TY - JOUR
T1 - The Unusual M-dwarf warm Jupiter TOI-1899 b
T2 - refinement of orbital and planetary parameters
AU - Lin, Andrea S.J.
AU - Libby-Roberts, Jessica E.
AU - Alvarado-Montes, Jaime A.
AU - Cañas, Caleb I.
AU - Kanodia, Shubham
AU - Han, Te
AU - Hebb, Leslie
AU - Jensen, Eric L. N.
AU - Mahadevan, Suvrath
AU - Powers, Luke C.
AU - Swaby, Tera N.
AU - Wisniewski, John
AU - Beard, Corey
AU - Bender, Chad F.
AU - Blake, Cullen H.
AU - Cochran, William D.
AU - Diddams, Scott A.
AU - Frazier, Robert C.
AU - Fredrick, Connor
AU - Gully-Santiago, Michael
AU - Halverson, Samuel
AU - Logsdon, Sarah E.
AU - McElwain, Michael W.
AU - Morley, Caroline
AU - Ninan, Joe P.
AU - Rajagopal, Jayadev
AU - Ramsey, Lawrence W.
AU - Robertson, Paul
AU - Roy, Arpita
AU - Schwab, Christian
AU - Stefánsson, Guðmundur
AU - Stevens, Daniel J.
AU - Terrien, Ryan C.
AU - Wright, Jason T.
N1 - © 2023. The Author(s). Published by the American Astronomical Society. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.
PY - 2023/9/1
Y1 - 2023/9/1
N2 - TOI-1899 b is a rare exoplanet, a temperate warm Jupiter orbiting an M dwarf, first discovered by Cañas et al. (2020) from a TESS single-transit event. Using new radial velocities (RVs) from the precision RV spectrographs HPF and NEID, along with additional TESS photometry and ground-based transit follow-up, we are able to derive a much more precise orbital period of P = 29.090312−0.000035+0.000036 days, along with a radius of Rp = 0.99 ± 0.03 RJ. We have also improved the constraints on planet mass, Mp = 0.67 ± 0.04 MJ, and eccentricity, which is consistent with a circular orbit at 2σ ( e = 0.044−0.027+0.029 ). TOI-1899 b occupies a unique region of parameter space as the coolest known (Teq ≈ 380 K) Jovian-sized transiting planet around an M dwarf; we show that it has great potential to provide clues regarding the formation and migration mechanisms of these rare gas giants through transmission spectroscopy with JWST, as well as studies of tidal evolution.
AB - TOI-1899 b is a rare exoplanet, a temperate warm Jupiter orbiting an M dwarf, first discovered by Cañas et al. (2020) from a TESS single-transit event. Using new radial velocities (RVs) from the precision RV spectrographs HPF and NEID, along with additional TESS photometry and ground-based transit follow-up, we are able to derive a much more precise orbital period of P = 29.090312−0.000035+0.000036 days, along with a radius of Rp = 0.99 ± 0.03 RJ. We have also improved the constraints on planet mass, Mp = 0.67 ± 0.04 MJ, and eccentricity, which is consistent with a circular orbit at 2σ ( e = 0.044−0.027+0.029 ). TOI-1899 b occupies a unique region of parameter space as the coolest known (Teq ≈ 380 K) Jovian-sized transiting planet around an M dwarf; we show that it has great potential to provide clues regarding the formation and migration mechanisms of these rare gas giants through transmission spectroscopy with JWST, as well as studies of tidal evolution.
UR - http://www.scopus.com/inward/record.url?scp=85167932764&partnerID=8YFLogxK
U2 - 10.3847/1538-3881/ace1ef
DO - 10.3847/1538-3881/ace1ef
M3 - Article
AN - SCOPUS:85167932764
SN - 0004-6256
VL - 166
SP - 1
EP - 22
JO - Astronomical Journal
JF - Astronomical Journal
IS - 3
M1 - 90
ER -