Mass determination of two Jupiter-sized planets orbiting slightly evolved stars: TOI-2420 b and TOI-2485 b
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866913465267912704 |
|---|---|
| author | Carleo, Ilaria Barrágan, Oscar Persson, Carina M. Fridlund, Malcolm Lam, Kristine W. F. Messina, Sergio Gandolfi, Davide Smith, Alexis M. S. Johnson, Marshall C. Cochran, William Osborn, Hannah L. M. Brahm, Rafael Ciardi, David R. Collins, Karen A. Everett, Mark E. Giacalone, Steven Guenther, Eike W. Hatzes, Artie Hellier, Coel Kabáth, Jonathan Horner Petr Korth, Judith MacQueen, Phillip Masseron, Thomas Murgas, Felipe Nowak, Grzegorz Rodriguez, Joseph E. Watkins, Cristilyn N. Wittenmyer, Rob Zhou, George Ziegler, Carl Bieryla, Allyson Boyd, Patricia T. Clark, Catherine A. Dressing, Courtney D. Eastman, Jason D. Eberhardt, Jan Endl, Michael Espinoza, Nestor Fausnaugh, Michael Guerrero, Natalia M. Henning, Thomas Hesse, Katharine Hobson, Melissa J. Howell, Steve B. Jordán, Andrés Latham, David W. Lund, Michael B. Mireles, Ismael Narita, Norio Pinto, Marcelo Tala Pugh, Teznie Quinn, Samuel N. Ricker, George Rodriguez, David R. Rojas, Felipe I. Rose, Mark E. Rudat, Alexander Sarkis, Paula Savel, Arjun B. Schlecker, Martin Schwarz, Richard P. Seager, Sara Shporer, Avi Smith, Jeffrey C. Stassun, Keivan G. Stockdale, Chris Trifonov, Trifon Vanderspek, Roland Winn, Joshua N. Wright, Duncan |
| author_facet | Carleo, Ilaria Barrágan, Oscar Persson, Carina M. Fridlund, Malcolm Lam, Kristine W. F. Messina, Sergio Gandolfi, Davide Smith, Alexis M. S. Johnson, Marshall C. Cochran, William Osborn, Hannah L. M. Brahm, Rafael Ciardi, David R. Collins, Karen A. Everett, Mark E. Giacalone, Steven Guenther, Eike W. Hatzes, Artie Hellier, Coel Kabáth, Jonathan Horner Petr Korth, Judith MacQueen, Phillip Masseron, Thomas Murgas, Felipe Nowak, Grzegorz Rodriguez, Joseph E. Watkins, Cristilyn N. Wittenmyer, Rob Zhou, George Ziegler, Carl Bieryla, Allyson Boyd, Patricia T. Clark, Catherine A. Dressing, Courtney D. Eastman, Jason D. Eberhardt, Jan Endl, Michael Espinoza, Nestor Fausnaugh, Michael Guerrero, Natalia M. Henning, Thomas Hesse, Katharine Hobson, Melissa J. Howell, Steve B. Jordán, Andrés Latham, David W. Lund, Michael B. Mireles, Ismael Narita, Norio Pinto, Marcelo Tala Pugh, Teznie Quinn, Samuel N. Ricker, George Rodriguez, David R. Rojas, Felipe I. Rose, Mark E. Rudat, Alexander Sarkis, Paula Savel, Arjun B. Schlecker, Martin Schwarz, Richard P. Seager, Sara Shporer, Avi Smith, Jeffrey C. Stassun, Keivan G. Stockdale, Chris Trifonov, Trifon Vanderspek, Roland Winn, Joshua N. Wright, Duncan |
| contents | Hot and warm Jupiters might have undergone the same formation and evolution path, but the two populations exhibit different distributions of orbital parameters, challenging our understanding on their actual origin. The present work, which is the results of our warm Jupiters survey carried out with the CHIRON spectrograph within the KESPRINT collaboration, aims to address this challenge by studying two planets that could help bridge the gap between the two populations. We report the confirmation and mass determination of a hot Jupiter (orbital period shorter than 10 days), TOI-2420\,b, and a warm Jupiter, TOI-2485\,b. We performed a joint analysis using a wide variety of spectral and photometric data in order to characterize these planetary systems. We found that TOI-2420\,b has an orbital period of P$_{\rm b}$=5.8 days, a mass of M$_{\rm b}$=0.9 M$_{\rm J}$ and a radius of R$_{\rm b}$=1.3 R$_{\rm J}$, with a planetary density of 0.477 \gc; while TOI-2485\,b has an orbital period of P$_{\rm b}$=11.2 days, a mass of M$_{\rm b}$=2.4 M$_{\rm J}$ and a radius of R$_{\rm b}$=1.1 R$_{\rm J}$ with density 2.36 \gc. With current parameters, the migration history for TOI-2420\,b and TOI-2485\,b is unclear: the high-eccentricity migration scenarios cannot be ruled out, and TOI-2485\,b's characteristics may rather support this scenario. