One year of AU Mic with HARPS - II. Stellar activity and star-planet interaction

Article


Klein, Baptiste, Zicher, Norbert, Kavanagh, Robert D., Nielsen, Louise D, Aigrain, Suzanne, Vidotto, Aline A., Barragan, Oscar, Strugarek, Antoine, Nicholson, Belinda, Donati, Jean-Francois and Bouvier, Jerome. 2022. "One year of AU Mic with HARPS - II. Stellar activity and star-planet interaction." Monthly Notices of the Royal Astronomical Society. 512 (4), pp. 5067-5084. https://doi.org/10.1093/mnras/stac761
Article Title

One year of AU Mic with HARPS - II. Stellar activity and star-planet interaction

ERA Journal ID1074
Article CategoryArticle
AuthorsKlein, Baptiste, Zicher, Norbert, Kavanagh, Robert D., Nielsen, Louise D, Aigrain, Suzanne, Vidotto, Aline A., Barragan, Oscar, Strugarek, Antoine, Nicholson, Belinda, Donati, Jean-Francois and Bouvier, Jerome
Journal TitleMonthly Notices of the Royal Astronomical Society
Journal Citation512 (4), pp. 5067-5084
Number of Pages18
Year01 Jun 2022
PublisherOxford University Press
Place of PublicationUnited Kingdom
ISSN0035-8711
1365-2966
Digital Object Identifier (DOI)https://doi.org/10.1093/mnras/stac761
Web Address (URL)https://academic.oup.com/mnras/article/512/4/5067/6552137
Abstract

We present a spectroscopic analysis of a 1-yr intensive monitoring campaign of the 22-Myr old planet-hosting M dwarf AU Mic using the HARPS spectrograph. In a companion paper, we reported detections of the planet radial velocity (RV) signatures of the two close-in transiting planets of the system, with respective semi-amplitudes of 5.8 ± 2.5 and 8.5 ± 2.5 m s−1 for AU Mic b and AU Mic c. Here, we perform an independent measurement of the RV semi-amplitude of AU Mic c using Doppler imaging to simultaneously model the activity-induced distortions and the planet-induced shifts in the line profiles. The resulting semi-amplitude of 13.3 ± 4.1 m s−1 for AU Mic c reinforces the idea that the planet features a surprisingly large inner density, in tension with current standard models of core accretion. Our brightness maps feature significantly higher spot coverage and lower level of differential rotation than the brightness maps obtained in late 2019 with the SPIRou spectropolarimeter, suggesting that the stellar magnetic activity has evolved dramatically over a ∼1-yr time span. Additionally, we report a 3σ detection of a modulation at 8.33 ± 0.04 d of the He I D3 (5875.62 Å) emission flux, close to the 8.46-d orbital period of AU Mic b. The power of this emission (a few 1017 W) is consistent with 3D magnetohydrodynamical simulations of the interaction between stellar wind and the close-in planet if the latter hosts a magnetic field of ∼10 G. Spectropolarimetric observations of the star are needed to firmly elucidate the origin of the observed chromospheric variability.

Keywordsplanet and satellites: formation; stars: activity; stars: imaging; stars: individual: AU Microscopii
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020510109. Stellar astronomy and planetary systems
Public Notes

This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © The Author(s) 2022. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

Byline AffiliationsUniversity of Oxford, United Kingdom
Leiden University, Netherlands
European Southern Observatory, Germany
Paris Diderot University, France
School of Mathematics, Physics and Computing
Centre for Astrophysics
University of Toulouse, France
Grenoble Alpes University, France
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Mireles, Ismael, Shporer, Avi, Grieves, Nolan, Zhou, George, Gunther, Maximilian N., Brahm, Rafael, Ziegler, Carl, Stassun, Keivan G., Huang, Chelsea X., Nielsen, Louise, Dos Santos, Leonardo A., Udry, Stephane, Bouchy, Francois, Ireland, Michael, Wallace, Alexander, Sarkis, Paula, Henning, Thomas, Jordan, Andres, Law, Nicholas, ..., Zhan, Zhuchang. 2020. "TOI 694b and TIC 220568520b: Two Low-mass Companions near the Hydrogen-burning Mass Limit Orbiting Sun-like Stars." The Astronomical Journal. 160 (3), pp. 1-13. https://doi.org/10.3847/1538-3881/aba526
HATS-47b, HATS-48Ab, HATS-49b, and HATS-72b: Four Warm Giant Planets Transiting K Dwarfs
Hartman, J. D., Jordan, Andres, Bayliss, D., Bakos, G. A., Bento, J., Bhatti, W., Brahm, R., Csubry, Z., Espinoza, N., Henning, Th., Mancini, L., Penev, K., Rabus, M., Sarkis, P., Suc, V., de Val-Borro, M., Zhou, G., Crane, J. D., Shectman, S., ..., Ting, Eric B.. 2020. "HATS-47b, HATS-48Ab, HATS-49b, and HATS-72b: Four Warm Giant Planets Transiting K Dwarfs." The Astronomical Journal. 159 (4), pp. 1-23. https://doi.org/10.3847/1538-3881/ab7821
Two Intermediate-mass Transiting Brown Dwarfs from the TESS Mission
Carmichael, Theron W., Quinn, Samuel N., Mustill, Alexander J., Huang, Chelsea, Zhou, George, Persson, Carina M., Nielsen, Louise D., Collins, Karen A., Ziegler, Carl, Collins, Kevin I., Rodriguez, Joseph E., Shporer, Avi, Brahm, Rafael, Mann, Andrew W., Bouchy, Francois, Fridlund, Malcolm, Stassun, Keivan G., Hellier, Coel, Seidel, Julia V., ..., Latham, David W.. 2020. "Two Intermediate-mass Transiting Brown Dwarfs from the TESS Mission." The Astronomical Journal. 160 (1), pp. 1-15. https://doi.org/10.3847/1538-3881/ab9b84
TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
Osborn, Ares, Armstrong, David J., Cale, Bryson, Brahm, Rafael, Wittenmyer, Robert A., Dai, Fei, Crossfield, Ian J. M., Bryant, Edward M., Adibekyan, Vardan, Cloutier, Ryan, Collins, Karen A., Mena, E. Delgado, Fridlund, Malcolm, Hellier, Coel, Howell, Steve B., King, George W., Lillo-Box, Jorge, Otegi, Jon, Sousa, S., ..., Zohrabi, F.. 2021. "TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet." Monthly Notices of the Royal Astronomical Society. 507 (2), pp. 2782-2803. https://doi.org/10.1093/mnras/stab2313
