The role of turbulent pressure as a coherent pulsational driving mechanism: The case of the δ SCUTI STAR HD 187547

Article


Antoci, V., Cunha, M., Houdek, G., Kjeldsen, H., Trampedach, R., Handler, G., Luftinger, T., Arentoft, T. and Murphy, S.. 2014. "The role of turbulent pressure as a coherent pulsational driving mechanism: The case of the δ SCUTI STAR HD 187547." The Astrophysical Journal: an international review of astronomy and astronomical physics. 796 (2), pp. 1-8. https://doi.org/10.1088/0004-637X/796/2/118
Article Title

The role of turbulent pressure as a coherent pulsational driving mechanism: The case of the δ SCUTI STAR HD 187547

ERA Journal ID1057
Article CategoryArticle
AuthorsAntoci, V. (Author), Cunha, M. (Author), Houdek, G. (Author), Kjeldsen, H. (Author), Trampedach, R. (Author), Handler, G. (Author), Luftinger, T. (Author), Arentoft, T. (Author) and Murphy, S. (Author)
Journal TitleThe Astrophysical Journal: an international review of astronomy and astronomical physics
Journal Citation796 (2), pp. 1-8
Article Number118
Number of Pages8
Year2014
PublisherIOP Publishing
Place of PublicationUnited States
ISSN0004-637X
1538-4357
Digital Object Identifier (DOI)https://doi.org/10.1088/0004-637X/796/2/118
Web Address (URL)https://iopscience.iop.org/article/10.1088/0004-637X/796/2/118
Abstract

HD 187547 was the first candidate that led to the suggestion that solar-like oscillations are present in δ Scuti stars. Longer observations, however, show that the modes interpreted as solar-like oscillations have either very long mode lifetimes, longer than 960 days, or are coherent. These results are incompatible with the nature of 'pure' stochastic excitation as observed in solar-like stars. Nonetheless, one point is certain: the opacity mechanism alone cannot explain the oscillation spectrum of HD 187547. Here we present new theoretical investigations showing that convection dynamics can intrinsically excite coherent pulsations in the chemically peculiar δ Scuti star HD 187547. More precisely, it is the perturbations of the mean Reynold stresses (turbulent pressure) that drives the pulsations and the excitation takes place predominantly in the hydrogen ionization zone.

KeywordsAsteroseismology; Convection; Stars: individual (HD 187546); Stars: oscillations; Stars: variables: delta Scuti
ANZSRC Field of Research 2020510109. Stellar astronomy and planetary systems
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Byline AffiliationsAarhus University, Denmark
University of Porto, Portugal
Nicolaus Copernicus Astronomical Center, Poland
University of Vienna, Austria
University of Sydney
Institution of OriginUniversity of Southern Queensland
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A new asteroseismic diagnostic for internal rotation in γ Doradus stars
Ouazzani, Rhita-Maria, Salmon, S. J. A. J., Antoci, V., Bedding, T. R., Murphy, S. J. and Roxburgh, I. W.. 2016. "A new asteroseismic diagnostic for internal rotation in γ Doradus stars." Monthly Notices of the Royal Astronomical Society. 465 (2), pp. 2294-2309. https://doi.org/10.1093/mnras/stw2717
Spectroscopic survey of Kepler stars – II. FIES/NOT observations of A- and F-type stars
Niemczura, E., Polinska, M., Murphy, S. J., Smalley, B., Kolaczkowski, Z., Jessen-Hansen, J., Uytterhoeven, K., Lykke, J. M., Trivino Hage, A. and Michalska, G.. 2017. "Spectroscopic survey of Kepler stars – II. FIES/NOT observations of A- and F-type stars." Monthly Notices of the Royal Astronomical Society. 470 (3), pp. 2870-2889. https://doi.org/10.1093/mnras/stx1256
Metal-rich SX Phe stars in the Kepler field
Nemec, James M., Balona, Luis A., Murphy, Simon J., Kinemuchi, Karen and Jeon, Young-Beom. 2016. "Metal-rich SX Phe stars in the Kepler field." Monthly Notices of the Royal Astronomical Society. 466 (2), pp. 1290-1329. https://doi.org/10.1093/mnras/stw3072
Finding binaries from phase modulation of pulsating stars with Kepler – IV. Detection limits and radial velocity verification
Murphy, Simon J., Shibahashi, Hiromoto and Bedding, Timothy R.. 2016. "Finding binaries from phase modulation of pulsating stars with Kepler – IV. Detection limits and radial velocity verification." Monthly Notices of the Royal Astronomical Society. 461 (4), pp. 4215-4226. https://doi.org/10.1093/mnras/stw1622
Gaia's view of the λ Boo star puzzle
Murphy, Simon J. and Paunzen, Ernst. 2016. "Gaia's view of the λ Boo star puzzle." Monthly Notices of the Royal Astronomical Society. 466 (1), pp. 546-555. https://doi.org/10.1093/mnras/stw3141
Near-uniform internal rotation of the main-sequence γ Doradus pulsator KIC 7661054
