A long-period transiting substellar companion in the super-Jupiters to brown dwarfs mass regime and a prototypical warm-Jupiter detected by TESS
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2024
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| author | Jones, Matias I. Reinarz, Yared Brahm, Rafael Pinto, Marcelo Tala Eberhardt, Jan Rojas, Felipe Triaud, Amaury H. M. J. Gupta, Arvind F. Ziegler, Carl Hobson, Melissa J. Jordan, Andres Henning, Thomas Trifonov, Trifon Schlecker, Martin Espinoza, Nestor Torres-Miranda, Pascal Sarkis, Paula Ulmer-Moll, Solene Lendl, Monika Uzundag, Murat Moyano, Maximiliano Hesse, Katharine Caldwell, Douglas A. Shporer, Avi Lund, Michael B. Jenkins, Jon M. Seager, Sara Winn, Joshua N. Ricker, George R. Burke, Christopher J. Figueira, Pedro Psaridi, Angelica Moulla, Khaled Al Mounzer, Dany Standing, Matthew R. Martin, David V. Dransfield, Georgina Baycroft, Thomas Dragomir, Diana Boyle, Gavin Suc, Vincent Mann, Andrew W. Timmermans, Mathilde Ducrot, Elsa Hooton, Matthew J. Zuniga-Fernandez, Sebastian Sebastian, Daniel Gillon, Michael Queloz, Didier Carson, Joe Lissauer, Jack J. |
| author_facet | Jones, Matias I. Reinarz, Yared Brahm, Rafael Pinto, Marcelo Tala Eberhardt, Jan Rojas, Felipe Triaud, Amaury H. M. J. Gupta, Arvind F. Ziegler, Carl Hobson, Melissa J. Jordan, Andres Henning, Thomas Trifonov, Trifon Schlecker, Martin Espinoza, Nestor Torres-Miranda, Pascal Sarkis, Paula Ulmer-Moll, Solene Lendl, Monika Uzundag, Murat Moyano, Maximiliano Hesse, Katharine Caldwell, Douglas A. Shporer, Avi Lund, Michael B. Jenkins, Jon M. Seager, Sara Winn, Joshua N. Ricker, George R. Burke, Christopher J. Figueira, Pedro Psaridi, Angelica Moulla, Khaled Al Mounzer, Dany Standing, Matthew R. Martin, David V. Dransfield, Georgina Baycroft, Thomas Dragomir, Diana Boyle, Gavin Suc, Vincent Mann, Andrew W. Timmermans, Mathilde Ducrot, Elsa Hooton, Matthew J. Zuniga-Fernandez, Sebastian Sebastian, Daniel Gillon, Michael Queloz, Didier Carson, Joe Lissauer, Jack J. |
| contents | We report on the confirmation and follow-up characterization of two long-period transiting substellar companions on low-eccentricity orbits around TIC 4672985 and TOI-2529, whose transit events were detected by the TESS space mission. Ground-based photometric and spectroscopic follow-up from different facilities, confirmed the substellar nature of TIC 4672985 b, a massive gas giant, in the transition between the super Jupiters and brown dwarfs mass regime. From the joint analysis we derived the following orbital parameters: P = 69.0480 d, Mp = 12.74 Mjup, Rp = 1.026 Rjup and e = 0.018. In addition, the RV time series revealed a significant trend at the 350 m/s/yr level, which is indicative of the presence of a massive outer companion in the system. TIC 4672985 b is a unique example of a transiting substellar companion with a mass above the deuterium-burning limit, located beyond 0.1 AU and in a nearly circular orbit. These planetary properties are difficult to reproduce from canonical planet formation and evolution models. For TOI-2529 b, we obtained the following orbital parameters: P = 64.5949 d, Mp = 2.340 Mjup, Rp = 1.030 Rjup and e = 0.021, making this object a new example of a growing population of transiting warm giant planets. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_09657 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A long-period transiting substellar companion in the super-Jupiters to brown dwarfs mass regime and a prototypical warm-Jupiter detected by TESS Jones, Matias I. Reinarz, Yared Brahm, Rafael Pinto, Marcelo Tala Eberhardt, Jan Rojas, Felipe Triaud, Amaury H. M. J. Gupta, Arvind F. Ziegler, Carl Hobson, Melissa J. Jordan, Andres Henning, Thomas Trifonov, Trifon Schlecker, Martin Espinoza, Nestor Torres-Miranda, Pascal Sarkis, Paula Ulmer-Moll, Solene Lendl, Monika Uzundag, Murat Moyano, Maximiliano Hesse, Katharine Caldwell, Douglas A. Shporer, Avi Lund, Michael B. Jenkins, Jon M. Seager, Sara Winn, Joshua N. Ricker, George R. Burke, Christopher J. Figueira, Pedro Psaridi, Angelica Moulla, Khaled Al Mounzer, Dany Standing, Matthew R. Martin, David V. Dransfield, Georgina Baycroft, Thomas Dragomir, Diana Boyle, Gavin Suc, Vincent Mann, Andrew W. Timmermans, Mathilde Ducrot, Elsa Hooton, Matthew J. Zuniga-Fernandez, Sebastian Sebastian, Daniel Gillon, Michael Queloz, Didier Carson, Joe Lissauer, Jack J. Earth and Planetary Astrophysics Solar and Stellar Astrophysics We report on the confirmation and follow-up characterization of two long-period transiting substellar companions on low-eccentricity orbits around TIC 4672985 and TOI-2529, whose transit events were detected by the TESS space mission. Ground-based photometric and spectroscopic follow-up from different facilities, confirmed the substellar nature of TIC 4672985 b, a massive gas giant, in the transition between the super Jupiters and brown dwarfs mass regime. From the joint analysis we derived the following orbital parameters: P = 69.0480 d, Mp = 12.74 Mjup, Rp = 1.026 Rjup and e = 0.018. In addition, the RV time series revealed a significant trend at the 350 m/s/yr level, which is indicative of the presence of a massive outer companion in the system. TIC 4672985 b is a unique example of a transiting substellar companion with a mass above the deuterium-burning limit, located beyond 0.1 AU and in a nearly circular orbit. These planetary properties are difficult to reproduce from canonical planet formation and evolution models. For TOI-2529 b, we obtained the following orbital parameters: P = 64.5949 d, Mp = 2.340 Mjup, Rp = 1.030 Rjup and e = 0.021, making this object a new example of a growing population of transiting warm giant planets. |
| title | A long-period transiting substellar companion in the super-Jupiters to brown dwarfs mass regime and a prototypical warm-Jupiter detected by TESS |
| topic | Earth and Planetary Astrophysics Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2401.09657 |