2023A&A...677A..31G

Query : 2023A&A...677A..31G

2023A&A...677A..31G - Astronomy and Astrophysics, volume 677A31 (2023/9-1)

TESS discovery of a super-Earth orbiting the M-dwarf star TOI-1680.

GHACHOUI M., SOUBKIOU A., WELLS R.D., RACKHAM B.V., TRIAUD A.H.M.J., SEBASTIAN D., GIACALONE S., STASSUN K.G., CIARDI D.R., COLLINS K.A., LIU A., GOMEZ MAQUEO CHEW Y., GILLON M., BENKHALDOUN Z., DELREZ L., EASTMAN J.D., DEMANGEON O., BARKAOUI K., BURDANOV A., DEMORY B.-O., DE WIT J., DRANSFIELD G., DUCROT E., GARCIA L., GOMEZ-MUNOZ M.A., HOOTON M.J., JEHIN E., MURRAY C.A., PEDERSEN P.P., POZUELOS F.J., QUELOZ D., SABIN L., SCHANCHE N., TIMMERMANS M., GONZALES E.J., DRESSING C.D., AGANZE C., BURGASSER A.J., GERASIMOV R., HSU C., THEISSEN C.A., CHARBONNEAU D., JENKINS J.M., LATHAM D.W., RICKER G., SEAGER S., SHPORER A., TWICKEN J.D., VANDERSPEK R., WINN J.N., COLLINS K.I., FUKUI A., GAN T., NARITA N. and SCHWARZ R.P.

Abstract (from CDS):

We report the discovery by the TESS mission of a super-Earth on a 4.8-days orbit around an inactive M4.5 dwarf (TOI-1680), validated by ground-based facilities. The host star is located 37.14 pc away, with a radius of 0.2100 ± 0.0064 R⊙, mass of 0.1800 ± 0.0044 M⊙, and an effective temperature of 3211 ±100 K. We validated and characterized the planet using TESS data, ground-based multi-wavelength photometry from TRAPPIST, SPECULOOS, and LCO, as well as high-resolution AO observations from Keck/NIRC2 and Shane. Our analyses have determined the following parameters for the planet: a radius of 1.466–0.049+0.063R⊕ and an equilibrium temperature of 404 ± 14 K, assuming no albedo and perfect heat redistribution. Assuming a mass based on mass-radius relations, this planet is a promising target for atmospheric characterization with the James Webb Space Telescope (JWST).

Abstract Copyright: © The Authors 2023

Journal keyword(s): techniques: photometric - planets and satellites: detection

Simbad objects: 27

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Number of rows : 27
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 LP 890-9 PM* 04 16 31.1617564071 -28 18 52.954336524     17.47     M6.0 25 0
2 NAME LP 890-9b Pl 04 16 31.1617564071 -28 18 52.954336524           ~ 10 0
3 NAME LP 890-9c Pl 04 16 31.1617564071 -28 18 52.954336524           ~ 23 0
4 BD+05 1668 PM* 07 27 24.4989685603 +05 13 32.841491057 12.558 11.443 9.872 8.699 7.161 M3.5V 477 0
5 NAME G 41-26b Pl 09 08 48.8546081084 +11 51 41.116103152           ~ 7 0
6 TOI-2096b Pl 10 06 28.5905621766 +74 49 39.122852833           ~ 8 0
7 NAME LP 791-18d Pl 11 02 45.9546199392 -16 24 22.288196376           ~ 12 0
8 LP 791-18 PM* 11 02 45.9546199392 -16 24 22.288196376           M6V 50 0
9 HD 172728 PM* 18 37 33.5174187456 +62 31 35.673279564 5.530 5.690 5.740     A0V 82 0
10 Kepler-42d Pl 19 28 52.5688740811 +44 37 08.989819665           ~ 43 1
11 UCAC4 780-032483 * 19 29 10.4027921477 +65 58 30.822070864           ~ 1 0
12 PSO J292.3105+65.9731 * 19 29 14.5162623015 +65 58 23.402151921           ~ 1 0
13 TOI-1680b Pl 19 29 15.2115910340 +65 58 27.727202112           ~ 6 0
14 TOI-1680 PM* 19 29 15.2115910340 +65 58 27.727202112       15.192   ~ 9 0
15 2MASS J19292123+6558161 * 19 29 21.2265105728 +65 58 16.109133766           ~ 1 0
16 HD 205113 SB* 21 31 01.3514130984 +59 25 05.374495704   7.54 6.87     G2.5V 33 0
17 * 51 Peg b Pl 22 57 27.9804852576 +20 46 07.797040104           ~ 744 1
18 TRAPPIST-1b Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 380 0
19 TRAPPIST-1c Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 282 0
20 TRAPPIST-1d Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 263 0
21 TRAPPIST-1e Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 384 0
22 TRAPPIST-1f Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 281 0
23 TRAPPIST-1g Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 237 0
24 TRAPPIST-1h Pl 23 06 29.3684948589 -05 02 29.037301866           ~ 162 0
25 TRAPPIST-1 LM* 23 06 29.3684948589 -05 02 29.037301866     18.798 16.466 14.024 M7.5e 1306 0
26 Feige 110 HS* 23 19 58.3996844256 -05 09 56.171142864 10.360 11.45 11.50 11.970 12.145 sdO8VIIIHe5 673 1
27 TOI-237b Pl 23 32 58.2700309449 -29 24 54.190916756           ~ 15 0

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