Murphy, Simon J., Fossati, Luca, Bedding, Timothy R., Saio, Hideyuki, Kurtz, Donald W., Grassitelli, Luca and Wang, Edric S.. 2016. "Near-uniform internal rotation of the main-sequence γ Doradus pulsator KIC 7661054." Monthly Notices of the Royal Astronomical Society. 459 (2), pp. 1201-1212. https://doi.org/10.1093/mnras/stw705
A Planet in an 840 Day Orbit around a Kepler Main-sequence A Star Found from Phase Modulation of Its Pulsations
Murphy, Simon J., Bedding, Timothy R. and Shibahashi, Hiromoto. 2016. "A Planet in an 840 Day Orbit around a Kepler Main-sequence A Star Found from Phase Modulation of Its Pulsations." The Astrophysical Journal Letters. 827 (1), pp. 1-4. https://doi.org/10.3847/2041-8205/827/1/L17
Modelling Kepler red giants in eclipsing binaries: calibrating the mixing-length parameter with asteroseismology
Li, Tanda, Bedding, Timothy R., Huber, Daniel, Ball, Warrick H., Stello, Dennis, Murphy, Simon J. and Bland-Hawthorn, Joss. 2017. "Modelling Kepler red giants in eclipsing binaries: calibrating the mixing-length parameter with asteroseismology." Monthly Notices of the Royal Astronomical Society. 475 (1), pp. 981-998. https://doi.org/10.1093/mnras/stx3079
HD 24355 observed by the Kepler K2 mission: a rapidly oscillating Ap star pulsating in a distorted quadrupole mode
Holdsworth, Daniel L., Kurtz, Donald W., Smalley, Barry, Saio, Hideyuki, Handler, Gerald, Murphy, Simon J. and Lehmann, Holger. 2016. "HD 24355 observed by the Kepler K2 mission: a rapidly oscillating Ap star pulsating in a distorted quadrupole mode." Monthly Notices of the Royal Astronomical Society. 462 (1), pp. 876-892. https://doi.org/10.1093/mnras/stw1711
KIC 3749404: a heartbeat star with rapid apsidal advance indicative of a tertiary component
Hambleton, K., Kurtz, D. W., Prsa, A., Quinn, S. N., Fuller, J., Murphy, S. J., Thompson, S. E., Latham, D. W. and Shporer, A.. 2016. "KIC 3749404: a heartbeat star with rapid apsidal advance indicative of a tertiary component." Monthly Notices of the Royal Astronomical Society. 463 (2), pp. 1199-1212. https://doi.org/10.1093/mnras/stw1970
KIC 8164262: a heartbeat star showing tidally induced pulsations with resonant locking
Hambleton, K., Fuller, J., Thompson, S., Prsa, A., Kurtz, D. W., Shporer, A., Isaacson, H., Howard, A. W., Endl, M., Cochran, W. and Murphy, S. J.. 2017. "KIC 8164262: a heartbeat star showing tidally induced pulsations with resonant locking." Monthly Notices of the Royal Astronomical Society. 473 (4), pp. 5165-5176. https://doi.org/10.1093/mnras/stx2673
Detection of Solar-like Oscillations, Observational Constraints, and Stellar Models for θ Cyg, the Brightest Star Observed By the Kepler Mission
Guzik, J. A., Houdek, G., Chaplin, W. J., Smalley, B., Kurtz, D. W., Gilliland, R. L., Mullally, F., Rowe, J. F., Bryson, S. T., Still, M. D., Antoci, V., Appourchaux, T., Basu, S., Bedding, T. R., Benomar, O., Garcia, R. A., Huber, D., Kjeldsen, H., Latham, D. W., ..., Uytterhoeven, K.. 2016. "Detection of Solar-like Oscillations, Observational Constraints, and Stellar Models for θ Cyg, the Brightest Star Observed By the Kepler Mission." The Astrophysical Journal: an international review of astronomy and astronomical physics. 831 (1), pp. 171-22. https://doi.org/10.3847/0004-637X/831/1/17
Large amplitude change in spot-induced rotational modulation of the Kepler Ap star KIC 2569073
Drury, Jason A., Murphy, Simon J., Derekas, Aliz, Sodor, Adam, Stello, Dennis, Kuehn, Charles A., Bedding, Timothy R., Bognar, Zsofia, Szigeti, Laszlo, Szakats, Robert, Sarneczky, Krisztian and Molnar, Laszlo. 2017. "Large amplitude change in spot-induced rotational modulation of the Kepler Ap star KIC 2569073." Monthly Notices of the Royal Astronomical Society. 471 (3), pp. 3193-3199. https://doi.org/10.1093/mnras/stx1722
Binary star detectability in Kepler data from phase modulation of different types of oscillations
Compton, D. L., Bedding, T. R., Murphy, S. J. and Stello, D.. 2016. "Binary star detectability in Kepler data from phase modulation of different types of oscillations." Monthly Notices of the Royal Astronomical Society. 461 (2), pp. 1943-1949. https://doi.org/10.1093/mnras/stw1092
Amplitude modulation in δ Sct stars: statistics from an ensemble study of Kepler targets
Bowman, Dominic M., Kurtz, Donald W., Breger, Michel, Murphy, Simon J. and Holdsworth, Daniel L.. 2016. "Amplitude modulation in δ Sct stars: statistics from an ensemble study of Kepler targets." Monthly Notices of the Royal Astronomical Society. 460 (2), pp. 1970-1989. https://doi.org/10.1093/mnras/stw1153
Investigating the A-Type Stars Using Kepler Data
Murphy, Simon J.. 2013. Investigating the A-Type Stars Using Kepler Data. PhD Thesis Doctor of Philosophy. University of Central Lancashire.