The Youngest Planet to Have a Spin-Orbit Alignment Measurement AU Mic b
Addison, Brett C., Horner, Jonathan, Wittenmyer, Robert A., Heitzmann, Alexis, Plavchan, Peter, Wright, Duncan J., Nicholson, Belinda A., Marshall, Jonathan P., Clark, Jake T., Gunther, Maximilian N., Kane, Stephen R., Hirano, Teruyuki, Wang, Songhu, Kielkopf, John, Shporer, Avi, Tinney, C. G., Zhang, Hui, Ballard, Sarah, Bedding, Timothy, ..., Wang, Xian-Yu. 2021. "The Youngest Planet to Have a Spin-Orbit Alignment Measurement AU Mic b." The Astronomical Journal. 162 (4), pp. 1-12. https://doi.org/10.3847/1538-3881/ac1685
The surface magnetic activity of the weak-line T Tauri stars TWA 7 and TWA 25
Nicholson, B. A., Hussain, G., Donati, J.-F., Wright, D., Folsom, C.P., Wittenmyer, R., Okumura, J. and Carter, B.D.. 2021. "The surface magnetic activity of the weak-line T Tauri stars TWA 7 and TWA 25." Monthly Notices of the Royal Astronomical Society. 504 (2), pp. 2461-2473. https://doi.org/10.1093/mnras/stab879
TOI-954 b and K2-329 b: short-period Saturn-mass planets that test whether irradiation leads to inflation
Sha, Lizhou, Huang, Chelsea X., Shporer, Avi, Rodriguez, Joseph E., Vanderburg, Andrew, Brahm, Rafael, Hagelberg, Janis, Matthews, Elisabeth C., Ziegler, Carl, Livingston, John H., Stassun, Keivan G., Wright, Duncan J., Crane, Jeffrey D., Espinoza, Nestor, Bouchy, Francois, Bakos, Gaspar A., Collins, Karen A., Zhou, George, Bieryla, Allyson, ..., Villanueva, Steven. 2021. "TOI-954 b and K2-329 b: short-period Saturn-mass planets that test whether irradiation leads to inflation." The Astronomical Journal. 161 (2). https://doi.org/10.3847/1538-3881/abd187
A transiting warm giant planet around the young active star TOI-201
Hobson, Melissa J., Brahm, Rafael, Jordan, Andres, Espinoza, Nestor, Kossakowski, Diana, Henning, Thomas, Rojas, Felipe, Schlecker, Martin, Sarkis, Paula, Trifonov, Trifon, Thorngren, Daniel, Binnenfeld, Avraham, Shahaf, Sahar, Zucker, Shay, Ricker, George R., Latham, David W., Seager, S., Winn, Joshua N., Jenkins, Jon M., ..., Wright, Duncan J.. 2021. "A transiting warm giant planet around the young active star TOI-201." The Astronomical Journal. 161 (5). https://doi.org/10.3847/1538-3881/abeaa1
TESS delivers five new hot giant planets orbiting bright stars from the full-frame images
Rodriguez, Joseph E., Quinn, Samuel N., Zhou, George, Vanderburg, Andrew, Nielsen, Louise D., Wittenmyer, Robert A., Brahm, Rafael, Reed, Phillip A., Huang, Chelsea X., Vach, Sydney, Ciardi, David R., Oelkers, Ryan J., Stassun, Keivan G., Hellier, Coel, Gaudi, B. Scott, Eastman, Jason D., Collins, Karen A., Bieryla, Allyson, Christian, Sam, ..., Zhang, Hui. 2021. "TESS delivers five new hot giant planets orbiting bright stars from the full-frame images." The Astronomical Journal. 161 (4). https://doi.org/10.3847/1538-3881/abe38a
Planet Hunters TESS III: two transiting planets around the bright G dwarf HD 152843
Eisner, N. L., Nicholson, B. A., Barragan, O., Aigrain, S., Lintott, C., Kaye, L., Klein, B., Miller, G., Taylor, J., Zicher, N., Buchhave, L. A., Caldwell, D. A., Horner, J., Llama, J., Mortier, A., Rajpaul, V. M., Stassun, K., Sporer, A., Tkachenko, A., ..., Wilson, G. M.. 2021. "Planet Hunters TESS III: two transiting planets around the bright G dwarf HD 152843." Monthly Notices of the Royal Astronomical Society. 505 (2), pp. 1827-1840. https://doi.org/10.1093/mnras/stab1253
TOI-481 b and TOI-892 b: Two Long-period Hot Jupiters from the Transiting Exoplanet Survey Satellite
Brahm, Rafael, Nielsen, Louise D., Wittenmyer, Robert A., Wang, Songhu, Rodriguez, Joseph E., Espinoza, Nestor, Jones, Matias I., Jordan, Andres, Henning, Thomas, Hobson, Melissa, Kossakowski, Diana, Rojas, Felipe, Sarkis, Paula, Schlecker, Martin, Trifonov, Trifon, Shahaf, Sahar, Ricker, George, Vanderspek, Roland, Latham, David W., ..., Ziegler, Carl. 2020. "TOI-481 b and TOI-892 b: Two Long-period Hot Jupiters from the Transiting Exoplanet Survey Satellite." The Astronomical Journal. 160 (5), pp. 1-14. https://doi.org/10.3847/1538-3881/abba3b
TOI-257b (HD 19916b): a warm sub-saturn orbiting an evolved F-type star
Addison, Brett C., Wright, Duncan J., Nicholson, Belinda A., Cale, Bryson, Mocnik, Teo, Huber, Daniel, Plavchan, Peter, Wittenmyer, Robert A., Vanderburg, Andrew, Chaplin, William J., Chontos, Ashley, Clark, Jake T., Eastman, Jason D., Ziegler, Carl, Brahm, Rafael, Carter, Bradley D., Clerte, Mathieu, Espinoza, Nestor, Horner, Jonathan, ..., Themeßl, Nathalie. 2021. "TOI-257b (HD 19916b): a warm sub-saturn orbiting an evolved F-type star." Monthly Notices of the Royal Astronomical Society. 502 (3), pp. 3704-3722. https://doi.org/10.1093/mnras/staa3960
Measuring stellar magnetic helicity density
Lund, K., Jardine, M., Lehmann, L. T., Mackay, D. H., See, V., Vidotto, A. A., Donati, J. -F., Fares, R., Folsom, C. P., Jeffers, S. V., Marsden, S. C., Morin, J. and Petit, P.. 2020. "Measuring stellar magnetic helicity density." Monthly Notices of the Royal Astronomical Society. 493 (1), pp. 1003-1012. https://doi.org/10.1093/mnras/staa297
Magnetic field and prominences of the young, solar-like, ultra-rapid rotator V530 Persei
Cang, T. -Q., Petit, P., Donati, J. -F., Folsom, C. P., Jardine, M., D'Angelo, C. Villarreal, Vidotto, A. A., Marsden, S. C., Gallet, F. and Zaire, B.. 2020. "Magnetic field and prominences of the young, solar-like, ultra-rapid rotator V530 Persei." Astronomy and Astrophysics: a European journal. 643, pp. 1-16. https://doi.org/10.1051/0004-6361/202037693
Planet Hunters TESS II: findings from the first two years of TESS
