Centre for Astrophysics


Latest research outputs

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197 candidates and 104 validated planets in K2's first five fields
Crossfield, Ian J., Ciardi, David R., Petigura, Erik A., Sinukoff, Evan, Schlieder, Joshua E., Howard, Andrew W., Beichman, Charles A., Isaacson, Howard, Dressing, Courtney D., Christiansen, Jessie L., Fulton, Benjamin J., Lepine, Sebastien, Weiss, Lauren, Hirsch, Lea, Livingston, John, Baranec, Christoph, Law, Nicholas M., Riddle, Reed, Ziegler, Carl, ..., Defrere, Denis. 2016. "197 candidates and 104 validated planets in K2's first five fields." Astrophysical Journal Supplement Series. 226 (1), pp. 1-20. https://doi.org/10.3847/0067-0049/226/1/7

Article

3D Selection of 167 Substellar Companions to Nearby Stars
Feng, Fabo, Butler, R. Paul, Vogt, Steven S., Clement, Matthew S., Tinney, C. G., Cui, Kaiming, Aizawa, Masataka, Jones, Hugh R. A., Bailey, J., Burt, Jennifer, Carter B.D., Crane, Jeffrey D., Dotti, Francesco Flammini, Holden, Bradford, Ma, Bo, Ogihara, Masahiro, Oppenheimer, Rebecca, O'Toole, S. J., Shectman, Stephen A., ..., Xuan, Yifan. 2022. "3D Selection of 167 Substellar Companions to Nearby Stars." Astrophysical Journal Supplement Series. 262 (1). https://doi.org/10.3847/1538-4365/ac7e57

Article

55 Cancri: stellar astrophysical parameters, a planet in the habitable zone, and implications for the radius of a transiting super-earth
von Braun, Kaspar, Boyajian, Tabetha S., ten Brummelaar, Theo A., Kane, Stephen R., van Belle, Gerard T., Ciardi, David R., Raymond, Sean N., Lopez-Morales, Mercedes, McAlister, Harold A., Schaefer, Gail, Ridgway, Stephen T., Sturmann, Laszlo, Sturmann, Judit, White, Russel, Turner, Nils H., Farrington, Chris and Goldfinger, P. J.. 2011. "55 Cancri: stellar astrophysical parameters, a planet in the habitable zone, and implications for the radius of a transiting super-earth." The Astrophysical Journal: an international review of astronomy and astronomical physics. 740 (1), pp. 49-54. https://doi.org/10.1088/0004-637X/740/1/49

Article

A 12-year activity cycle for the nearby planet host star HD 219134
Johnson, Marshall C., Endl, Michael, Cochran, William D., Meschiari, Stefano, Robertson, Paul, MacQueen, Phillip J., Brugamyer, Erik J., Caldwell, Caroline, Hatzes, Artie P., Ramirez, Ivan and Wittenmyer, Robert A.. 2016. "A 12-year activity cycle for the nearby planet host star HD 219134." The Astrophysical Journal: an international review of astronomy and astronomical physics. 821 (2). https://doi.org/10.3847/0004-637X/821/2/74

Article

A 7 Day Multiwavelength Flare Campaign on AU Mic. I. High-time-resolution Light Curves and the Thermal Empirical Neupert Effect
Tristan, Isaiah I., Notsu, Yuta, Kowalski, Adam F., Brown, Alexander, Wisniewski, John P., Osten, Rachel A., Vrijmoet, Eliot H., White, Graeme L., Carter, Brad D., Grady, Carol A., Henry, Todd J., Hinojosa, Rodrigo H., Lomax, Jamie R., Neff, James E., Paredes, Leonardo A. and Soutter, Jack. 2023. "A 7 Day Multiwavelength Flare Campaign on AU Mic. I. High-time-resolution Light Curves and the Thermal Empirical Neupert Effect." The Astrophysical Journal: an international review of astronomy and astronomical physics. 951 (1). https://doi.org/10.3847/1538-4357/acc94f