Beyond the Kepler/K2 bright limit: variability in the seven brightest members of the Pleiades
White, T. R., Pope, B. J. S., Antoci, V., Papics, P. I., Aerts, C., Gies, D. R., Gordon, K., Huber, D., Schaefer, G. H., Aigrain, S., Albrecht, S., Barclay, T., Barentsen, G., Beck, P. G., Bedding, T. R., Andersen, M. Fredslund, Grundahl, F., Howell, S. B., Ireland, M. J., ..., Tuthill, P. G.. 2017. "Beyond the Kepler/K2 bright limit: variability in the seven brightest members of the Pleiades." Monthly Notices of the Royal Astronomical Society. 471 (3), pp. 2882-2901. https://doi.org/10.1093/mnras/stx1050
A window into δ Sct stellar interiors: understanding the eclipsing binary system TT Hor
Streamer, Margaret, Ireland, Michael J., Murphy, Simon J. and Bento, Joao. 2018. "A window into δ Sct stellar interiors: understanding the eclipsing binary system TT Hor." Monthly Notices of the Royal Astronomical Society. 480 (1), pp. 1372-1383. https://doi.org/10.1093/mnras/sty1881
An astrophysical interpretation of the remarkable g-mode frequency groups of the rapidly rotating γ Dor star, KIC 5608334
Saio, Hideyuki, Bedding, Timothy R., Kurtz, Donald W., Murphy, Simon J., Antoci, Victoria, Shibahashi, Hiromoto, Li, Gang and Takata, Masao. 2018. "An astrophysical interpretation of the remarkable g-mode frequency groups of the rapidly rotating γ Dor star, KIC 5608334." Monthly Notices of the Royal Astronomical Society. 477 (2), pp. 2183-2195. https://doi.org/10.1093/mnras/sty784
Finding binaries from phase modulation of pulsating stars with Kepler: V. Orbital parameters, with eccentricity and mass-ratio distributions of 341 new binaries
Murphy, Simon J., Moe, Maxwell, Kurtz, Donald W., Bedding, Timothy R., Shibahashi, Hiromoto and Boffin, Henri M. J.. 2017. "Finding binaries from phase modulation of pulsating stars with Kepler: V. Orbital parameters, with eccentricity and mass-ratio distributions of 341 new binaries." Monthly Notices of the Royal Astronomical Society. 474 (4), pp. 4322-4346. https://doi.org/10.1093/mnras/stx3049
Asteroseismology of KIC 7107778: a binary comprising almost identical subgiants
Li, Yaguang, Bedding, Timothy R., Li, Tanda, Bi, Shaolan, Murphy, Simon J., Corsaro, Enrico, Chen, Li and Tian, Zhijia. 2018. "Asteroseismology of KIC 7107778: a binary comprising almost identical subgiants." Monthly Notices of the Royal Astronomical Society. 476 (1), pp. 470-481. https://doi.org/10.1093/mnras/sty222
A spectroscopic and photometric investigation of the mercury–manganese star KIC 6128830
Hummerich, Stefan, Niemczura, Ewa, Walczak, Przemysław, Paunzen, Ernst, Bernhard, Klaus, Murphy, Simon J. and Drobek, Dominik. 2017. "A spectroscopic and photometric investigation of the mercury–manganese star KIC 6128830." Monthly Notices of the Royal Astronomical Society. 474 (2), pp. 2467-2478. https://doi.org/10.1093/mnras/stx2974
An Evaluation of the Membership Probability of 212 λ Boo Stars. I. A Catalogue
Murphy, Simon J., Corbally, Christopher J., Gray, Richard O., Cheng, Kwang-Ping, Neff, James E., Koen, Chris, Kuehn, Charles A., Newsome, Ian and Riggs, Quinlin. 2015. "An Evaluation of the Membership Probability of 212 λ Boo Stars. I. A Catalogue." Publications of the Astronomical Society of Australia. 32, pp. 1-43. https://doi.org/10.1017/pasa.2015.34
Echelle diagrams and period spacings of g modes in γ Doradus stars from four years of Kepler observations
Bedding, Timothy R., Murphy, Simon J., Colman, Isabel L. and Kurtz, Donald W.. 2015. "Echelle diagrams and period spacings of g modes in γ Doradus stars from four years of Kepler observations." Garcia, R. A. and Ballot, J. (ed.) EPJ Web of Conferences: Space Photometry Revolution – CoRoT Symposium 3 (2015). Toulouse, France 06 - 11 Jul 2014 France. https://doi.org/10.1051/epjconf/201510101005
Kepler Fourier concepts: The performance of the Kepler data pipeline
Murphy, S. J.. 2012. "Kepler Fourier concepts: The performance of the Kepler data pipeline." Astronomische Nachrichten. 333 (10), pp. 1057-1060. https://doi.org/10.1002/asna.201211804
The TESS Objects of Interest Catalog from the TESS Prime Mission