Eisner, N. L., Barragan, O., Lintott, C., Aigrain, S., Nicholson, B., Boyajian, T. S., Howells, S., Johnston, C., Lakeland, B., Miller, G., McMaster, A., Parviainen, H., Safron, E. J., Schwamb, M. E., Trouille, L., Vaughan, S., Zicher, N., Allen, C., Allen, S., ..., Hoffman, T.. 2021. "Planet Hunters TESS II: findings from the first two years of TESS." Monthly Notices of the Royal Astronomical Society. 501 (4), pp. 4669-4690. https://doi.org/10.1093/mnras/staa3739
Transits of Known Planets Orbiting a Naked-eye Star
Kane, Stephen R., Yalcinkaya, Selcuk, Osborn, Hugh P., Dalba, Paul A., Nielsen, Louise D., Vanderburg, Andrew, Mocnik, Teo, Hinkel, Natalie R., Ostberg, Colby, Esmer, Ekrem Murat, Udry, Stephane, Fetherolf, Tara, Basturk, Ozgur, Ricker, George R., Vanderspek, Roland, Latham, David W., Seager, Sara, Winn, Joshua N., Jenkins, Jon M., ..., Wright, Jason T.. 2020. "Transits of Known Planets Orbiting a Naked-eye Star." The Astronomical Journal. 160 (3), pp. 1-10. https://doi.org/10.3847/1538-3881/aba835
TOI-222: a single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS
Lendl, Monika, Bouchy, Francois, Gill, Samuel, Nielsen, Louise D., Turner, Oliver, Stassun, Keivan, Acton, Jack S., Anderson, David R., Armstrong, David J., Bayliss, Daniel, Belardi, Claudia, Bryant, Edward M., Burleigh, Matthew R., Chaushev, Alexander, Casewell, Sarah L., Cooke, Benjamin F., Eigmuller, Philipp, Gillen, Edward, Goad, Michael R., ..., Ziegler, Carl. 2019. "TOI-222: a single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS." Monthly Notices of the Royal Astronomical Society. 492 (2), pp. 1761-1769. https://doi.org/10.1093/mnras/stz3545
Erratum: The solar wind in time II: 3D stellar wind structure and radio emission
O Fionnagain, D. O., Vidotto, A. A., Petit, P., Folsom, C. P., Jeffers, S. V., Marsden, S. C., Morin, J., do Nascimento, Jr., J.-D and BCool Collaboration, .. 2019. "Erratum: The solar wind in time II: 3D stellar wind structure and radio emission." Monthly Notices of the Royal Astronomical Society. 487 (3), pp. 3079-3081. https://doi.org/10.1093/mnras/stz1308
Do non-dipolar magnetic fields contribute to spin-down torques?
See, Victor, Matt, Sean P, Finley, Adam J, Folsom, Colin P, Boro Saikia, Sudeshna, Donati, Jean-Francois, Fares, Rim, Hebrard, Elodie M, Jardine, Moira M, Jeffers, Sandra V, Marsden, Stephen C, Mengel, Matthew W, Morin, Julien, Petit, Pascal, Vidotto, Aline A and Waite, Ian W. 2019. "Do non-dipolar magnetic fields contribute to spin-down torques?" The Astrophysical Journal: an international review of astronomy and astronomical physics. 886 (2), pp. 1-15. https://doi.org/10.3847/1538-4357/ab46b2
Near-resonance in a System of Sub-Neptunes from TESS
Quinn, Samuel N., Becker, Juliette C., Rodriguez, Joseph E., Hadden, Sam, Huang, Chelsea X., Morton, Timothy D., Adams, Fred C., Armstrong, David, Eastman, Jason D., Horner, Jonathan, Kane, Stephen R., Lissauer, Jack J., Twicken, Joseph D., Vanderburg, Andrew, Wittenmyer, Rob, Ricker, George R., Vanderspek, Roland K., Latham, David W., Seager, Sara, ..., Ziegler, Carl. 2019. "Near-resonance in a System of Sub-Neptunes from TESS." The Astronomical Journal. 158 (5), pp. 1-16. https://doi.org/10.3847/1538-3881/ab3f2b
Magnetic fields of intermediate-mass T Tauri stars: I. Magnetic detections and fundamental stellar parameters
Villebrun, F., Alecian, E., Hussain, G., Bouvier, J., Folsom, C. P., Lebreton, Y., Amard, L., Charbonnel, C., Gallet, F., Haemmerle, L., Bohm, T., Johns-Krull, C., Kochukhov, O., Marsden, S. C., Morin, J. and Petit, P.. 2019. "Magnetic fields of intermediate-mass T Tauri stars: I. Magnetic detections and fundamental stellar parameters." Astronomy and Astrophysics: a European journal. 622, pp. 1-21. https://doi.org/10.1051/0004-6361/201833545
The solar wind in time – II. 3D stellar wind structure and radio emission
O Fionnagain, D., Vidotto, A. A., Petit, P., Folsom, C. P., Jeffers, S. V., Marsden, S. C., Morin, J., do Nascimento, Jr., J.-D. and BCool Collaboration, .. 2019. "The solar wind in time – II. 3D stellar wind structure and radio emission." Monthly Notices of the Royal Astronomical Society. 483 (1), pp. 873-886. https://doi.org/10.1093/mnras/sty3132
The rotationally modulated polarization of ξ Boo A
Cotton, Daniel V., Evensberget, Dag, Marsden, Stephen C., Bailey, Jeremy, Zhao, Jinglin, Kedziora-Chudczer, Lucyna, Carter, Bradley D., Bott, Kimberly, Vidotto, Aline A., Petit, Pascal, Morin, Julien and Jeffers, Sandra V.. 2019. "The rotationally modulated polarization of ξ Boo A." Monthly Notices of the Royal Astronomical Society. 483 (2), pp. 1574-1581. https://doi.org/10.1093/mnras/sty3180
MINERVA-Australis. I. Design, Commissioning, and First Photometric Results
Addison, Brett, Wright, Duncan J., Wittenmyer, Robert A., Horner, Jonathan, Mengel, Matthew W., Johns, Daniel, Marti, Connor, Nicholson, Belinda, Okumura, Jack, Bowler, Brendan, Crossfield, Ian, Kane, Stephen R., Kielkopf, John, Plavchan, Peter, Tinney, C.G., Zhang, Hui, Clark, Jake T., Clerte, Mathieu, Eastman, Jason D., ..., Carter, Bradley D.. 2019. "MINERVA-Australis. I. Design, Commissioning, and First Photometric Results." Publications of the Astronomical Society of the Pacific. 131 (1005), pp. 1-15. https://doi.org/10.1088/1538-3873/ab03aa
Supernova Hunters Discovery of 24 Optical Transients with Pan-STARRS
Fulton, M., Smith, K. W., Wright, D. E., Simmons, B., Krawczyk, C., Huber, M., Srivastav, S., Lintott, C., Nicholson, B., Miller, G., Galbany, L., Smartt, S. J., Chambers, K. C., Ince, Robin, Burton, Trent, Burton, Melinda, Gostling, Joanna, McBrien, O. R., Young, D. R., ..., Wals, Jennifer S. 2020. "Supernova Hunters Discovery of 24 Optical Transients with Pan-STARRS." Transient Name Server AstroNote.
