2023AJ....166...90L

Query : 2023AJ....166...90L

2023AJ....166...90L - Astron. J., 166, 90 (2023/September-0)

The Unusual M-dwarf Warm Jupiter TOI-1899 b: Refinement of Orbital and Planetary Parameters.

LIN A.S.J., LIBBY-ROBERTS J.E., ALVARADO-MONTES J.A., CANAS C.I., KANODIA S., HAN T., HEBB L., JENSEN E.L.N., MAHADEVAN S., POWERS L.C., SWABY T.N., WISNIEWSKI J., BEARD C., BENDER C.F., BLAKE C.H., COCHRAN W.D., DIDDAMS S.A., FRAZIER R.C., FREDRICK C., GULLY-SANTIAGO M., HALVERSON S., LOGSDON S.E., McELWAIN M.W., MORLEY C., NINAN J.P., RAJAGOPAL J., RAMSEY L.W., ROBERTSON P., ROY A., SCHWAB C., STEFANSSON G., STEVENS D.J., TERRIEN R.C. and WRIGHT J.T.

Abstract (from CDS):

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.

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

Journal keyword(s): Radial velocity - Transit photometry - Extrasolar gaseous planets

VizieR on-line data: <Available at CDS (J/AJ/166/90): table1.dat fig2a.dat fig2d.dat fig2p.dat fig2t14.dat fig2t15.dat fig2t41.dat fig2t54.dat fig2t55.dat fig10.dat>

Simbad objects: 9

goto Full paper

goto View the references in ADS

Number of rows : 9
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 K2-387b Pl 01 17 46.0365575544 +11 22 06.875859828           ~ 6 0
2 Gaia-1b Pl? 06 02 34.4736154831 -00 34 36.965616383           ~ 6 0
3 Gaia-2b Pl? 07 22 56.4611561208 +67 15 09.190492416           ~ 6 0
4 K2-18b Pl 11 30 14.5177445592 +07 35 18.255348492           ~ 303 0
5 TOI-1227b Pl 12 27 04.3053248184 -72 27 06.492769776           ~ 30 0
6 Kepler-1628b Pl 18 46 32.0864719855 +43 24 41.596803119           ~ 15 0
7 TOI-1899 * 19 57 42.3954352512 +40 08 35.754385020   15.898 14.303 13.747   M0.5V 19 0
8 TOI-1899b Pl 19 57 42.3954352512 +40 08 35.754385020           ~ 26 0
9 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 2037 1

To bookmark this query, right click on this link: simbad:objects in 2023AJ....166...90L and select 'bookmark this link' or equivalent in the popup menu