2022A&A...666A.183K


Query : 2022A&A...666A.183K

2022A&A...666A.183K - Astronomy and Astrophysics, volume 666A, 183 (2022/10-1)

A warm super-Neptune around the G-dwarf star TOI-1710 revealed with TESS, SOPHIE, and HARPS-N.

KONIG P.-C., DAMASSO M., HEBRARD G., NAPONIELLO L., CORTES-ZULETA P., BIAZZO K., SANTOS N.C., BONOMO A.S., LECAVELIER DES ETANGS A., ZENG L., HOYER S., SOZZETTI A., AFFER L., ALMENARA J.M., BENATTI S., BIERYLA A., BOISSE I., BONFILS X., BOSCHIN W., CARMONA A., CLAUDI R., COLLINS K.A., DALAL S., DELEUIL M., DELFOSSE X., DEMANGEON O.D.S., DESIDERA S., DIAZ R.F., FORVEILLE T., HEIDARI N., HUSSAIN G.A.J., JENKINS J., KIEFER F., LACEDELLI G., LATHAM D.W., MALAVOLTA L., MANCINI L., MARTIOLI E., MICELA G., MILES-PAEZ P.A., MOUTOU C., NARDIELLO D., NASCIMBENI V., PINAMONTI M., PIOTTO G., RICKER G., SCHWARZ R.P., SEAGER S., STOGNONE R.G., STROM P.A., VANDERSPEK R., WINN J. and WITTROCK J.

Abstract (from CDS):

We report the discovery and characterization of the transiting extrasolar planet TOI-1710 b. It was first identified as a promising candidate by the Transiting Exoplanet Survey Satellite. Its planetary nature was then established with SOPHIE and HARPS-N spectroscopic observations via the radial-velocity method. The stellar parameters for the host star are derived from the spectra and a joint Markov chain Monte-Carlo adjustment of the spectral energy distribution and evolutionary tracks of TOI-1710. A joint MCMC analysis of the TESS light curve and the radial-velocity evolution allows us to determine the planetary system properties. From our analysis, TOI-1710 b is found to be a massive warm super-Neptune (Mp = 28.3 ± 4.7 M and Rp = 5.34 ± 0.11 R) orbiting a G5V dwarf star (Teff = 5665 ± 55 K) on a nearly circular 24.3-day orbit (e = 0.16 ± 0.08). The orbital period of this planet is close to the estimated rotation period of its host star Prot = 22.5 ± 2.0 days and it has a low Keplerian semi-amplitude K = 6.4 ± 1.0 m s–1; we thus performed additional analyses to show the robustness of the retrieved planetary parameters. With a low bulk density of 1.03 ± 0.23 g cm–3 and orbiting a bright host star (J = 8.3, V = 9.6), TOI-1710 b is one of the best targets in this mass-radius range (near the Neptunian desert) for atmospheric characterization via transmission spectroscopy, a key measurement in constraining planet formation and evolutionary models of sub-Jovian planets.

Abstract Copyright: © P.-C. König et al. 2022

Journal keyword(s): planetary systems - techniques: photometric - techniques: spectroscopic - techniques: radial velocities - star: activity

Simbad objects: 16

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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 BD+10 125b Pl 01 05 50.9463463104 +11 45 12.339525312           ~ 8 0
2 HD 19916b Pl 03 10 03.9822990984 -50 49 56.580324492           ~ 10 0
3 K2-79b Pl 03 41 01.4150992368 +13 31 09.713708508           ~ 9 0
4 TOI-942b Pl 05 06 35.8911413136 -20 14 44.143841292           ~ 19 0
5 TOI-942c Pl 05 06 35.8911413136 -20 14 44.143841292           ~ 12 0
6 PSO J094.2746+76.2103 * 06 17 05.9268771734 +76 12 37.217529620           ~ 1 0
7 TOI-1710b Pl 06 17 07.8623415000 +76 12 38.809391040           ~ 5 0
8 BD+76 227 PM* 06 17 07.8623415000 +76 12 38.809391040   10.20 9.54     G5 5 0
9 * rho01 Cnc b Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 259 1
10 BD+48 1829b Pl 10 02 21.7516616950 +48 05 19.685202030           ~ 6 0
11 HD 152843c Pl 16 55 08.3561051472 +20 29 28.794494940           ~ 3 0
12 HD 164595b Pl 18 00 38.8944915648 +29 34 18.921829044           ~ 7 0
13 Kepler-101b Pl 18 53 01.3205511624 +48 21 18.784380528           ~ 48 0
14 HD 332231b Pl 20 26 57.9179575032 +33 44 40.026384168           ~ 13 0
15 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 1862 1
16 CD-38 15670b Pl 23 54 40.2073116552 -37 37 40.524416508           ~ 46 0

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