Guerrero, Natalia M., Seager, S., Huang, Chelsea X., Vanderburg, Andrew, Soto, Aylin Garcia, Mireles, Ismael, Hesse, Katharine, Fong, William, Glidden, Ana, Shporer, Avi, Latham, David W., Collins, Karen A., Quinn, Samuel N., Burt, Jennifer, Dragomir, Diana, Crossfield, Ian, Vanderspek, Roland, Fausnaugh, Michael, Burke, Christopher J., ..., Winn, Joshua N.. 2021. "The TESS Objects of Interest Catalog from the TESS Prime Mission." Astrophysical Journal Supplement Series. 254 (2), pp. 1-29. https://doi.org/10.3847/1538-4365/abefe1
The atmosphere of WASP-17b: Optical high-resolution transmission spectroscopy
Khalafinejad, Sara, Salz, Michael, Cubillos, Patricio E., Zhou, George, von Essen, Carolina, Husser, Tim-Oliver, Bayliss, Daniel D. R., Lopez-Morales, Mercedes, Dreizler, Stefan, Schmitt, Jurgen H. M. M. and Luftinger, Theresa. 2018. "The atmosphere of WASP-17b: Optical high-resolution transmission spectroscopy." Astronomy and Astrophysics: a European journal. 618, pp. 1-13. https://doi.org/10.1051/0004-6361/201732029
TOI-1431b/MASCARA-5b: A Highly Irradiated Ultrahot Jupiter Orbiting One of the Hottest and Brightest Known Exoplanet Host Stars
Addison, Brett C., Knudstrup, Emil, Wong, Ian, Hebrard, Guillaume, Dorval, Patrick, Snellen, Ignas, Albrecht, Simon, Bello-Arufe, Aaron, Almenara, Jose-Manuel, Boisse, Isabelle, Bonfils, Xavier, Dalal, Shweta, Demangeon, Olivier D. S., Hoyer, Sergio, Kiefer, Flavien, Santos, N. C., Nowak, Grzegorz, Luque, Rafael, Stangret, Monika, ..., McLean, Brian. 2021. "TOI-1431b/MASCARA-5b: A Highly Irradiated Ultrahot Jupiter Orbiting One of the Hottest and Brightest Known Exoplanet Host Stars." The Astronomical Journal. 162 (6), pp. 1-29. https://doi.org/10.3847/1538-3881/ac224e
The ANU WiFeS SuperNovA Programme (AWSNAP)
Childress, Michael J., Tucker, Brad E., Yuan, Fang, Scalzo, Richard, Ruiter, Ashley, Seitenzahl, Ivo, Zhang, Bonnie, Schmidt, Brian, Anguiano, Borja, Aniyan, Suryashree, Bayliss, Daniel D. R., Bento, Joao, Bessell, Michael, Bian, Fuyan, Davies, Rebecca, Dopita, Michael, Fogarty, Lisa, Fraser-McKelvie, Amelia, Freeman, Ken, ..., Zhou, George. 2016. "The ANU WiFeS SuperNovA Programme (AWSNAP)." Publications of the Astronomical Society of Australia. 33, pp. 1-29. https://doi.org/10.1017/pasa.2016.47
Planetary candidates observed by Kepler. III. Analysis of the first 16 months of data
Batalha, Natalie M., Rowe, Jason F., Bryson, Stephen T., Barclay, Thomas, Burke, Christopher J., Caldwell, Douglas A., Christiansen, Jessie L., Mullally, Fergal, Thompson, Susan E., Brown, Timothy M., Dupree, Andrea K., Fabrycky, Daniel C., Ford, Eric B., Fortney, Jonathan J., Gilliland, Ronald L., Isaacson, Howard, Latham, David W., Marcy, Geoffrey W., Quinn, Samuel N., ..., Welsh, William F.. 2013. "Planetary candidates observed by Kepler. III. Analysis of the first 16 months of data." Astrophysical Journal Supplement Series. 204 (2), pp. 24-44. https://doi.org/10.1088/0067-0049/204/2/24
Characteristics of Kepler planetary candidates based on the first data set
Borucki, William J., Koch, David G., Basri, Gibor, Batalha, Natalie, Boss, Alan, Brown, Timothy M., Caldwell, Douglas, Christensen-Dalsgaard, Jorgen, Cochran, William D., DeVore, Edna, Dunham, Edward W., Dupree, Andrea K., Gautier, Thomas N., Geary, John C., Gilliland, Ronald, Gould, Alan, Howell, Steve B., Jenkins, Jon M., Kjeldsen, Hans, ..., Wu, Hayley. 2011. "Characteristics of Kepler planetary candidates based on the first data set." The Astrophysical Journal: an international review of astronomy and astronomical physics. 728 (2), pp. 117-136. https://doi.org/10.1088/0004-637X/728/2/117
Characteristics of planetary candidates observed by Kepler. II. Analysis of the first four months of data
Borucki, William J., Koch, David G., Bryson, Stephen T., Lissauer, Jack J., Rowe, Jason, Haas, Michael, Basri, Gibor, Marcy, Geoffrey W., Howard, Andrew, Isaacson, Howard, Walkowicz, Lucianne, Batalha, Natalie, Brown, Timothy M., Shporer, Avi, Caldwell, Douglas, DeVore, Edna, Jenkins, Jon M., Doyle, Laurance, Tarter, Jill, ..., Prsa, Andrej. 2011. "Characteristics of planetary candidates observed by Kepler. II. Analysis of the first four months of data." The Astrophysical Journal: an international review of astronomy and astronomical physics. 736 (1). https://doi.org/10.1088/0004-637X/736/1/19