Article

A catalog of Kepler habitable zone exoplanet candidates
Kane, Stephen R., Hill, Michelle L., Kasting, James F., Kopparapu, Ravi Kumar, Quintana, Elisa V., Barclay, Thomas, Batalha, Natalie M., Borucki, William J., Ciardi, David R., Haghighipour, Nader, Hinkel, Natalie R., Kaltenegger, Lisa, Selsis, Franck and Torres, Guillermo. 2016. "A catalog of Kepler habitable zone exoplanet candidates." The Astrophysical Journal: an international review of astronomy and astronomical physics. 830 (1), pp. 1-10. https://doi.org/10.3847/0004-637X/830/1/1

Article

A comparison of spectroscopic versus imaging techniques for detecting close companions to Kepler objects of interest
Teske, Johanna K., Everett, Mark E., Hirsch, Lea, Furlan, Elise, Horch, Elliott P., Howell, Steve B., Ciardi, David R., Gonzales, Erica and Crepp, Justin R.. 2015. "A comparison of spectroscopic versus imaging techniques for detecting close companions to Kepler objects of interest." The Astronomical Journal. 150 (5), pp. 144-164. https://doi.org/10.1088/0004-6256/150/5/144

Article

A crystallizing white dwarf in a sirius-like quadruple system
Venner, Alexander, Blouin, Simon, Bedard, Antoine and Vanderburg, Andrew. 2023. "A crystallizing white dwarf in a sirius-like quadruple system." Monthly Notices of the Royal Astronomical Society. 523 (3), pp. 4624-4642. https://doi.org/10.1093/mnras/stad1719

Article

A dearth of small particles in the transiting material around the white dwarf WD 1145+017
Xu, S., Rappaport, S., van Lieshout, R., Vanderburg, A., Gary, B., Hallakoun, N., Ivanov, V. D., Wyatt, M. C., DeVore, J., Bayliss, D., Bento, J., Bieryla, A., Cameron, A., Cann, J. M., Croll, B., Collins, K. A., Dalba, P. A., Debes, J., Doyle, D., ..., Zuckerman, B.. 2017. "A dearth of small particles in the transiting material around the white dwarf WD 1145+017." Monthly Notices of the Royal Astronomical Society. 474 (4), pp. 4795-4809. https://doi.org/10.1093/mnras/stx3023

Article

A Decade of Radial-velocity Monitoring of Vega and New Limits on the Presence of Planets
Hurt, Spencer A., Quinn, Samuel N., Latham, David W., Vanderburg, Andrew, Esquerdo, Gilbert A., Calkins, Michael L., Berlind, Perry, Angus, Ruth, Latham, Christian A. and Zhou, George. 2021. "A Decade of Radial-velocity Monitoring of Vega and New Limits on the Presence of Planets." The Astronomical Journal. 161 (4), pp. 1-14. https://doi.org/10.3847/1538-3881/abdec8

Article

A deep-learning search for technosignatures from 820 nearby stars
Ma, Peter Xiangyuan, Ng, Cherry, Rizk, Leandro, Croft, Steve, Siemion, Andrew P. V., Brzycki, Bryan, Czech, Daniel, Drew, Jamie, Gajjar, Vishal, Hoang, John, Isaacson, Howard, Lebofsky, Matt, MacMahon, David H. E., de Pater, Imke, Price, Danny C., Sheikh, Sofia Z. and Worden, S. Pete. 2023. "A deep-learning search for technosignatures from 820 nearby stars." Nature Astronomy. 7 (4), pp. 492-502. https://doi.org/10.1038/s41550-022-01872-z

Article

A dense mini-Neptune orbiting the bright young star HD 18599
Vines, Jose I., Jenkins, James S., Berdinas, Zaira, Soto, Maritza G., Diaz, Matias R., Alves, Douglas R., Tuomi, Mikko, Wittenmyer, Robert A., de Leon, Jerome Pitogo, Pena, Pablo, Lissauer, Jack J., Ballard, Sarah, Bedding, Timothy, Bowler, Brendan P., Horner, Jonathan, Jones, Hugh R. A., Kane, Stephen R., Kielkopf, John, Plavchan, Peter, ..., Samadi-Ghadim, Anya. 2022. "A dense mini-Neptune orbiting the bright young star HD 18599." Monthly Notices of the Royal Astronomical Society. 518 (2), p. 2627–2639. https://doi.org/10.1093/mnras/stac2845

