Evidence for transit-timing variations of the 11 Myr exoplanet TOI-1227 b

[en] TOI-1227 b is an 11 Myr old validated transiting planet in the middle of its contraction phase, with a current radius of 0.85 Rj. It orbits a low-mass pre-main sequence star (0.170 M⊙, 0.56 R⊙) every 27.4 days. The magnetic activity of its young host star induces radial velocity jitter and prevents good measurements of the planetary mass. We gathered additional transit observations of TOI-1227 b with space- and ground-based telescopes, and we detected highly significant transit-timing variations (TTVs). Their amplitude is about 40 min and their dominant timescale is longer than 3.7 yr. Their most probable origin is dynamical interactions with additional planets in the system. We modeled the TTVs with inner and outer perturbers near first and second order resonances; several orbital configurations provide an acceptable fit. More data are needed to determine the actual orbital configuration and eventually measure the planetary masses. These TTVs and an updated transit chromaticity analysis reinforce the evidence that TOI-1227 b is a planet.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Almenara, J. M.; University of Geneva, Astronomical Observatory, Institute de Planetologie et d'Astrophysique de Grenoble

Bonfils, X.; Institute de Planetologie et d'Astrophysique de Grenoble

Guillot, T.; Observatoire de la Cote d'Azur, France

Timmermans, Mathilde ; Université de Liège - ULiège > Astrobiology

Díaz, R. F.; National University of San Martin, Argentina

Venturini, J.; University of Geneva, Astronomical Observatory

Petit, A. C.; Observatoire de la Cote d'Azur, France

Forveille, T.; Institute de Planetologie et d'Astrophysique de Grenoble

Suárez, O.; Observatoire de la Cote d'Azur, France

Mékarnia, D.; Observatoire de la Cote d'Azur, France

More authors (20 more)

Language :

English

Title :

Evidence for transit-timing variations of the 11 Myr exoplanet TOI-1227 b

Publication date :

01 March 2024

Journal title :

Astronomy and Astrophysics

ISSN :

0004-6361

eISSN :

1432-0746

Publisher :

EDP Sciences, Les Ulis, Fr

Volume :

683

Pages :

A96

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

https://ui.adsabs.harvard.edu/abs/2024A&A...683A..96A

Available on ORBi :