Kepler-22b: a 2.4 earth-radius planet in the habitable zone of a sun-like star
Borucki, William J., Koch, David G., Batalha, Natalie, Bryson, Stephen T., Rowe, Jason, Fressin, Francois, Torres, Guillermo, Caldwell, Douglas A., Christensen-Dalsgaard, Jorgen, Cochran, William D., DeVore, Edna, Gautier, Thomas N., Geary, John C., Gilliland, Ronald, Gould, Alan, Howell, Steve B., Jenkins, Jon M., Latham, David W., Lissauer, Jack J., ..., Rapin, William. 2012. "Kepler-22b: a 2.4 earth-radius planet in the habitable zone of a sun-like star." The Astrophysical Journal: an international review of astronomy and astronomical physics. 745 (2), pp. 120-135. https://doi.org/10.1088/0004-637X/745/2/120
KEPLER-21b: a 1.6 REarth planet transiting the bright oscillating F subgiant star HD179070
Howell, Steve B., Rowe, Jason F., Bryson, Stephen T., Quinn, Samuel N., Marcy, Geoffrey W., Isaacson, Howard, Ciardi, David R., Chaplin, William J., Metcalfe, Travis S., Monteiro, Mario J. P. F. G., Appourchaux, Thierry, Basu, Sarbani, Creevey, Orlagh L., Gilliland, Ronald L., Quirion, Pierre Olivier, Stello, Denis, Kjeldsen, Hans, Christensen-Dalsgaard, Jorgen, Elsworth, Yvonne, ..., Henze, Christopher E.. 2012. "KEPLER-21b: a 1.6 REarth planet transiting the bright oscillating F subgiant star HD179070." The Astrophysical Journal: an international review of astronomy and astronomical physics. 746 (2), pp. 123-140. https://doi.org/10.1088/0004-637X/746/2/123
Kepler's first rocky planet: Kepler-10b
Batalha, Natalie M., Borucki, William J., Bryson, Stephen T., Buchhave, Lars A., Caldwell, Douglas A., Christensen-Dalsgaard, Jorgen, Ciardi, David, Dunham, Edward W., Fressin, Francois, Gautier, Thomas N., Gilliland, Ronald L., Haas, Michael R., Howell, Steve B., Jenkins, Jon M., Kjeldsen, Hans, Koch, David G., Latham, David W., Lissauer, Jack J., Marcy, Geoffrey W., ..., Gould, Alan. 2011. "Kepler's first rocky planet: Kepler-10b." The Astrophysical Journal: an international review of astronomy and astronomical physics. 729 (1), pp. 27-47. https://doi.org/10.1088/0004-637X/729/1/27
Planet occurrence within 0.25AU of solar-type stars from Kepler
Howard, Andrew W., Marcy, Geoffrey W., Bryson, Stephen T., Jenkins, Jon M., Rowe, Jason F., Batalha, Natalie M., Borucki, William J., Koch, David G., Dunham, Edward W., Gautier, Thomas N., Van Cleve, Jeffrey, Cochran, William D., Latham, David W., Lissauer, Jack J., Torres, Guillermo, Brown, Timothy M., Gilliland, Ronald L., Buchhave, Lars A., Caldwell, Douglas A., ..., MacQueen, Phillip J.. 2012. "Planet occurrence within 0.25AU of solar-type stars from Kepler." Astrophysical Journal Supplement Series. 201 (2), pp. 15-34. https://doi.org/10.1088/0067-0049/201/2/15
Transit timing observations from Kepler. VI. Potentially interesting candidate systems from fourier-based statistical tests
Steffen, Jason H., Ford, Eric B., Rowe, Jason F., Fabrycky, Daniel C., Holman, Matthew J., Welsh, William F., Batalha, Natalie M., Borucki, William J., Bryson, Steve, Caldwell, Douglas A., Ciardi, David R., Jenkins, Jon M., Kjeldsen, Hans, Koch, David G., Prsa, Andrej, Sanderfer, Dwight T., Seader, Shawn and Twicken, Joseph D.. 2012. "Transit timing observations from Kepler. VI. Potentially interesting candidate systems from fourier-based statistical tests." The Astrophysical Journal: an international review of astronomy and astronomical physics. 756 (2), pp. 186-190. https://doi.org/10.1088/0004-637X/756/2/186
Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets
Marcy, Geoffrey W., Isaacson, Howard, Howard, Andrew W., Rowe, Jason F., Jenkins, Jon M., Bryson, Stephen T., Latham, David W., Howell, Steve B., Gautier, Thomas N., Batalha, Natalie M., Rogers, Leslie, Ciardi, David, Fischer, Debra A., Gilliland, Ronald L., Kjeldsen, Hans, Christensen-Dalsgaard, Jorgen, Huber, Daniel, Chaplin, William J., Basu, Sarbani, ..., Barrado, David. 2014. "Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets." Astrophysical Journal Supplement Series. 210 (2), pp. 20-89. https://doi.org/10.1088/0067-0049/210/2/20