Estimating magnetic filling factors from Zeeman–Doppler magnetograms
See, Victor, Matt, Sean P., Folsom, Colin P., Boro Saikia, Sudeshna, Donati, Jean-Francois, Fares, Rim, Finley, Adam J., Hebrard, Elodie M., Jardine, Moira M., Jeffers, Sandra J., Lehmann, Lisa T., Marsden, Stephen C., Mengel, Matthew W., Morin, Julian, Petit, Pascal, Vidotto, Aline A. and Waite, Ian A.. 2019. "Estimating magnetic filling factors from Zeeman–Doppler magnetograms." The Astrophysical Journal: an international review of astronomy and astronomical physics. 876 (2), pp. 118-127. https://doi.org/10.3847/1538-4357/ab1096
A Jovian planet in an eccentric 11.5 day orbit around HD 1397 discovered by TESS
Nielsen, L. D., Bouchy, F., Turner, O., Giles, H., Suarez Mascareno, A., Lovis, C., Marmier, M., Pepe, F., Segransan, D., Udry, S., Otegi, J. F., Ottoni, G., Staport, M., Ricker, G., Vanderspek, R., Latham, D. W., Seager, S., Winn, J. N., Jenkins, J. M., ..., Schlieder, J.. 2019. "A Jovian planet in an eccentric 11.5 day orbit around HD 1397 discovered by TESS." Astronomy and Astrophysics: a European journal. 623, pp. 1-8. https://doi.org/10.1051/0004-6361/201834577
The gender balance of the Australian space research community: a snapshot from the 16th ASRC, 2016
Horner, Jonathan, Nicholson, Belinda, Cairns, Ann, Short, Wayne and Gorman, Alice. 2017. "The gender balance of the Australian space research community: a snapshot from the 16th ASRC, 2016." Short, Wayne and Cairns, Iver (ed.) 16th Australian Space Research Conference (ASRC 2016). Melbourne, Australia 26 - 28 Sep 2016 Sydney, Australia.
The open flux evolution of a solar-mass star on the main sequence
See, V., Jardine, M., Vidotto, A. A., Donati, J.-F., Boro Saikia, S., Fares, R., Folsom, C. P., Jeffers, S. V., Marsden, S. C., Morin, J. and Petit, P.. 2018. "The open flux evolution of a solar-mass star on the main sequence." Monthly Notices of the Royal Astronomical Society. 474 (1), pp. 536-546. https://doi.org/10.1093/mnras/stx2599
Direct evidence of a full dipole flip during the magnetic cycle of a sun-like star
Boro Saikia, S., Lueftinger, T., Jeffers, S. V., Folsom, C. P., See, V., Petit, P., Marsden, S. C., Vidotto, A. A., Morin, J., Reiners, A. and Guedel, M.. 2018. "Direct evidence of a full dipole flip during the magnetic cycle of a sun-like star." Astronomy and Astrophysics: a European journal. 620, pp. 1-12. https://doi.org/10.1051/0004-6361/201834347
The relation between stellar magnetic field geometry and chromospheric activity cycles – II The rapid 120-day magnetic cycle of τ Bootis
Jeffers, S. V., Mengel, M., Moutou, C., Marsden, S. C., Barnes, J. R., Jardine, M. M., Petit, P., Schmitt, J. H. M. M., See, V. and Vidotto, A. A.. 2018. "The relation between stellar magnetic field geometry and chromospheric activity cycles – II The rapid 120-day magnetic cycle of τ Bootis." Monthly Notices of the Royal Astronomical Society. 479 (4), pp. 5266-5271. https://doi.org/10.1093/mnras/sty1717
The surface magnetic activity of the weak-line T Tauri stars TWA 9Aand V1095 Sco
Nicholson, B. A., Hussain, G. A. J., Donati, J.-F., Folsom, C. P., Mengel, M., Carter, B. D. and Wright, D.. 2018. "The surface magnetic activity of the weak-line T Tauri stars TWA 9Aand V1095 Sco." Monthly Notices of the Royal Astronomical Society. 480 (2), pp. 1754-1766. https://doi.org/10.1093/mnras/sty1965
The magnetic activity, winds and planets of young, cool stars
Nicholson, Belinda A.. 2018. The magnetic activity, winds and planets of young, cool stars. PhD Thesis Doctor of Philosophy. University of Southern Queensland. https://doi.org/10.26192/5f643970ce22a
Magnetic fields on young, moderately rotating Sun-like stars - II. EK Draconis (HD 129333)
Waite, I. A., Marsden, S. C., Carter, B. D., Petit, P., Jeffers, S. V., Morin, J., Vidotto, A. A. and Donati, J.-F.. 2017. "Magnetic fields on young, moderately rotating Sun-like stars - II. EK Draconis (HD 129333)." Monthly Notices of the Royal Astronomical Society. 465 (2), pp. 2076-2091. https://doi.org/10.1093/mnras/stw2731
The energy budget of stellar magnetic fields: comparing non-potential simulations and observations
Lehmann, L. T., Jardine, M. M., Vidotto, A. A., Mackay, D. H., See, V., Donati, J.-F., Folsom, C. P., Jeffers, S. V., Marsden, S. C., Morin, J. and Petit, P.. 2017. "The energy budget of stellar magnetic fields: comparing non-potential simulations and observations." Monthly Notices of the Royal Astronomical Society: Letters. 466 (1), pp. L24-L28. https://doi.org/10.1093/mnrasl/slw225
Studying stellar spin-down with Zeeman–Doppler magnetograms
See, V., Jardine, M., Vidotto, A. A., Donati, J-F., Boro Saikia, S., Fares, R., Folsom, C. P., Hebrard, E. M., Jeffers, S. V., Marsden, S. C., Morin, J., Petit, P. and Waite, I. A.. 2017. "Studying stellar spin-down with Zeeman–Doppler magnetograms." Monthly Notices of the Royal Astronomical Society. 466 (2), pp. 1542-1554. https://doi.org/10.1093/mnras/stw3094
The relation between stellar magnetic field geometry and chromospheric activity cycles – I. The highly variable field of ε Eridani at activity minimum
Jeffers, S. V., Boro Saikia, S., Barnes, J. R., Petit, P., Marsden, S. C., Jardine, M. M. and Vidotto, A. A.. 2017. "The relation between stellar magnetic field geometry and chromospheric activity cycles – I. The highly variable field of ε Eridani at activity minimum." Monthly Notices of the Royal Astronomical Society: Letters. 471 (1), pp. L96-L100. https://doi.org/10.1093/mnrasl/slx097
A BCool survey of the magnetic fields of planet-hosting solar-type stars
Mengel, M. W., Marsden, S. C., Carter, B. D., Horner, J., King, R., Fares, R., Jeffers, S. V., Petit, P., Vidotto, A. A. and Morin, J.. 2017. "A BCool survey of the magnetic fields of planet-hosting solar-type stars." Monthly Notices of the Royal Astronomical Society. 465 (3), pp. 2734-2747. https://doi.org/10.1093/mnras/stw2949
The connection between stellar activity cycles and magnetic field topology
