2023AJ....166..163H

Query : 2023AJ....166..163H

2023AJ....166..163H - Astron. J., 166, 163 (2023/October-0)

TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets around M-dwarf Stars and Revised Parameters for Three Others.

HARTMAN J.D., BAKOS G.A., CSUBRY Z., HOWARD A.W., ISAACSON H., GIACALONE S., CHONTOS A., NARITA N., FUKUI A., DE LEON J.P., WATANABE N., MORI M., KAGETANI T., FUKUDA I., KAWAI Y., IKOMA M., PALLE E., MURGAS F., ESPARZA-BORGES E., PARVIAINEN H., BOUMA L.G., COINTEPAS M., BONFILS X., ALMENARA J.M., COLLINS K.A., COLLINS K.I., RELLES H.M., BARKAOUI K., SCHWARZ R.P., MOURAD G., TIMMERMANS M., DRANSFIELD G., BURDANOV A., DE WIT J., JEHIN E., TRIAUD A.H.M.J., GILLON M., BENKHALDOUN Z., HORNE K., SEFAKO R., JORDAN A., BRAHM R., SUC V., HOWELL S.B., FURLAN E., SCHLIEDER J.E., CIARDI D., BARCLAY T., GONZALES E.J., CROSSFIELD I., DRESSING C.D., GOLIGUZOVA M., TATARNIKOV A., RICKER G.R., VANDERSPEK R., LATHAM D.W., SEAGER S., WINN J.N., JENKINS J.M., STRIEGEL S., SHPORER A., VANDERBURG A., LEVINE A.M., KOSTOV V.B. and WATANABE D.

Abstract (from CDS):

We present the discovery from the TESS mission of two giant planets transiting M-dwarf stars: TOI 4201 b and TOI 5344 b. We also provide precise radial velocity measurements and updated system parameters for three other M dwarfs with transiting giant planets: TOI 519, TOI 3629, and TOI 3714. We measure planetary masses of 0.525 ± 0.064 MJ, 0.243 ± 0.020 MJ, 0.689 ± 0.030 MJ, 2.57 ± 0.15MJ, and 0.412±0.040 MJ for TOI 519 b, TOI 3629 b, TOI 3714 b, TOI 4201 b, and TOI 5344 b, respectively. The corresponding stellar masses are 0.372 ± 0.018 M☉, 0.635 ± 0.032 M☉, 0.522 ± 0.028 M☉, 0.626 ± 0.033 M☉, and 0.612 ± 0.034 M☉. All five hosts have supersolar metallicities, providing further support for recent findings that, like for solar-type stars, close-in giant planets are preferentially found around metal-rich M-dwarf host stars. Finally, we describe a procedure for accounting for systematic errors in stellar evolution models when those models are included directly in fitting a transiting planet system.

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

Journal keyword(s): Exoplanet systems

Simbad objects: 10

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Number of rows : 10
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 TOI-5344 * 04 13 03.8473531015 +20 54 54.908626629           ~ 6 0
2 TOI-5344b Pl 04 13 03.8473531015 +20 54 54.908626629           ~ 14 0
3 TOI-3714b Pl 04 38 12.5354290272 +39 27 29.909322841           ~ 28 0
4 TOI-3714 PM* 04 38 12.5354290272 +39 27 29.909322841   16.856 15.273 14.857   M1.5V 20 0
5 TOI-4201 * 06 01 53.9212150000 -13 27 41.029186668           M1.5V 14 0
6 TOI-4201b Pl 06 01 53.9212150000 -13 27 41.029186668           ~ 20 0
7 TOI-519b Pl 08 18 25.6680189408 -19 39 46.501007184           ~ 28 0
8 TOI-519 PM* 08 18 25.6680189408 -19 39 46.501007184   17.869 17.350     M2.5V 21 0
9 NAME LP 291-36b Pl 23 59 10.1643961200 +39 18 51.304384620           ~ 22 0
10 LP 291-36 PM* 23 59 10.1643961200 +39 18 51.304384620   15.7   14.0   M0.0V 17 0

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