Kepler-432: a red giant interacting with one of its two long-period giant planets
Quinn, Samuel N., White, Timothy R., Latham, David W., Chaplin, William J., Handberg, Rasmus, Huber, Daniel, Kipping, David M., Payne, Matthew J., Jiang, Chen, Aguirre, Victor Silva, Stello, Dennis, Sliski, David H., Ciardi, David R., Buchhave, Lars A., Bedding, Timothy R., Davies, Guy R., Hekker, Saskia, Kjeldsen, Hans, Kuszlewicz, James S., ..., Berlind, Perry. 2015. "Kepler-432: a red giant interacting with one of its two long-period giant planets." The Astrophysical Journal: an international review of astronomy and astronomical physics. 803 (2), pp. 49-69. https://doi.org/10.1088/0004-637X/803/2/49
A sub-Mercury-sized exoplanet
Barclay, Thomas, Rowe, Jason F., Lissauer, Jack J., Huber, Daniel, Fressin, Francois, Howell, Steve B., Bryson, Stephen T., Chaplin, William J., Desert, Jean Michel, Lopez, Eric D., Marcy, Geoffrey W., Mullally, Fergal, Ragozzine, Darin, Torres, Guillermo, Adams, Elisabeth R., Agol, Eric, Barrado, David, Basu, Sarbani, Bedding, Timothy R., ..., Thompson, Susan E.. 2013. "A sub-Mercury-sized exoplanet." Nature. 494 (7438), pp. 452-454. https://doi.org/10.1038/nature11914
Kepler-62: A five-planet system with planets of 1.4 and 1.6 Earth radii in the habitable zone
Borucki, William J., Agol, Eric, Fressin, Francois, Kaltenegger, Lisa, Rowe, Jason, Isaacson, Howard, Fischer, Debra, Batalha, Natalie, Lissauer, Jack J., Marcy, Geoffrey W., Fabrycky, Daniel, Desert, Jean Michel, Bryson, Stephen T., Barclay, Thomas, Bastien, Fabienne, Boss, Alan, Brugamyer, Erik, Buchhave, Lars A., Burke, Chris, ..., Winn, Joshua N.. 2013. "Kepler-62: A five-planet system with planets of 1.4 and 1.6 Earth radii in the habitable zone." Science. 340 (6132), pp. 587-590. https://doi.org/10.1126/science.1234702
KIC 4768731: a bright long-period roAp star in the Kepler field
Smalley, B., Niemczura, E., Murphy, S. J., Lehmann, H., Kurtz, D. W., Holdsworth, D. L., Cunha, M. S., Balona, L. A., Briquet, M., Bruntt, H., De Cat, P., Lampens, P., Thygesen, A. O. and Uytterhoeven, K.. 2015. "KIC 4768731: a bright long-period roAp star in the Kepler field." Monthly Notices of the Royal Astronomical Society. 452 (4), pp. 3334-3345. https://doi.org/10.1093/mnras/stv1515
FM stars II: a Fourier view of pulsating binary stars – determining binary orbital parameters photometrically for highly eccentric cases
Shibahashi, Hiromoto, Kurtz, Donald W. and Murphy, Simon J.. 2015. "FM stars II: a Fourier view of pulsating binary stars – determining binary orbital parameters photometrically for highly eccentric cases." Monthly Notices of the Royal Astronomical Society. 450 (4), pp. 3999-4015. https://doi.org/10.1093/mnras/stv875
KIC 10080943: An eccentric binary system containing two pressure- and gravity-mode hybrid pulsators
Schmid, V. S., Tkachenko, A., Aerts, C., Degroote, P., Bloemen, S., Murphy, S. J., Van Reeth, T., Papics, P. I., Bedding, T. R., Keen, M. A., Prsa, A., Menu, J., Debosscher, J., Hrudkova, M., De Smedt, K., Lombaert, R. and Nemeth, P.. 2015. "KIC 10080943: An eccentric binary system containing two pressure- and gravity-mode hybrid pulsators." Astronomy and Astrophysics: a European journal. 584, pp. 1-22. https://doi.org/10.1051/0004-6361/201526945
Asteroseismic measurement of slow, nearly uniform surface-to-core rotation in the main-sequence F star KIC 9244992
Saio, Hideyuki, Kurtz, Donald W., Takata, Masao, Shibahashi, Hiromoto, Murphy, Simon J., Sekii, Takashi and Bedding, Timothy R.. 2015. "Asteroseismic measurement of slow, nearly uniform surface-to-core rotation in the main-sequence F star KIC 9244992." Monthly Notices of the Royal Astronomical Society. 447 (4), pp. 3264-3277. https://doi.org/10.1093/mnras/stu2696
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
Spectroscopic survey of Kepler stars. I. HERMES/Mercator observations of A- and F-type stars