See, V., Jardine, M., Vidotto, A. A., Donati, J.-F., Boro Saikia, S., Bouvier, J., Fares, R., Folsom, C. P., Gregory, S. G., Hussain, G., Jeffers, S. V., Marsden, S. C., Morin, J., Moutou, C., do Nascimento Jr., J. D., Petit, P. and Waite, I. A.. 2016. "The connection between stellar activity cycles and magnetic field topology." Monthly Notices of the Royal Astronomical Society. 462 (4), pp. 4442-4450. https://doi.org/10.1093/mnras/stw2010
The energy budget of stellar magnetic fields
See, V., Jardine, M., Vidotto, A. A., Donati, J.-F., Folsom, C. P., Boro Saikia, S., Bouvier, J., Fares, R., Gregory, S. G., Hussain, G., Jeffers, S. V., Marsden, S. C., Morin, J., Moutou, C., do Nascimento Jr., J. D., Petit, P., Rosen, L. and Waite, I. A.. 2015. "The energy budget of stellar magnetic fields." Monthly Notices of the Royal Astronomical Society. 453 (4), pp. 4301-4310. https://doi.org/10.1093/mnras/stv1925
A Bcool magnetic snapshot survey of solar-type stars
Marsden, S. C., Petit, P., Jeffers, S. V., Morin, J., Fares, R., Reiners, A., do Nascimento Jr., J.-D., Auriere, M., Bouvier, J., Carter, B. D., Catala, C., Dintrans, B., Donati, J. -F., Gastine, T., Jardine, M., Konstantinova-Antova, R., Lanoux, J., Lignieres, F., Morgenthaler, A., ..., Van Grootel, V.. 2014. "A Bcool magnetic snapshot survey of solar-type stars." Monthly Notices of the Royal Astronomical Society. 444 (4), pp. 3517-3536. https://doi.org/10.1093/mnras/stu1663
Rotation in the Pleiades with K2. III. Speculations on origins and evolution
Stauffer, John, Rebull, Luisa, Bouvier, Jerome, Hillenbrand, Lynne A., Collier-Cameron, Andrew, Pinsonneault, Marc, Aigrain, Suzanne, Barrado, David, Bouy, Herve, Ciardi, David, Cody, Ann Marie, David, Trevor, Micela, Giusi, Soderblom, David, Somers, Garrett, Stassun, Keivan G., Valenti, Jeff and Vrba, Frederick J.. 2016. "Rotation in the Pleiades with K2. III. Speculations on origins and evolution." The Astronomical Journal. 152 (5), pp. 1-22. https://doi.org/10.3847/0004-6256/152/5/115
Rotation in the Pleiades with K2. II. Multiperiod stars
Rebull, L. M., Stauffer, J. R., Bouvier, J., Cody, A. M., Hillenbrand, L. A., Soderblom, D. R., Valenti, J., Barrado, D., Bouy, H., Ciardi, D., Pinsonneault, M., Stassun, K., Micela, G., Aigrain, S., Vrba, F., Somers, G., Gillen, E. and Collier Cameron, A.. 2016. "Rotation in the Pleiades with K2. II. Multiperiod stars." The Astronomical Journal. 152 (5), pp. 114-133. https://doi.org/10.3847/0004-6256/152/5/114
Rotation in the Pleiades with K2. I. Data and first results
Rebull, L. M., Stauffer, J. R., Bouvier, J., Cody, A. M., Hillenbrand, L. A., Soderblom, D. R., Valenti, J., Barrado, D., Bouy, H., Ciardi, D., Pinsonneault, M., Stassun, K., Micela, G., Aigrain, S., Vrba, F., Somers, G., Christiansen, J., Gillen, E. and Collier Cameron, A.. 2016. "Rotation in the Pleiades with K2. I. Data and first results." The Astronomical Journal. 152 (5), pp. 113-131. https://doi.org/10.3847/0004-6256/152/5/113
Could a change in magnetic field geometry cause the break in the wind-activity relation?
Vidotto, A. A., Donati, J.-F., Jardine, M., See, V., Petit, P., Boisse, I., Boro Saikia, S., Hebrard, E., Jeffers, S. V., Marsden, S. C. and Morin, J.. 2016. "Could a change in magnetic field geometry cause the break in the wind-activity relation?" Monthly Notices of the Royal Astronomical Society: Letters. 455 (1), pp. L52-L56. https://doi.org/10.1093/mnrasl/slv147
The evolution of surface magnetic fields in young solar-type stars I: the first 250 Myr
Folsom, C. P., Petit, P., Bouvier, J., Lebre, A., Amard, L., Palacios, A., Morin, J., Donati, J.-F., Jeffers, S. V., Marsden, S. C. and Vidotto, A. A.. 2016. "The evolution of surface magnetic fields in young solar-type stars I: the first 250 Myr." Monthly Notices of the Royal Astronomical Society. 457 (1), pp. 580-607. https://doi.org/10.1093/mnras/stv2924
Magnetic field and wind of Kappa Ceti: toward the planetary habitability of the young sun when life arose on earth
do Nascimento Jr., J.-D., Vidotto, A. A., Petit, P., Folsom, C., Castro, M., Marsden, S. C., Morin, J., Porto de Mello, G. F., Meibom, S., Jeffers, S. V., Guinan, E. and Ribas, I.. 2016. "Magnetic field and wind of Kappa Ceti: toward the planetary habitability of the young sun when life arose on earth." The Astrophysical Journal Letters. 820 (1), pp. L15 (1)-L15 (6). https://doi.org/10.3847/2041-8205/820/1/L15
Temporal variability of the wind from the star τ Boötis
Nicholson, B. A., Vidotto, A. A., Mengel, M., Brookshaw, L., Carter, B., Petit, P., Marsden, S. C., Jeffers, S. V. and Fares, R.. 2016. "Temporal variability of the wind from the star τ Boötis." Monthly Notices of the Royal Astronomical Society. 459 (2), pp. 1907-1915. https://doi.org/10.1093/mnras/stw731
A solar-like magnetic cycle on the mature K-dwarf 61 Cygni A (HD 201091)
Boro Saikia, S., Jeffers, S. V., Morin, J., Petit, P., Folsom, C. P., Marsden, S. C., Donati, J.-F., Cameron, R., Hall, J. C., Perdelwitz, V., Reiners, A. and Vidotto, A. A.. 2016. "A solar-like magnetic cycle on the mature K-dwarf 61 Cygni A (HD 201091)." Astronomy and Astrophysics: a European journal. 594 (A29). https://doi.org/10.1051/0004-6361/201628262
The Discovery and Mass Measurement of a New Ultra-short-period Planet: K2-131b
Dai, Fei, Winn, Joshua N., Gandolfi, Davide, Wang, Sharon X., Teske, Johanna K., Burt, Jennifer, Albrecht, Simon, Barragan, Oscar, Cochran, William D., Endl, Michael, Fridlund, Malcolm, Hatzes, Artie P., Hirano, Teruyuki, Hirsch, Lea A., Johnson, Marshall C., Justesen, Anders Bo, Livingston, John, Persson, Carina M., Prieto-Arranz, Jorge, ..., Wittenmyer, Robert A.. 2017. "The Discovery and Mass Measurement of a New Ultra-short-period Planet: K2-131b." The Astronomical Journal. 154 (6), pp. 1-17. https://doi.org/10.3847/1538-3881/aa9065
Winds of planet hosting stars
Nicholson, B. A., Mengel, M. W., Brookshaw, L., Vidotto, A. A., Carter, B. D., Marsden, S. C., Soutter, J., Waite, I. A. and Horner, J.. 2015. "Winds of planet hosting stars." Short, Wayne and Cairns, Iver (ed.) 14th Australian Space Research Conference (ASRC 2014). Adelaide, Australia 29 Sep - 01 Oct 2014 Sydney, Australia.