Article

A detailed analysis of the HD 73526 2:1 resonant planetary system
Wittenmyer, Robert A., Tan, Xianyu, Lee, Manhoi, Horner, Jonathan, Tinney, C. G., Butler, R. P., Salter, G. S., Carter, B. D., Jones, H. R. A., O'Toole, S. J., Bailey, J., Wright, D., Crane, J. D., Schectman, S. A., Arriagada, P., Thompson, I., Minniti, D. and Diaz, M.. 2014. "A detailed analysis of the HD 73526 2:1 resonant planetary system." The Astrophysical Journal: an international review of astronomy and astronomical physics. 780 (2), pp. 1-9. https://doi.org/10.1088/0004-637X/780/2/140

Article

A detailed dynamical investigation of the proposed QS Virginis planetary system
Horner, J., Wittenmyer, R. A., Hinse, T. C., Marshall, J. P., Mustill, A. J. and Tinney, C. G.. 2013. "A detailed dynamical investigation of the proposed QS Virginis planetary system." Monthly Notices of the Royal Astronomical Society. 435 (3), pp. 2033-2039. https://doi.org/10.1093/mnras/stt1420

Article

A detailed investigation of the proposed NN Serpentis planetary system
Horner, J., Wittenmyer, R. A., Hinse, T. C. and Tinney, C. G.. 2012. "A detailed investigation of the proposed NN Serpentis planetary system." Monthly Notices of the Royal Astronomical Society. 425 (1), pp. 749-756. https://doi.org/10.1111/j.1365-2966.2012.21620.x

Article

A disintegrating minor planet transiting a white dwarf
Vanderburg, Andrew, Johnson, John Asher, Rappaport, Saul, Bieryla, Allyson, Irwin, Jonathan, Lewis, John Arban, Kipping, David, Brown, Warren R., Dufour, Patrick, Ciardi, David R., Angus, Ruth, Schaefer, Laura, Latham, David W., Charbonneau, David, Beichman, Charles, Eastman, Jason, McCrady, Nate, Wittenmyer, Robert A. and Wright, Jason T.. 2015. "A disintegrating minor planet transiting a white dwarf ." Nature. 526 (7574), pp. 546-549. https://doi.org/10.1038/nature15527

Article

A double planetary system around the evolved intermediate-mass star HD 4732
Sato, Bun'Ei, Omiya, Masashi, Wittenmyer, Robert A., Harakawa, Hiroki, Nagasawa, Makiko, Izumiura, Hideyuki, Kambe, Eiji, Takeda, Yoichi, Yoshida, Michitoshi, Itoh, Yoichi, Ando, Hiroyasu, Kokubo, Eiichiro and Ida, Shigeru. 2013. "A double planetary system around the evolved intermediate-mass star HD 4732." The Astrophysical Journal: an international review of astronomy and astronomical physics. 762 (1). https://doi.org/10.1088/0004-637X/762/1/9

Article

A dynamical analysis of the proposed circumbinary HWVirginis planetary system
Horner, J., Hinse, T. C., Wittenmyer, R. A., Marshall, J. P. and Tinney, C. G.. 2012. "A dynamical analysis of the proposed circumbinary HWVirginis planetary system." Monthly Notices of the Royal Astronomical Society. 427 (4), pp. 2812-2823. https://doi.org/10.1111/j.1365-2966.2012.22046.x

Article

A dynamical analysis of the proposed HU Aquarii planetary system
Horner, J., Marshall, J. P., Wittenmyer, Robert A. and Tinney, C. G.. 2011. "A dynamical analysis of the proposed HU Aquarii planetary system." Monthly Notices of the Royal Astronomical Society: Letters. 416 (1), pp. L11-L15. https://doi.org/10.1111/j.1745-3933.2011.01087.x

Article

A dynamical investigation of the proposed BD +20 2457 system
Horner, J., Wittenmyer, R. A., Hinse, T. C. and Marshall, J. P.. 2014. "A dynamical investigation of the proposed BD +20 2457 system." Monthly Notices of the Royal Astronomical Society. 439 (1), pp. 1176-1181. https://doi.org/10.1093/mnras/stu081