Niemczura, E., Murphy, S. J., Smalley, B., Uytterhoeven, K., Pigulski, A., Lehmann, H., Bowman, D. M., Catanzaro, G., van Aarle, E., Bloemen, S., Briquet, M., De Cat, P., Drobek, D., Eyer, L., Gameiro, J. F. S., Gorlova, N., Kaminski, K., Lampens, P., Marcos-Arenal, P., ..., Fagas, M.. 2015. "Spectroscopic survey of Kepler stars. I. HERMES/Mercator observations of A- and F-type stars." Monthly Notices of the Royal Astronomical Society. 450 (3), pp. 2764-2783. https://doi.org/10.1093/mnras/stv528
Deriving the orbital properties of pulsators in binary systems through their light arrival time delays
Murphy, Simon J. and Shibahashi, Hiromoto. 2015. "Deriving the orbital properties of pulsators in binary systems through their light arrival time delays." Monthly Notices of the Royal Astronomical Society. 450 (4), pp. 4475-4485. https://doi.org/10.1093/mnras/stv884
A search for non-pulsating, chemically normal stars in the δ Scuti instability strip using Kepler data
Murphy, Simon J., Bedding, Timothy R., Niemczura, Ewa, Kurtz, Donald W. and Smalley, Barry. 2015. "A search for non-pulsating, chemically normal stars in the δ Scuti instability strip using Kepler data." Monthly Notices of the Royal Astronomical Society. 447 (4), pp. 3948-3959. https://doi.org/10.1093/mnras/stu2749
The potential for super-Nyquist asteroseismology with TESS
Murphy, Simon J.. 2015. "The potential for super-Nyquist asteroseismology with TESS." Monthly Notices of the Royal Astronomical Society. 453 (3), pp. 2569-2575. https://doi.org/10.1093/mnras/stv1842
A unifying explanation of complex frequency spectra of γ Dor, SPB and Be stars: combination frequencies and highly non-sinusoidal light curves
Kurtz, Donald W., Shibahashi, Hiromoto, Murphy, Simon J., Bedding, Timothy R. and Bowman, Dominic M.. 2015. "A unifying explanation of complex frequency spectra of γ Dor, SPB and Be stars: combination frequencies and highly non-sinusoidal light curves." Monthly Notices of the Royal Astronomical Society. 450 (3), pp. 3015-3029. https://doi.org/10.1093/mnras/stv868
KIC 10080943: a binary star with two γ Doradus/δ Scuti hybrid pulsators. Analysis of the g modes
Keen, M. A., Bedding, T. R., Murphy, S. J., Schmid, V. S., Aerts, C., Tkachenko, A., Ouazzani, R. M. and Kurtz, D. W.. 2015. "KIC 10080943: a binary star with two γ Doradus/δ Scuti hybrid pulsators. Analysis of the g modes." Monthly Notices of the Royal Astronomical Society. 454 (2), pp. 1792-1797. https://doi.org/10.1093/mnras/stv2107
A 0.24+0.18 M double-lined eclipsing binary from the HATSouth survey
Zhou, G., Bayliss, D., Hartman, J. D., Rabus, M., Bakos, G. A., Jordan, A., Brahm, R., Penev, K., Csubry, Z., Mancini, L., Espinoza, N., de Val-Borro, M., Bhatti, W., Ciceri, S., Henning, T., Schmidt, B., Murphy, S. J., Butler, R. P., Arriagada, P., ..., Noyes, R. W.. 2015. "A 0.24+0.18 M double-lined eclipsing binary from the HATSouth survey." Monthly Notices of the Royal Astronomical Society. 451 (3), pp. 2263-2277. https://doi.org/10.1093/mnras/stv1070
Finding binaries among Kepler pulsating stars from phase modulation of their pulsations
Murphy, Simon J., Bedding, Timothy R., Shibahashi, Hiromoto, Kurtz, Donald W. and Kjeldsen, Hans. 2014. "Finding binaries among Kepler pulsating stars from phase modulation of their pulsations." Monthly Notices of the Royal Astronomical Society. 441 (3), pp. 2515-2527. https://doi.org/10.1093/mnras/stu765
Asteroseismic measurement of surface-to-core rotation in a main-sequence A star, KIC 11145123
Kurtz, Donald W., Saio, Hideyuki, Takata, Masao, Shibahashi, Hiromoto, Murphy, Simon J. and Sekii, Takashi. 2014. "Asteroseismic measurement of surface-to-core rotation in a main-sequence A star, KIC 11145123." Monthly Notices of the Royal Astronomical Society. 444 (1), pp. 102-116. https://doi.org/10.1093/mnras/stu1329
Validation of the frequency modulation technique applied to the pulsating δ Sct–γ Dor eclipsing binary star KIC 8569819
Kurtz, Donald W., Hambleton, Kelly M., Shibahashi, Hiromoto, Murphy, Simon J. and Prsa, Andrej. 2014. "Validation of the frequency modulation technique applied to the pulsating δ Sct–γ Dor eclipsing binary star KIC 8569819." Monthly Notices of the Royal Astronomical Society. 446 (2), pp. 1223-1233. https://doi.org/10.1093/mnras/stu2075
Evolution from protoplanetary to debris discs: the transition disc around HD 166191