Observations of non-solar-type dynamo processes in stars with shallow convective zones
Jeffers, S. V., Donati, J. -F., Alecian, E. and Marsden, S. C.. 2011. "Observations of non-solar-type dynamo processes in stars with shallow convective zones." Monthly Notices of the Royal Astronomical Society. 411 (2), pp. 1301-1312. https://doi.org/10.1111/j.1365-2966.2010.17762.x
The evolving magnetic topology of τ Boötis
Mengel, M. W., Fares, R., Marsden, S. C., Carter, B. D., Jeffers, S. V., Petit, P., Donati, J.-F. and Folsom, C. P.. 2016. "The evolving magnetic topology of τ Boötis." Monthly Notices of the Royal Astronomical Society. 459 (4), pp. 4325-4342. https://doi.org/10.1093/mnras/stw828
Magnetic fields on young, moderately rotating sun-like stars - I: HD 35296 and HD 29615
Waite, I. A., Marsden, S. C., Carter, B. D., Petit, P., Donati, J. F., Jeffers, S. V. and Boro Saikia, S.. 2015. "Magnetic fields on young, moderately rotating sun-like stars - I: HD 35296 and HD 29615." Monthly Notices of the Royal Astronomical Society. 449 (1), pp. 8-24. https://doi.org/10.1093/mnras/stv006
A maximum entropy approach to detect close-in giant planets around active stars
Petit, P., Donati, J.-F., Hebrard, E., Morin, J., Folsom, C. P., Bohm, T., Boisse, I., Borgniet, S., Bouvier, J., Delfosse, X., Hussain, G., Jeffers, S. V., Marsden, S. C. and Barnes, J. R.. 2015. "A maximum entropy approach to detect close-in giant planets around active stars." Astronomy and Astrophysics: a European journal. 584 (A84). https://doi.org/10.1051/0004-6361/201525993
Characterizing the cross dispersion reflection gratings of CRIRES+
Follert, Roman, Taubert, Dieter, Hollandt, Joerg, Monte, Christian, Oliva, Ernesto, Seemann, Ulf, Loewinger, Tom, Anwand-Heerwart, Heiko, Schmidt, Christof, Dorn, Reinhold J., Bristow, Paul, Hatzes, Artie, Reiners, Ansgar, Piskunov, Nikolai, Heiter, Ulrike, Stempels, Eric, Marquart, Thomas, Lavail, Alexis, Cumani, Claudio, ..., Tordo, Sebastien. 2016. "Characterizing the cross dispersion reflection gratings of CRIRES+." SPIE - Ground-based and Airborne Instrumentation for Astronomy. United States. SPIE. https://doi.org/10.1117/12.2232569
The "+" for CRIRES: enabling better science at infrared wavelength and high spectral resolution at the ESO VLT
Dorn, Reinhold J, Follert, Roman, Bristow, Paul, Cumani, Claudio, Eschbaumer, Siegfried, Grunhut, Jason, Haimerl, Andreas, Hatzes, Artie, Heiter, Ulrike, Hinterschuster, Renate, Ives, Derek J, Jung, Yves, Kerber, Florian, Klein, Barbara, Lavaila, Alexis, Lizon, Jean Louis, Löwinger, Tom, Molina-Condea, Ignacio, Nicholson, Belinda, ..., Tordo, Sebastien. 2016. "The "+" for CRIRES: enabling better science at infrared wavelength and high spectral resolution at the ESO VLT ." Ground-based and Airborne Instrumentation for Astronomy IV. Edinburgh, United Kingdom 26 Jun - 01 Jul 2016 United States. SPIE. https://doi.org/10.1117/12.2232837
Eridani: an active K dwarf and a planet hosting star? The variability of its large-scale magnetic field topology
Jeffers, S. V., Petit, P., Marsden, S. C., Morin, J., Donati, J. -F. and Folsom, C. P.. 2014. "Eridani: an active K dwarf and a planet hosting star? The variability of its large-scale magnetic field topology." Astronomy and Astrophysics: a European journal. 569, pp. 1-8. https://doi.org/10.1051/0004-6361/201423725
The effects of stellar winds on the magnetospheres and potential habitability of exoplanets
See, V., Jardine, M., Vidotto, A. A., Petit, P., Marsden, S. C., Jeffers, S. V. and do Nascimento Jr., J. D.. 2014. "The effects of stellar winds on the magnetospheres and potential habitability of exoplanets." Astronomy and Astrophysics: a European journal. 570 (A99), pp. 1-10. https://doi.org/10.1051/0004-6361/201424323
Stellar magnetism: empirical trends with age and rotation
Vidotto, A. A., Gregory, S. G., Jardine, M., Donati, J. -F., Petit, P., Morin, J., Folsom, C. P., Bouvier, J., Cameron, A. C., Hussain, G., Marsden, S., Waite, I. A., Fares, R., Jeffers, S. and do Nascimento Jr., J.-D.. 2014. "Stellar magnetism: empirical trends with age and rotation." Monthly Notices of the Royal Astronomical Society. 441 (3), pp. 2361-2374. https://doi.org/10.1093/mnras/stu728
On the effects of stellar winds on exoplanetary magnetospheres
See, V., Jardine, M., Vidotto, A. A., Petit, P., Marsden, S. C. and Jeffers, S. V.. 2014. "On the effects of stellar winds on exoplanetary magnetospheres." Petit, Pascal, Jardine, Moira and Spruit, Henk (ed.) International Astronomical Union Symposium No. 302 (IAU 302): Magnetic Fields throughout Stellar Evolution. Biarritz, France 25 - 30 Aug 2013 Cambridge, United Kingdom. https://doi.org/10.1017/S174392131400221X
Photometry of very bright stars with Kepler and K2 smear data
Pope, B. J. S., White, T. R., Huber, D., Murphy, S. J., Bedding, T. R., Caldwell, D. A., Sarai, A., Aigrain, S. and Barclay, T.. 2015. "Photometry of very bright stars with Kepler and K2 smear data." Monthly Notices of the Royal Astronomical Society. 455 (1), pp. L36-L40. https://doi.org/10.1093/mnrasl/slv143
