SIMBAD references

2024AJ....167....4H - Astron. J., 167, 4 (2024/January-0)

TOI-5344 b: A Saturn-like Planet Orbiting a Super-solar Metallicity M0 Dwarf.

HAN T., ROBERTSON P., KANODIA S., CANAS C., LIN A.S.J., STEFANSSON G., LIBBY-ROBERTS J.E., LARSEN A., KOBULNICKY H.A., MAHADEVAN S., BENDER C.F., COCHRAN W.D., ENDL M., EVERETT M.E., GUPTA A.F., HALVERSON S., HEARTY F., MONSON A., NINAN J.P., ROY A., SCHWAB C. and TERRIEN R.C.

Abstract (from CDS):

We confirm the planetary nature of TOI-5344 b as a transiting giant exoplanet around an M0-dwarf star. TOI-5344 b was discovered with the Transiting Exoplanet Survey Satellite photometry and confirmed with ground-based photometry (the Red Buttes Observatory 0.6 m telescope), radial velocity (the Habitable-zone Planet Finder), and speckle imaging (the NN-Explore Exoplanet Stellar Speckle Imager). TOI-5344 b is a Saturn-like giant planet (ρ = 0.80 ${}_{-0.15}^{+0.17}$ g cm–3) with a planetary radius of 9.7 ± 0.5 R⊕ (0.87 ± 0.04 RJup) and a planetary mass of ${135}_{-18}^{+17}\ {M}_{\oplus }$ (0.42 ${}_{-0.06}^{+0.05}\ {M}_{\mathrm{Jup}}$). It has an orbital period of ${3.792622}_{-0.000010}^{+0.000010}$ days and an orbital eccentricity of ${0.06}_{-0.04}^{+0.07}$. We measure a high metallicity for TOI-5344 of [Fe/H] = 0.48 ± 0.12, where the high metallicity is consistent with expectations from formation through core accretion. We compare the metallicity of the M-dwarf hosts of giant exoplanets to that of M-dwarf hosts of nongiants (≲8 R⊕). While the two populations appear to show different metallicity distributions, quantitative tests are prohibited by various sample caveats.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Exoplanet systems - Extrasolar gaseous giant planets - M dwarf stars

Simbad objects: 25

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