Kennedy, G. M., Murphy, S. J., Lisse, C. M., Menard, F., Sitko, M. L., Wyatt, M. C., Bayliss, D. D. R., DeMeo, F. E., Crawford, K. B., Kim, D. L., Rudy, R. J., Russell, R. W., Sibthorpe, B., Skinner, M. A. and Zhou, G.. 2014. "Evolution from protoplanetary to debris discs: the transition disc around HD 166191." Monthly Notices of the Royal Astronomical Society. 438 (4), pp. 3299-3309. https://doi.org/10.1093/mnras/stt2435
Super-Nyquist asteroseismology with the Kepler Space Telescope
Murphy, Simon J., Shibahashi, Hiromoto and Kurtz, Donald W.. 2013. "Super-Nyquist asteroseismology with the Kepler Space Telescope." Monthly Notices of the Royal Astronomical Society. 430 (4), pp. 2986-2998. https://doi.org/10.1093/mnras/stt105
Asteroseismology of KIC 11754974: a high-amplitude SX Phe pulsator in a 343-d binary system
Murphy, S. J., Pigulski, A., Kurtz, D. W., Suarez, J. C., Handler, G., Balona, L. A., Smalley, B., Uytterhoeven, K., Szabo, R., Thygesen, A. O., Elkin, V., Breger, M., Grigahcene, A., Guzik, J. A., Nemec, J. M. and Southworth, J.. 2013. "Asteroseismology of KIC 11754974: a high-amplitude SX Phe pulsator in a 343-d binary system." Monthly Notices of the Royal Astronomical Society. 432 (3), pp. 2284-2297. https://doi.org/10.1093/mnras/stt587
Erratum: Asteroseismology of KIC 11754974: a high-amplitude SX Phe pulsator in a 343-d binary system
Murphy, S. J., Pigulski, A., Kurtz, D. W., Suarez, J. C., Handler, G., Balona, L. A., Smalley, B., Uytterhoeven, K., Szabo, R., Thygesen, A. O., Elkin, V., Breger, M., Grigahcene, A., Guzik, J. A., Nemec, J. M. and Southworth, J.. 2013. "Erratum: Asteroseismology of KIC 11754974: a high-amplitude SX Phe pulsator in a 343-d binary system." Monthly Notices of the Royal Astronomical Society. 436 (3), pp. 2877-2877. https://doi.org/10.1093/mnras/stt1749
Pulsational amplitude growth of the star KIC 3429637 (HD 178875) in the context of Am and ρ Pup stars
Murphy, Simon J., Grigahcene, A., Niemczura, E., Kurtz, D. W. and Uytterhoeven, K.. 2012. "Pulsational amplitude growth of the star KIC 3429637 (HD 178875) in the context of Am and ρ Pup stars." Monthly Notices of the Royal Astronomical Society. 427 (2), pp. 1418-1428. https://doi.org/10.1111/j.1365-2966.2012.22062.x
An examination of some characteristics of Kepler short- and long-cadence data
Murphy, Simon J.. 2012. "An examination of some characteristics of Kepler short- and long-cadence data." Monthly Notices of the Royal Astronomical Society. 422 (1), pp. 665-671. https://doi.org/10.1111/j.1365-2966.2012.20644.x
Unusual high-frequency oscillations in the Kepler δ Scuti star KIC 4840675
Balona, L. A., Breger, M., Catanzaro, G., Cunha, M. S., Handler, G., Kolaczkowski, Z., Kurtz, D. W., Murphy, S., Niemczura, E., Paparo, M., Smalley, B., Szabo, R., Uytterhoeven, K., Christiansen, J. L., Uddin, K. and Stumpe, M. C.. 2012. "Unusual high-frequency oscillations in the Kepler δ Scuti star KIC 4840675." Monthly Notices of the Royal Astronomical Society. 424 (2), pp. 1187-1196. https://doi.org/10.1111/j.1365-2966.2012.21295.x
High-resolution magnetic field measurements of RR Lyrae stars with SemPol
Guggenberger, E., Kolenberg, K., Marsden, S. C., Waite, I. A., Henrichs, H. F. and Luftinger, T.. 2009. "High-resolution magnetic field measurements of RR Lyrae stars with SemPol." Guzik, Joyce Ann and Bradley, Paul A. (ed.) International Conference on Stellar Pulsation: Challenges for Theory and Observation (2009). Santa Fe, United States 31 May - 05 Jun 2009 Melville, NY. United States. AIP Publishing. https://doi.org/10.1063/1.3246492
The Kepler characterization of the variability among A- and F-type stars I. General overview
Uytterhoeven, K., Moya, A., Grigahcene, A., Guzik, J. A., Gutierrez-Soto, J., Smalley, B., Handler, G., Balona, L. A., Niemczura, E., Fox Machado, L., Benatti, S., Chapellier, E., Tkachenko, A., Szabo, R., Suarez, J. C., Ripepi, V., Pascual, J., Mathias, P., Martin-Ruiz, S., ..., Van Cleve, J.. 2011. "The Kepler characterization of the variability among A- and F-type stars I. General overview." Astronomy and Astrophysics: a European journal. 534. https://doi.org/10.1051/0004-6361/201117368