Magnetospheric accretion on the T Tauri star BP Tauri
Donati, J. -F., Jardine, M. M., Gregory, S. G., Petit, P., Paletou, F., Bouvier, J., Dougados, C., Menard, F., Cameron, A. C., Harries, T. J., Hussain, G. A. J., Unruh, Y., Morin, J., Marsden, S. C., Manset, N., Auriere, M., Catala, C. and Alecian, E.. 2008. "Magnetospheric accretion on the T Tauri star BP Tauri." Monthly Notices of the Royal Astronomical Society. 386 (3), pp. 1234-1251. https://doi.org/10.1111/j.1365-2966.2008.13111.x
The first magnetic maps of a pre-main-sequence binary star system - HD 155555
Dunstone, N. J., Hussain, G. A. J., Collier Cameron, A., Marsden, S. C., Jardine, M., Stempels, H. C., Ramirez Velez, J. C. and Donati, J. -F.. 2008. "The first magnetic maps of a pre-main-sequence binary star system - HD 155555." Monthly Notices of the Royal Astronomical Society. 387 (2), pp. 481-496. https://doi.org/10.1111/j.1365-2966.2008.13196.x
Differential rotation on both components of the pre-main-sequence binary system HD 155555
Dunstone, N. J., Hussain, G. A. J., Collier Cameron, A., Marsden, S. C., Jardine, M., Barnes, J. R., Ramirez Velez, J. C. and Donati, J. -F.. 2008. "Differential rotation on both components of the pre-main-sequence binary system HD 155555." Monthly Notices of the Royal Astronomical Society. 387 (4), pp. 1525-1536. https://doi.org/10.1111/j.1365-2966.2008.13338.x
Resolving debris discs in the far-infrared: early highlights from the DEBRIS survey [Letter to the editor]
Matthews, B. C., Sibthorpe, B., Kennedy, G., Phillips, N., Churcher, L., Duchene, G., Greaves, J. S., Lestrade, J. -F., Moro-Martin, A., Wyatt, M. C., Bastien, P., Biggs, A., Bouvier, J., Butner, H. M., Dent, W. R. F., Di Francesco, J., Eisloffel, J., Graham, J., Harvey, P., ..., Zuckerman, B.. 2010. "Resolving debris discs in the far-infrared: early highlights from the DEBRIS survey [Letter to the editor] ." Astronomy and Astrophysics: a European journal. 518 (8), p. L135. https://doi.org/10.1051/0004-6361/201014667
Why are some A stars magnetic, while most are not?
Wade, G. A., Silvester, J., Bale, K., Johnson, N., Power, J., Auriere, M., Lignieres, F., Dintrans, B., Donati, J. -F., Hui Bon Hoa, A., Mouillet, D., Naseri, S., Paletou, F., Petit, P., Rincon, F., Toque, N., Bagnulo, S., Folsom, C. P., Landstreet, J. D., ..., Marsden, S. C.. 2009. "Why are some A stars magnetic, while most are not?" Berdyugina, Svetlana V., Nagendra, K. N. and Ramelli, Renzo (ed.) Astronomical Society of the Pacific Conference(SPW5): 5th Solar Polarization Workshop: a Workshop In Honor of Jan Olof Stenflo. Ascona, Switzerland 17 - 21 Sep 2007 San Francisco, CA. United States.
Magnetism in pre-MS intermediate-mass stars and the fossil field hypothesis
Alecian, E., Wade, G. A., Catala, C., Folsom, C., Grunhut, J., Donati, J. -F., Petit, P., Bagnulo, S., Marsden, S. C., Ramirez, J., Landstreet, J. D., Boehm, T., Bouret, J. -C. and Silvester, J.. 2008. "Magnetism in pre-MS intermediate-mass stars and the fossil field hypothesis." CP#AP Workshop 2007. Vienna, Austria 10 - 14 Sep 2007 Bratislava, Slovakia. Vydavatel'stvo Slovenskej Akademie Vied Veda.
Magnetic fields and differential rotation on the pre-main sequence -I. The early-G star HD 141943 - brightness and magnetic topologies
Marsden, S. C., Jardine, M. M., Ramirez Velez, J. C., Alecian, E., Brown, C. J., Carter, B. D., Donati, J.-F., Dunstone, N., Hart, R., Semel, M. and Waite, I. A.. 2011. "Magnetic fields and differential rotation on the pre-main sequence -I. The early-G star HD 141943 - brightness and magnetic topologies." Monthly Notices of the Royal Astronomical Society. 413 (3), pp. 1922-1938. https://doi.org/10.1111/j.1365-2966.2011.18367.x
Magnetic fields and differential rotation on the pre-main sequence - II. The early-G star HD 141943 - coronal magnetic field, Hα emission and differential rotation
Marsden, S. C., Jardine, M. M., Ramirez Velez, J. C., Alecian, E., Brown, C. J., Carter, B. D., Donati, J.-F., Dunstone, N., Hart, R., Semel, M. and Waite, I. A.. 2011. "Magnetic fields and differential rotation on the pre-main sequence - II. The early-G star HD 141943 - coronal magnetic field, Hα emission and differential rotation." Monthly Notices of the Royal Astronomical Society. 413 (3), pp. 1939-1948. https://doi.org/10.1111/j.1365-2966.2011.18272.x
Magnetic fields and differential rotation on the pre-main sequence - III. The early-G star HD 106506
Waite, I. A., Marsden, S. C., Carter, B. D., Hart, R., Donati, J. -F., Ramirez Velez, J. C., Semel, M. and Dunstone, N.. 2011. "Magnetic fields and differential rotation on the pre-main sequence - III. The early-G star HD 106506." Monthly Notices of the Royal Astronomical Society. 413 (3), pp. 1949-1960. https://doi.org/10.1111/j.1365-2966.2011.18366.x
Do young Suns undergo magnetic reversals?