Article

A first comparison of Kepler planet candidates in single and multiple systems
Latham, David W., Rowe, Jason F., Quinn, Samuel N., Batalha, Natalie M., Borucki, William J., Brown, Timothy M., Bryson, Stephen T., Buchhave, Lars A., Caldwell, Douglas A., Carter, Joshua A., Christiansen, Jessie L., Ciardi, David R., Cochran, William D., Dunham, Edward W., Fabrycky, Daniel C., Ford, Eric B., Gautier, Thomas N., Gilliland, Ronald L., Holman, Matthew J., ..., Wohler, Bill. 2011. "A first comparison of Kepler planet candidates in single and multiple systems." The Astrophysical Journal Letters. 732 (2), pp. L24-L27. https://doi.org/10.1088/2041-8205/732/2/L24

Article

A flexible, extensible online testing system for mathematics
Passmore, Tim, Brookshaw, Leigh and Butler, Harry. 2011. "A flexible, extensible online testing system for mathematics." Australasian Journal of Educational Technology. 27 (6), pp. 896-906. https://doi.org/10.14742/ajet.919

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A flexible, extensible online testing system for mathematics
Passmore, Tim, Brookshaw, Leigh and Butler, Harry J.. 2007. "A flexible, extensible online testing system for mathematics." AMS NZMS 2007: Joint Meeting of the American Mathematical Society and the New Zealand Mathematical Society. Wellington, New Zealand 12 - 15 Dec 2007 Wellington, New Zealand.

Poster

A full implementation of spectro-perfectionism for precise radial velocity exoplanet detection: a test case with the MINERVA reduction pipeline
Cornachione, Matthew A., Bolton, Adam S., Eastman, Jason D., Wilson, Maurice L., Wang, Sharon X., Johnson, Samson A., Sliski, David H., McCrady, Nate, Wright, Jason T., Plavchan, Peter, Johnson, John Asher, Horner, Jonathan and Wittenmyer, Robert A.. 2019. "A full implementation of spectro-perfectionism for precise radial velocity exoplanet detection: a test case with the MINERVA reduction pipeline." Publications of the Astronomical Society of the Pacific. 131 (1006). https://doi.org/10.1088/1538-3873/ab4103

Article

A giant planet candidate transiting a white dwarf
Vanderburg, Andrew, Rappaport, Saul A., Xu, Siyi, Crossfield, Ian J. M., Becker, Juliette C., Gary, Bruce, Murgas, Felipe, Blouin, Simon, Kaye, Thomas G., Palle, Enric, Melis, Carl, Morris, Brett M., Kreidberg, Laura, Gorjian, Varoujan, Morley, Caroline V., Mann, Andrew W., Parviainen, Hannu, Pearce, Logan A., Newton, Elisabeth R., ..., Yu, Liang. 2020. "A giant planet candidate transiting a white dwarf." Nature. 585 (7825). https://doi.org/10.1038/s41586-020-2713-y

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A giant planet undergoing extreme-ultraviolet irradiation by its hot massive-star host
Gaudi, B. Scott, Stassun, Keivan G., Collins, Karen A., Beatty, Thomas G., Zhou, George, Latham, David W., Bieryla, Allyson, Eastman, Jason D., Siverd, Robert J., Crepp, Justin R., Gonzales, Erica J., Stevens, Daniel J., Buchhave, Lars A., Pepper, Joshua, Johnson, Marshall C., Colon, Knicole D., Jensen, Eric L. N., Rodriguez, Joseph E., Bozza, Valerio, ..., Trueblood, Patricia. 2017. "A giant planet undergoing extreme-ultraviolet irradiation by its hot massive-star host." Nature. 546 (7659). https://doi.org/10.1038/nature22392

Article

A Habitable-zone Earth-sized Planet Rescued from False Positive Status
Vanderburg, Andrew, Rowden, Pamela, Bryson, Steve, Coughlin, Jeffrey, Batalha, Natalie, Collins, Karen A., Latham, David W., Mullally, Susan E., Colon, Knicole D., Henze, Chris, Huang, Chelsea X. and Quinn, Samuel N.. 2020. "A Habitable-zone Earth-sized Planet Rescued from False Positive Status." The Astrophysical Journal Letters. 893 (1), pp. 1-8. https://doi.org/10.3847/2041-8213/ab84e5

