2024ApJ...962L..22D

Query : 2024ApJ...962L..22D

2024ApJ...962L..22D - Astrophys. J., 962, L22 (2024/February-3)

TOI-4201: An Early M Dwarf Hosting a Massive Transiting Jupiter Stretching Theories of Core Accretion.

DELAMER M., KANODIA S., CANAS C.I., MULLER S., HELLED R., LIN A.S.J., LIBBY-ROBERTS J.E., GUPTA A.F., MAHADEVAN S., TESKE J., BUTLER R.P., YEE S.W., CRANE J.D., SHECTMAN S., OSIP D., BELETSKY Y., MONSON A., HEBB L., POWERS L.C., WISNIEWSKI J.P., ALVARADO-MONTES J.A., BENDER C.F., DONG J., HAN T., NINAN J.P., ROBERTSON P., ROY A., SCHWAB C., STEFANSSON G. and WRIGHT J.T.

Abstract (from CDS):

We confirm TOI-4201 b as a transiting Jovian-mass planet orbiting an early M dwarf discovered by the Transiting Exoplanet Survey Satellite. Using ground-based photometry and precise radial velocities from NEID and the Planet Finder Spectrograph, we measure a planet mass of ${2.59}_{-0.06}^{+0.07}$MJ, making this one of the most massive planets transiting an M dwarf. The planet is ∼0.4% of the mass of its 0.63 M⊙ host and may have a heavy-element mass comparable to the total dust mass contained in a typical class II disk. TOI-4201 b stretches our understanding of core accretion during the protoplanetary phase and the disk mass budget, necessitating giant planet formation to take place either much earlier in the disk lifetime or perhaps through alternative mechanisms like gravitational instability.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Exoplanet detection methods - Exoplanet astronomy - Exoplanet formation - Exoplanets - Radial velocity - Transit photometry - Extrasolar gaseous giant planets

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Per Region reg 03 37 00.0 +31 15 00           ~ 296 0
2 HATS-76b Pl 04 41 21.5506000450 -32 19 12.904462773           ~ 13 0
3 HATS-6b Pl 05 52 35.2366980288 -19 01 53.970810276           ~ 67 0
4 TOI-4201 * 06 01 53.9212150000 -13 27 41.029186668           M1.5V 14 0
5 TOI-4201b Pl 06 01 53.9212150000 -13 27 41.029186668           ~ 20 0
6 HATS-77b Pl 09 59 17.7087872086 -27 23 34.014295207           ~ 9 0
7 GJ 463 b Pl? 12 23 00.1603475794 +64 01 50.965179127           ~ 9 0
8 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0

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