SIMBAD references

2023A&A...675A..39P - Astronomy and Astrophysics, volume 675A39 (2023/7-1)

Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS TOI-615b, TOI-622b, and TOI-2641b.

PSARIDI A., BOUCHY F., LENDL M., AKINSANMI B., STASSUN K.G., SMALLEY B., ARMSTRONG D.J., HOWARD S., ULMER-MOLL S., GRIEVES N., BARKAOUI K., RODRIGUEZ J.E., BRYANT E.M., SUAREZ O., GUILLOT T., EVANS P., ATTIA O., WITTENMYER R.A., YEE S.W., COLLINS K.A., ZHOU G., GALLAND F., PARC L., UDRY S., FIGUEIRA P., ZIEGLER C., MORDASINI C., WINN J.N., SEAGER S., JENKINS J.M., TWICKEN J.D., BRAHM R., JONES M.I., ABE L., ADDISON B., BRICENO C., BRIEGAL J.T., COLLINS K.I., DAYLAN T., EIGMULLER P., FURESZ G., GUERRERO N.M., HAGELBERG J., HEITZMANN A., HOUNSELL R., HUANG C.X., KRENN A., LAW N.M., MANN A.W., McCORMAC J., MEKARNIA D., MOUNZER D., NIELSEN L.D., OSBORN A., REINARZ Y., SEFAKO R.R., STEINER M., STROM P.A., TRIAUD A.H.M.J., VANDERSPEK R., VANZI L., VINES J.I., WATSON C.A., WRIGHT D.J. and ZAPATA A.

Abstract (from CDS):

While the sample of confirmed exoplanets continues to grow, the population of transiting exoplanets around early-type stars is still limited. These planets allow us to investigate the planet properties and formation pathways over a wide range of stellar masses and study the impact of high irradiation on hot Jupiters orbiting such stars. We report the discovery of TOI-615b, TOI-622b, and TOI-2641b, three Saturn-mass planets transiting main sequence, F-type stars. The planets were identified by the Transiting Exoplanet Survey Satellite (TESS) and confirmed with complementary ground-based and radial velocity observations. TOI-615b is a highly irradiated (∼1277 F^⊕) and bloated Saturn-mass planet ( $1.69_{ - 0.06}^{ + 0.05}{R_{{\rm{Jup}}}}$ and $0.43_{ - 0.08}^{ + 0.09}{M_{{\rm{Jup}}}}$ ) in a 4.66 day orbit transiting a 6850 K star. TOI-622b has a radius of $0.82_{ - 0.03}^{ + 0.03}{R_{{\rm{Jup}}}}$ and a mass of $0.30_{ - 0.08}^{ + 0.07}{M_{{\rm{Jup}}}}$ in a 6.40 day orbit. Despite its high insolation flux (∼600 F^⊕), TOI-622b does not show any evidence of radius inflation. TOI-2641b is a $0.39_{ - 0.04}^{ + 0.02}{M_{{\rm{Jup}}}}$ planet in a 4.88 day orbit with a grazing transit ( ${\rm{b}} = 1.04_{ - 0.06}^{ + 0.05}$ ) that results in a poorly constrained radius of $1.61_{ - 0.64}^{ + 0.46}{R_{{\rm{Jup}}}}$ . Additionally, TOI-615b is considered attractive for atmospheric studies via transmission spectroscopy with ground-based spectrographs and JWST. Future atmospheric and spin-orbit alignment observations are essential since they can provide information on the atmospheric composition, formation, and migration of exoplanets across various stellar types.

Abstract Copyright: © The Authors 2023

Journal keyword(s): planets and satellites: individual: TOI-615b - planets and satellites: individual: TOI-622b - stars: early-type - techniques: photometric - techniques: radial velocities - planets and satellites: individual: TOI-2641b

VizieR on-line data: <Available at CDS (J/A+A/675/A39): stars.dat lcs.dat rvs.dat>

Simbad objects: 34

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