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A hidden population of massive white dwarfs: two spotted K + WD binaries
Rowan, Dominick M, Jayasinghe, Tharindu, Tucker, Michael A., Lam, Casey Y., Thompson, Todd A., Kochanek, Christopher S., Abrams, Natasha S., Fulton, Benjamin J., Ilyin, Ilya, Isaacson, Howard, Lu, Jessica R., Martin, David V. and Nicholson, Belinda. 2024. "A hidden population of massive white dwarfs: two spotted K + WD binaries." Monthly Notices of the Royal Astronomical Society. 529, pp. 587-603. https://doi.org/10.1093/mnras/stae517

Article

A High Obliquity Orbit for the Hot-Jupiter HATS-14b Transiting a 5400K Star
Zhou, G., Bayliss, D., Hartman, J. D., Fulton, B. J., Bakos, G. A., Howard, A. W., Isaacson, H., Marcy, G. W., Schmidt, B. P., Brahm, R. and Jordan, A.. 2015. "A High Obliquity Orbit for the Hot-Jupiter HATS-14b Transiting a 5400K Star." The Astrophysical Journal Letters. 814 (1), pp. 1-6. https://doi.org/10.1088/2041-8205/814/1/l16

Article

A high stellar obliquity in the WASP-7 exoplanetary system
Albrecht, Simon, Winn, Joshua N., Butler, R. Paul, Crane, Jeffrey D., Shectman, Stephen A., Thompson, Ian B., Hirano, Teruyuki and Wittenmyer, Robert A.. 2012. "A high stellar obliquity in the WASP-7 exoplanetary system." The Astrophysical Journal: an international review of astronomy and astronomical physics. 744 (2). https://doi.org/10.1088/0004-637X/744/2/189

Article

A high-precision near-infrared survey for radial velocity variable low-mass stars using CSHELL and a methane gas cell
Gagne, Jonathan, Plavchan, Peter, Gao, Peter, Anglada-Escude, Guillem, Furlan, Elise, Davison, Cassy, Tanner, Angelle, Henry, Todd J., Riedel, Adric R., Brinkworth, Carolyn, Latham, David, Bottom, Michael, White, Russel, Mills, Sean, Beichman, Chas, Johnson, John A., Ciardi, David R., Wallace, Kent, Mennesson, Bertrand, ..., Catanzarite, Joseph. 2016. "A high-precision near-infrared survey for radial velocity variable low-mass stars using CSHELL and a methane gas cell." The Astrophysical Journal: an international review of astronomy and astronomical physics. 822 (1), pp. 40-63. https://doi.org/10.3847/0004-637X/822/1/40

Article

A high-precision polarimeter for small telescopes
Bailey, Jeremy, Cotton, Daniel V. and Kedziora-Chudczer, Lucyna. 2017. "A high-precision polarimeter for small telescopes." Monthly Notices of the Royal Astronomical Society. 465 (2), pp. 1601-1607. https://doi.org/10.1093/mnras/stw2886

Article

A hot mini-Neptune and a temperate, highly eccentric sub-Saturn around the bright K-dwarf TOI-2134
Rescigno, F., Hebrard, G., Vanderburg, A. W., Mann, A.W., Mortier, A., Morrell, S., Buchhave, L. A., Collins, K. A., Mann, C. R., Hellier, C., Haywood, R. D., West, R., Stalport, M., Heidari, N., Anderson, D., Huang, C. X., Lopez-Morales, M., Cortés-Zuleta, P., Lewis, H.M., ..., Fores-Toribio, R.. 2024. "A hot mini-Neptune and a temperate, highly eccentric sub-Saturn around the bright K-dwarf TOI-2134." Monthly Notices of the Royal Astronomical Society. 527, pp. 5385-5407. https://doi.org/10.1093/mnras/stad3255