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_05612 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Mass determination of two Jupiter-sized planets orbiting slightly evolved stars: TOI-2420 b and TOI-2485 b Carleo, Ilaria Barrágan, Oscar Persson, Carina M. Fridlund, Malcolm Lam, Kristine W. F. Messina, Sergio Gandolfi, Davide Smith, Alexis M. S. Johnson, Marshall C. Cochran, William Osborn, Hannah L. M. Brahm, Rafael Ciardi, David R. Collins, Karen A. Everett, Mark E. Giacalone, Steven Guenther, Eike W. Hatzes, Artie Hellier, Coel Kabáth, Jonathan Horner Petr Korth, Judith MacQueen, Phillip Masseron, Thomas Murgas, Felipe Nowak, Grzegorz Rodriguez, Joseph E. Watkins, Cristilyn N. Wittenmyer, Rob Zhou, George Ziegler, Carl Bieryla, Allyson Boyd, Patricia T. Clark, Catherine A. Dressing, Courtney D. Eastman, Jason D. Eberhardt, Jan Endl, Michael Espinoza, Nestor Fausnaugh, Michael Guerrero, Natalia M. Henning, Thomas Hesse, Katharine Hobson, Melissa J. Howell, Steve B. Jordán, Andrés Latham, David W. Lund, Michael B. Mireles, Ismael Narita, Norio Pinto, Marcelo Tala Pugh, Teznie Quinn, Samuel N. Ricker, George Rodriguez, David R. Rojas, Felipe I. Rose, Mark E. Rudat, Alexander Sarkis, Paula Savel, Arjun B. Schlecker, Martin Schwarz, Richard P. Seager, Sara Shporer, Avi Smith, Jeffrey C. Stassun, Keivan G. Stockdale, Chris Trifonov, Trifon Vanderspek, Roland Winn, Joshua N. Wright, Duncan Earth and Planetary Astrophysics Hot and warm Jupiters might have undergone the same formation and evolution path, but the two populations exhibit different distributions of orbital parameters, challenging our understanding on their actual origin. The present work, which is the results of our warm Jupiters survey carried out with the CHIRON spectrograph within the KESPRINT collaboration, aims to address this challenge by studying two planets that could help bridge the gap between the two populations. We report the confirmation and mass determination of a hot Jupiter (orbital period shorter than 10 days), TOI-2420\,b, and a warm Jupiter, TOI-2485\,b. We performed a joint analysis using a wide variety of spectral and photometric data in order to characterize these planetary systems. We found that TOI-2420\,b has an orbital period of P$_{\rm b}$=5.8 days, a mass of M$_{\rm b}$=0.9 M$_{\rm J}$ and a radius of R$_{\rm b}$=1.3 R$_{\rm J}$, with a planetary density of 0.477 \gc; while TOI-2485\,b has an orbital period of P$_{\rm b}$=11.2 days, a mass of M$_{\rm b}$=2.4 M$_{\rm J}$ and a radius of R$_{\rm b}$=1.1 R$_{\rm J}$ with density 2.36 \gc. With current parameters, the migration history for TOI-2420\,b and TOI-2485\,b is unclear: the high-eccentricity migration scenarios cannot be ruled out, and TOI-2485\,b's characteristics may rather support this scenario. |
| title | Mass determination of two Jupiter-sized planets orbiting slightly evolved stars: TOI-2420 b and TOI-2485 b |
| topic | Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2408.05612 |