Marsden, Stephen C., Jeffers, Sandra V., Donati, Jean-Francois, Mengel, Matthew W., Waite, Ian A. and Carter, Brad D.. 2010. "Do young Suns undergo magnetic reversals?" Kosovichev, Alexander, Rozelot, Jean-Pierre and Andrei, Alexandre (ed.) International Astronomical Union Symposium (IAUS 264): Solar and Stellar Variability: Impact on Earth and Planets. Rio de Janeiro, Brazil 03 - 07 Aug 2009 Cambridge, United Kingdom. https://doi.org/10.1017/S1743921309992535
Spectropolarimetric observations of active stars
Donati, J. -F., Semel, M., Carter, B. D., Rees, D. E. and Cameron, A. C.. 1997. "Spectropolarimetric observations of active stars." Monthly Notices of the Royal Astronomical Society. 291 (4), pp. 658-682. https://doi.org/10.1093/mnras/291.4.658
A sun in the spectroscopic binary IM Pegasi, the guide star for the Gravity Probe B mission
Marsden, S. C., Berdyugina, S. V., Donati, J.-F., Eaton, J. A., Williamson, M. H., Ilyin, I., Fischer, D. A., Munoz, M., Isaacson, H., Ratner, M. I., Semel, M., Petit, P. and Carter, B. D.. 2005. "A sun in the spectroscopic binary IM Pegasi, the guide star for the Gravity Probe B mission." The Astrophysical Journal: an international review of astronomy and astronomical physics. 634 (2), pp. L173-L176. https://doi.org/10.1086/498941
A multiwavelength study of CC Eridani
Slee, O. B., Budding, E., Carter, Brad D., Mengel, Matthew Wayne, Waite, Ian A. and Donati, J.-F.. 2004. "A multiwavelength study of CC Eridani." Publications of the Astronomical Society of Australia. 21 (1), pp. 72-81. https://doi.org/10.1071/AS03034
Dynamo processes and activity cycles of the active stars AB Doradus, LQ Hydrae and HR 1099
Donati, J.-F., Collier Cameron, A., Semel, M., Hussain, G. A. J., Petit, P., Carter, B. D., Marsden, S. C., Mengel, M., Lopez Ariste, A., Jeffers, S. V. and Rees, D. E.. 2003. "Dynamo processes and activity cycles of the active stars AB Doradus, LQ Hydrae and HR 1099." Monthly Notices of the Royal Astronomical Society. 345 (4), pp. 1145-1186. https://doi.org/10.1046/j.1365-2966.2003.07031.x
The chromospheric emission of solar-type stars in the young open clusters IC 2391 and IC 2602
Marsden, S. C., Carter, B. D. and Donati, J.-F.. 2009. "The chromospheric emission of solar-type stars in the young open clusters IC 2391 and IC 2602." Monthly Notices of the Royal Astronomical Society. 399 (2), pp. 888-905. https://doi.org/10.1111/j.1365-2966.2009.15319.x
Surface magnetic fields on two accreting T Tauri stars: CV Cha and CR Cha
Hussain, G. A. J., Collier Cameron, A., Jardine, M. M., Dunstone, N., Ramirez Velez, J., Stempels, H. C., Donati, J.-F., Semel, M., Aulanier, G., Harries, T., Bouvier, J., Dougados, C., Ferreira, J., Carter, B. D. and Lawson, W. A.. 2009. "Surface magnetic fields on two accreting T Tauri stars: CV Cha and CR Cha." Monthly Notices of the Royal Astronomical Society. 398 (1), pp. 189-200. https://doi.org/10.1111/j.1365-2966.2009.14881.x
Doppler images and chromospheric variability of TWA 6
Skelly, M. B., Unruh, Y. C., Cameron, A. Collier, Barnes, J. R., Donati, J.-F., Lawson, W. A. and Carter, B. D.. 2008. "Doppler images and chromospheric variability of TWA 6." Monthly Notices of the Royal Astronomical Society. 385 (2), pp. 708-718. https://doi.org/10.1111/j.1365-2966.2008.12917.x
Surface differential rotation and photospheric magnetic field of the young solar-type star HD 171488 (V889 Her)
Marsden, S. C., Donati, J.-F., Semel, M., Petit, P. and Carter, B. D.. 2006. "Surface differential rotation and photospheric magnetic field of the young solar-type star HD 171488 (V889 Her)." Monthly Notices of the Royal Astronomical Society. 370 (1), pp. 468-476. https://doi.org/10.1111/j.1365-2966.2006.10503.x
The magnetic activity of young suns: magnetic topologies and differential rotation of F- and G- dwarfs
Marsden, S. C., Mengel, M. W., Donati, J.-F., Carter, B. D., Semel, M. and Petit, P.. 2006. "The magnetic activity of young suns: magnetic topologies and differential rotation of F- and G- dwarfs." Casini, R. and Lites, B. W. (ed.) 4th Solar Polarization Workshop. Boulder, United States 19 - 23 Sep 2005 San Francisco, United States.
Doppler imaging and surface differential rotation of young open cluster stars - I. HD 307938 (R58) in IC 2602
Marsden, S. C., Waite, I. A., Carter, B. D. and Donati, J.-F.. 2005. "Doppler imaging and surface differential rotation of young open cluster stars - I. HD 307938 (R58) in IC 2602." Monthly Notices of the Royal Astronomical Society. 359 (2), pp. 711-724. https://doi.org/10.1111/j.1365-2966.2005.08946.x
Doppler imaging of G-dwarfs in two young open clusters
Marsden, S. C., Waite, I. A., Carter, B. D. and Donati, J. -F.. 2004. "Doppler imaging of G-dwarfs in two young open clusters." Astronomische Nachrichten. 325 (3), p. 246. https://doi.org/10.1002/asna.200310217
Stellar magnetic fields in swollen convection zones
Marsden, S. C., Donati, J. -F., Petit, P., Dunstone, N. J., Jardine, M., Carter, B. D., Waite, I. A., Semel, M. and Ramirez, J.. 2009. "Stellar magnetic fields in swollen convection zones." Berdyugina, Svetlana V., Nagendra, K. N. and Ramelli, Renzo (ed.) Astronomical Society of the Pacific Conference(SPW5): 5th Solar Polarization Workshop: a Workshop In Honor of Jan Olof Stenflo. Ascona, Switzerland 17 - 21 Sep 2007 San Francisco, CA. United States.
The photospheric magnetic field and coronal structure of HD171488
Marsden, S. C., Jardine, M., Donati, J.-F., Petit, P., Semel, M. and Carter, B. D.. 2007. "The photospheric magnetic field and coronal structure of HD171488." Memorie della Societa Astronomica Italiana. 78, pp. 307-310.
A radio and optical study of the active young F star HR 1817 (=HD 35850)
Budding, E., Carter, B. D., Mengel, M. W., Slee, O. B. and Donati, J. -F.. 2002. "A radio and optical study of the active young F star HR 1817 (=HD 35850)." Publications of the Astronomical Society of Australia. 19 (4), pp. 527-533. https://doi.org/10.1071/AS02021
Surface differential rotation and prominences of the Lupus post T Tauri star RX J1508.6-4423
Donati, J.-F., Mengel, M., Carter, B. D., Marsden, S., Collier Cameron, A. and Wichmann, R.. 2000. "Surface differential rotation and prominences of the Lupus post T Tauri star RX J1508.6-4423." Monthly Notices of the Royal Astronomical Society. 316 (3), pp. 699-715. https://doi.org/10.1046/j.1365-8711.2000.03570.x