Article

A hot terrestrial planet orbiting the bright M dwarf L 168-9 unveiled by TESS
Astudillo-Defru, N., Cloutier, R., Wang, S. X., Teske, J., Brahm, R., Hellier, C., Ricker, G., Vanderspek, R., Latham, D., Seager, S., Winn, J. N., Jenkins, J. M., Collins, K. A., Stassun, K. G., Ziegler, C., Almenara, J. M., Anderson, D. R., Artigau, E., Bonfils, X., ..., Zhou, G.. 2020. "A hot terrestrial planet orbiting the bright M dwarf L 168-9 unveiled by TESS." Astronomy and Astrophysics: a European journal. 636, pp. 1-13. https://doi.org/10.1051/0004-6361/201937179

Article

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

Article

A Large Ground-based Observing Campaign of the Disintegrating Planet K2-22b
Colon, Knicole D., Zhou, George, Shporer, Avi, Collins, Karen A., Bieryla, Allyson, Espinoza, Nestor, Murgas, Felipe, Pattarakijwanich, Petchara, Awiphan, Supachai, Armstrong, James D., Bailey, Jeremy, Barentsen, Geert, Bayliss, Daniel, Chakpor, Anurak, Cochran, William D., Dhillon, Vikram S., Horne, Keith, Ireland, Michael, Kedziora-Chudczer, Lucyna, ..., Yuma, Suraphong. 2018. "A Large Ground-based Observing Campaign of the Disintegrating Planet K2-22b." The Astronomical Journal. 156 (5), pp. 1-11. https://doi.org/10.3847/1538-3881/aae31b

Article

A long-period planet orbiting a nearby Sun-like star
Jones, Hugh R. A., Butler, R. Paul, Tinney, C. G., O'Toole, Simon, Wittenmyer, Rob, Henry, Gregory W., Meschiari, Stefano, Vogt, Steve, Rivera, Eugenio, Laughlin, Greg, Carter, Brad D., Bailey, Jeremy and Jenkins, James S.. 2010. "A long-period planet orbiting a nearby Sun-like star." Monthly Notices of the Royal Astronomical Society. 403 (4), pp. 1703-1713. https://doi.org/10.1111/j.1365-2966.2009.16232.x

Article

A Mini-Neptune from TESS and CHEOPS Around the 120Myr Old AB Dor Member HIP 94235
Zhou, George, Wirth, Christopher P., Huang, Chelsea X., Venner, Alexander, Franson, Kyle, Quinn, Samuel N., Bouma, L. G., Kraus, Adam L., Mann, Andrew W., Newton, Elisabeth. R., Dragomir, Diana, Heitzmann, Alexis, Lowson, Nataliea, Douglas, Stephanie T., Battley, Matthew, Gillen, Edward, Triaud, Amaury, Latham, David W., Howell, Steve B., ..., Kunimoto, Michelle. 2022. "A Mini-Neptune from TESS and CHEOPS Around the 120Myr Old AB Dor Member HIP 94235." The Astronomical Journal. 163 (6), pp. 1-19. https://doi.org/10.3847/1538-3881/ac69e3

Article

A Mini-Neptune Orbiting the Metal-poor K Dwarf BD+29 2654
Dai, Fei, Schlaufman, Kevin C., Reggiani, Henrique, Bouma, Luke, Howard, Andrew W,, Chontos, Ashley, Pidhorodetska, Daria, Van Zandt, Judah, Akana Murphy, Joseph M., Rubenzahl, Ryan A., Polanski, Alex S., Lubin, Jack, Beard, Corey, Giacalone, Steven, Holcomb, Rae, Batalha, Natalie M., Crossfield, Ian, Dressing, Courtney, Fulton, Benjamin, ..., Ciardi, David R.. 2023. "A Mini-Neptune Orbiting the Metal-poor K Dwarf BD+29 2654." The Astronomical Journal. 166 (2). https://doi.org/10.3847/1538-3881/acdee8

Article

A mixed stirring mechanism for debris discs with giant and dwarf planetary perturbations
Munoz-Gutierrez, Marco A., Marshall, Jonathan P. and Peimbert, Antonio. 2023. "A mixed stirring mechanism for debris discs with giant and dwarf planetary perturbations." Monthly Notices of the Royal Astronomical Society. 520 (3), pp. 3218-3228. https://doi.org/10.1093/mnras/stad218

Article