2022A&A...667A..22K

Query : 2022A&A...667A..22K

2022A&A...667A..22K - Astronomy and Astrophysics, volume 667A22 (2022/11-1)

Confirmation and characterisation of three giant planets detected by TESS from the FIES/NOT and Tull/McDonald spectrographs.

KNUDSTRUP E., SERRANO L.M., GANDOLFI D., ALBRECHT S.H., COCHRAN W.D., ENDL M., MacQUEEN P., TRONSGAARD R., BIERYLA A., BUCHHAVE L.A., STASSUN K., COLLINS K.A., NOWAK G., DEEG H.J., BARKAOUI K., SAFONOV B.S., STRAKHOV I.A., BELINSKI A.A., TWICKEN J.D., JENKINS J.M., HOWARD A.W., ISAACSON H., WINN J.N., COLLINS K.I., CONTI D.M., FURESZ G., GAN T., KIELKOPF J.F., MASSEY B., MURGAS F., MURPHY L.G., PALLE E., QUINN S.N., REED P.A., RICKER G.R., SEAGER S., SHIAO B., SCHWARZ R.P., SRDOC G. and WATANABE D.

Abstract (from CDS):

We report the confirmation and characterisation of TOI-1820 b, TOI-2025 b, and TOI-2158 b, three Jupiter-sized planets on short-period orbits around G-type stars detected by TESS. Through our ground-based efforts using the FIES and Tull spectrographs, we have confirmed these planets and characterised their orbits, and find periods of around 4.9 d, 8.9 d, and 8.6 d for TOI-1820 b, TOI-2025 b, and TOI-2158 b, respectively. The sizes of the planets range from 0.96 to 1.14 Jupiter radii, and their masses are in the range from 0.8 to 4.4 Jupiter masses. For two of the systems, namely TOI-2025 and TOI-2158, we see a long-term trend in the radial velocities, indicating the presence of an outer companion in each of the two systems. For TOI-2025 we furthermore find the star to be well aligned with the orbit, with a projected obliquity of 9–31+33°. As these planets are all found in relatively bright systems (V ∼ 10.9-11.6 mag), they are well suited for further studies, which could help shed light on the formation and migration of hot and warm Jupiters.

Abstract Copyright: © E. Knudstrup et al. 2022

Journal keyword(s): planets and satellites: detection - planets and satellites: gaseous planets - planet-star interactions - techniques: radial velocities - techniques: photometric

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 HD 17156b Pl 02 49 44.4871034544 +71 45 11.629235988           ~ 197 1
2 Cl Melotte 111 OpC 12 11 54.9 +25 16 36           ~ 520 0
3 TOI-1820 PM* 12 30 44.7541043184 +27 27 07.725003660   11.73 10.90     ~ 5 0
4 TOI-1820b Pl 12 30 44.7541043184 +27 27 07.725003660           ~ 4 0
5 HD 147506b Pl 16 20 36.3576063720 +41 02 53.106772488           ~ 274 1
6 HD 348661 * 18 27 14.4611394456 +20 31 36.670805112   11.66 10.89     G5 9 0
7 HD 348661b Pl 18 27 14.4611394456 +20 31 36.670805112           ~ 6 0
8 TOI-2025b Pl 18 51 10.8387082992 +82 14 43.563652296           ~ 7 0
9 TOI-2025 * 18 51 10.8387082992 +82 14 43.563652296   12.48 11.60     ~ 9 0
10 HD 351766b Pl 20 12 46.8865572432 +18 06 17.402572008           ~ 50 1

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