since 19 March 2024

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Bibliography

Abe, L., Gonçalves, I., Agabi, A., et al. 2013, A&A, 553, A49
Agol, E., Steffen, J., Sari, R., & Clarkson, W. 2005, MNRAS, 359, 567
Bolmont, E., Gallet, F., Mathis, S., et al. 2017, A&A, 604, A113
Bonfils, X., Almenara, J. M., Jocou, L., et al. 2015, SPIE Conf. Ser., 9605, 96051L
Caldwell, D. A., Tenenbaum, P., Twicken, J. D., et al. 2020, Res. Notes Am. Astron. Soc., 4, 201
Cale, B. L., Reefe, M., Plavchan, P., et al. 2021, AJ, 162, 295
Czesla, S., Huber, K. F., Wolter, U., Schröter, S., & Schmitt, J. H. M. M. 2009, A&A, 505, 1277
David, T. J., Hillenbrand, L. A., Petigura, E. A., et al. 2016, Nature, 534, 658
David, T. J., Petigura, E. A., Luger, R., et al. 2019, ApJ, 885, L12
Deck, K. M., & Agol, E. 2015, ApJ, 802, 116
Deck, K. M., & Batygin, K. 2015, ApJ, 810, 119
Delisle, J.-B., & Laskar, J. 2014, A&A, 570, L7
Delrez, L., Gillon, M., Queloz, D., et al. 2018, SPIE Conf. Ser., 10700, 107001I
Donati, J. F., Cristofari, P. I., Finociety, B., et al. 2023, MNRAS, 525, 455
Dorn, C., Venturini, J., Khan, A., et al. 2017, A&A, 597, A37
Dransfield, G., Mékarnia, D., Triaud, A. H. M. J., et al. 2022, SPIE Conf. Ser., 12186, 121861F
Espinoza, N. 2018, Res. Notes Am. Astron. Soc., 2, 209
Espinoza, N., Kossakowski, D., & Brahm, R. 2019, MNRAS, 490, 2262
Finociety, B., Donati, J. F., Cristofari, P. I., et al. 2023, MNRAS, 526, 4627
Foreman-Mackey, D., Hogg, D. W., Lang, D., & Goodman, J. 2013, PASP, 125, 306
Foreman-Mackey, D., Agol, E., Ambikasaran, S., & Angus, R. 2017, AJ, 154, 220
Gaia Collaboration (Brown, A. G. A., et al.) 2018, A&A, 616, A1
Garcia, L. J., Timmermans, M., Pozuelos, F. J., et al. 2022, MNRAS, 509, 4817
Gardner, J. P., Mather, J. C., Clampin, M., et al. 2006, Space Sci. Rev., 123, 485
Gillon, M., Jehin, E., Magain, P., et al. 2011, EPJ Web Conf., 11, 06002
Goodman, J., & Weare, J. 2010, Commun. Appl. Math. Comput. Sci., 5, 65
Guillot, T. 2010, A&A, 520, A27
Guillot, T., Abe, L., Agabi, A., et al. 2015, Astron. Nachr., 336, 638
Gupta, A., & Schlichting, H. E. 2019, MNRAS, 487, 24
Haldemann, J., Dorn, C., Venturini, J., Alibert, Y., & Benz, W. 2024, A&A, 681, A96
Holman, M. J., & Murray, N. W. 2005, Science, 307, 1288
Ioannidis, P., Huber, K. F., & Schmitt, J. H. M. M. 2016, A&A, 585, A72
Irwin, J. B. 1952, ApJ, 116, 211
Jehin, E., Gillon, M., Queloz, D., et al. 2011, The Messenger, 145, 2
Jehin, E., Gillon, M., Queloz, D., et al. 2018, The Messenger, 174, 2
Jenkins, J. M., Twicken, J. D., McCauliff, S., et al. 2016, SPIE Conf. Ser., 9913, 99133E
Jones, E., Oliphant, T., Peterson, P., et al. 2001, SciPy: Open source scientific tools for Python, https://scipy.org/
Kajtazi, K., Petit, A. C., & Johansen, A. 2023, A&A, 669, A44
Kass, R. E., & Raftery, A. E. 1995, J. Am. Stat. Assoc., 90, 773
Kempton, E. M. R., Bean, J. L., Louie, D. R., et al. 2018, PASP, 130, 114401
Kipping, D. M. 2013, MNRAS, 435, 2152
Koornneef, J., Bohlin, R., Buser, R., Horne, K., & Turnshek, D. 1986, High. Astron., 7, 833
Kreidberg, L. 2015, PASP, 127, 1161
Kubyshkina, D., Vidotto, A. A., Fossati, L., & Farrell, E. 2020, MNRAS, 499, 77
Linder, E. F., Mordasini, C., Mollière, P., et al. 2019, A&A, 623, A85
Lithwick, Y., Xie, J., & Wu, Y. 2012, ApJ, 761, 122
Lopez, E. D., Fortney, J. J., & Miller, N. 2012, ApJ, 761, 59
Mann, A. W., Newton, E. R., Rizzuto, A. C., et al. 2016, AJ, 152, 61
Mann, A. W., Wood, M. L., Schmidt, S. P., et al. 2022, AJ, 163, 156
Martioli, E., Hébrard, G., Correia, A. C. M., Laskar, J., & Lecavelier des Etangs, A. 2021, A&A, 649, A177
Matsumura, S., Peale, S. J., & Rasio, F. A. 2010, ApJ, 725, 1995
Mékarnia, D., Guillot, T., Rivet, J. P., et al. 2016, MNRAS, 463, 45
Mordasini, C. 2020, A&A, 638, A52
Mordasini, C., Alibert, Y., Georgy, C., et al. 2012, A&A, 547, A112
Müller, S., Ben-Yami, M., & Helled, R. 2020, ApJ, 903, 147
Nesvorný, D., & Vokrouhlický, D. 2016, ApJ, 823, 72
Owen, J. E., & Wu, Y. 2017, ApJ, 847, 29
Papaloizou, J. C. B., & Terquem, C. 2010, MNRAS, 405, 573
Plavchan, P., Barclay, T., Gagné, J., et al. 2020, Nature, 582, 497
Rackham, B. V., Apai, D., & Giampapa, M. S. 2018, ApJ, 853, 122
Rajpaul, V., Aigrain, S., Osborne, M. A., Reece, S., & Roberts, S. 2015, MNRAS, 452, 2269
Rappaport, S., Deck, K., Levine, A., et al. 2013, ApJ, 768, 33
Rasmussen, C. E., & Williams, C. K. I. 2005, Gaussian Processes for Machine Learning (Adaptive Computation and Machine Learning) (Cambridge: The MIT Press)
Rein, H., & Liu, S. F. 2012, A&A, 537, A128
Rein, H., & Spiegel, D. S. 2015, MNRAS, 446, 1424
Ricker, G. R., Winn, J. N., Vanderspek, R., et al. 2015, J. Astron. Telesc. Instrum. Syst., 1, 014003
Rodrigo, C., & Solano, E. 2020, in Contributions to the XIV.0 Scientific Meeting (virtual) of the Spanish Astronomical Society, held 13-15 July 2020, online at https://www.sea-astronomia.es/reunion-cientifica-2020, 182
Rodrigo, C., Solano, E., & Bayo, A. 2012, SVO Filter Profile Service Version 1.0, IVOA Working Draft 15 October 2012
Schmider, F.-X., Abe, L., Agabi, A., et al. 2022, SPIE Conf. Ser., 12182, 121822O
Sebastian, D., Gillon, M., Ducrot, E., et al. 2021, A&A, 645, A100
Skrutskie, M. F., Cutri, R. M., Stiening, R., et al. 2006, AJ, 131, 1163
Smith, J. C., Stumpe, M. C., Van Cleve, J. E., et al. 2012, PASP, 124, 1000
Speagle, J. S. 2020, MNRAS, 493, 3132
Stumpe, M. C., Smith, J. C., Van Cleve, J. E., et al. 2012, PASP, 124, 985
Stumpe, M. C., Smith, J. C., Catanzarite, J. H., et al. 2014, PASP, 126, 100
Suárez Mascareño, A., Damasso, M., Lodieu, N., et al. 2021, Nat. Astron., 6, 232
Teyssandier, J., & Libert, A.-S. 2020, A&A, 643, A11
Vazan, A., Kovetz, A., Podolak, M., & Helled, R. 2013, MNRAS, 434, 3283
Venturini, J., Guilera, O. M., Haldemann, J., Ronco, M. P., & Mordasini, C. 2020, A&A, 643, L1
Yu, L., Winn, J. N., Gillon, M., et al. 2015, ApJ, 812, 48