Migration and Evolution of giant ExoPlanets (MEEP). I. Nine Newly Confirmed Hot Jupiters from the TESS Mission

Hot Jupiters were many of the first exoplanets discovered in the 1990s, but in the decades since their discovery the mysteries surrounding their origins have remained. Here we present nine new hot Jupiters (TOI-1855 b, TOI-2107 b, TOI-2368 b, TOI-3321 b, TOI-3894 b, TOI-3919 b, TOI-4153 b, TOI-5232 b, and TOI-5301 b) discovered by NASA’s TESS mission and confirmed using ground-based imaging and spectroscopy. These discoveries are the first in a series of papers named the Migration and Evolution of giant ExoPlanets survey and are part of an ongoing effort to build a complete sample of hot Jupiters orbiting FGK stars, with a limiting Gaia G-band magnitude of 12.5. This effort aims to use homogeneous detection and analysis techniques to generate a set of precisely measured stellar and planetary properties that is ripe for statistical analysis. The nine planets presented in this work occupy a range of masses (0.55M J < MP < 3.88M J) and sizes (0.967R J < RP < 1.438R J) and orbit stars that have an effective temperature in the range of 5360 K < T eff < 6860 K with Gaia G-band magnitudes ranging from 11.1 to 12.7. Two of the planets in our sample have detectable orbital eccentricity: TOI-3919 b ( e=0.259−0.036+0.033 ) and TOI-5301 b ( e=0.33−0.10+0.11 ). These eccentric planets join a growing sample of eccentric hot Jupiters that are consistent with high-eccentricity tidal migration, one of the three most prominent theories explaining hot Jupiter formation and evolution.

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UNC Libraries
Published
2024-11-06
DOI
https://doi.org/10.17615/r5rh-8t79
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Astro and Planetary Science
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article
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article

Migration and Evolution of giant ExoPlanets (MEEP). I. Nine Newly Confirmed Hot Jupiters from the TESS Mission

Samuel N. Quinn, M. Vaňko, Arjun B. Savel, Ismael Mireles et al.
UNC Libraries
Astro and Planetary Science
article

Migration and Evolution of giant ExoPlanets (MEEP). I. Nine Newly Confirmed Hot Jupiters from the TESS Mission

Samuel N. Quinn, M. Vaňko, Arjun B. Savel, Ismael Mireles, Shane Painter, Jon M. Jenkins, Andrew W. Mann, Jeremy Fedewa, Gavin Wang, Ramotholo Sefako, M. Gillon, Kathryn V. Lester, F. J. Pozuelos, Ivan A. Strakhov, F. Murgas, Akihiko Fukui, Ε. Πάλλη, Steven Giacalone, David W. Latham, Emmanuël Jehin, Michael B. Lund, Phil Evans, Diana Dragomir, Howard M. Relles, J. D. Hartman, E. J. Michaels, H. Parviainen, Samuel W. Yee, Courtney D. Dressing, Karen A. Collins, Chris Stockdale, Mason McCormack, Steve B. Howell, Jack Schulte, Sara Seager, R. Karjalainen, Mark E. Everett, Richard P. Schwarz, Serge Bergeron, Mathilde Timmermans, Ferran Grau Horta, D. Peterson, Colin Littlefield, K. Horne, Khalid Barkaoui, G. Ricker, Keisuke Isogai, Jerome de Leon, Melinda Soares-Furtado, Catherine A. Clark, Kevin I. Collins, Carl Ziegler, Paul Benni, Avi Shporer, Phillip A. Reed, Tianjun Gan, Noah Vowell, Jason D. Eastman, Ivan S. Gerasimov, H. M. J. Boffin, David R. Ciardi, Stephanie Striegel, Norio Narita, Michael Bellaver, Holden Gill, John F. Kielkopf, Joseph E. Rodriguez, E. Esparza-Borges, Andrew C. Nine, Allyson Bieryla, Zachary Raup, César Briceño, Joshua N. Winn, Hannah Sullivan, Gregor Srdoč
article en

Abstract

Hot Jupiters were many of the first exoplanets discovered in the 1990s, but in the decades since their discovery the mysteries surrounding their origins have remained. Here we present nine new hot Jupiters (TOI-1855 b, TOI-2107 b, TOI-2368 b, TOI-3321 b, TOI-3894 b, TOI-3919 b, TOI-4153 b, TOI-5232 b, and TOI-5301 b) discovered by NASA’s TESS mission and confirmed using ground-based imaging and spectroscopy. These discoveries are the first in a series of papers named the Migration and Evolution of giant ExoPlanets survey and are part of an ongoing effort to build a complete sample of hot Jupiters orbiting FGK stars, with a limiting Gaia G-band magnitude of 12.5. This effort aims to use homogeneous detection and analysis techniques to generate a set of precisely measured stellar and planetary properties that is ripe for statistical analysis. The nine planets presented in this work occupy a range of masses (0.55M J < MP < 3.88M J) and sizes (0.967R J < RP < 1.438R J) and orbit stars that have an effective temperature in the range of 5360 K < T eff < 6860 K with Gaia G-band magnitudes ranging from 11.1 to 12.7. Two of the planets in our sample have detectable orbital eccentricity: TOI-3919 b ( e=0.259−0.036+0.033 ) and TOI-5301 b ( e=0.33−0.10+0.11 ). These eccentric planets join a growing sample of eccentric hot Jupiters that are consistent with high-eccentricity tidal migration, one of the three most prominent theories explaining hot Jupiter formation and evolution.

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