2020MNRAS.499.3139B

Query : 2020MNRAS.499.3139B

2020MNRAS.499.3139B - Mon. Not. R. Astron. Soc., 499, 3139-3148 (2020/December-2)

NGTS-12b: A sub-Saturn mass transiting exoplanet in a 7.53 day orbit.

BRYANT E.M., BAYLISS D., NIELSEN L.D., VERAS D., ACTON J.S., ANDERSON D.R., ARMSTRONG D.J., BOUCHY F., BRIEGAL J.T., BURLEIGH M.R., CABRERA J., CASEWELL S.L., CHAUSHEV A., COOKE B.F., CSIZMADIA S., EIGMULLER P., ERIKSON A., GILL S., GILLEN E., GOAD M.R., GRIEVES N., GUNTHER M.N., HENDERSON B., HOGAN A., JENKINS J.S., LENDL M., McCORMAC J., MOYANO M., QUELOZ D., RAUER H., RAYNARD L., SMITH A.M.S., TILBROOK R.H., UDRY S., VINES J.I., WATSON C.A., WEST R.G. and WHEATLEY P.J.

Abstract (from CDS):

We report the discovery of the transiting exoplanet NGTS-12b by the Next Generation Transit Survey (NGTS). The host star, NGTS-12, is a V = 12.38 mag star with an effective temperature of Teff = 5690 ± 130 K. NGTS-12b orbits with a period of P = 7.53 d, making it the longest period planet discovered to date by the main NGTS survey. We verify the NGTS transit signal with data extracted from the Transiting Exoplanet Survey Satellite (TESS) full-frame images, and combining the photometry with radial velocity measurements from HARPS and FEROS we determine NGTS-12b to have a mass of 0.208 ± 0.022 MJ and a radius of 1.048 ± 0.032 RJ. NGTS-12b sits on the edge of the Neptunian desert when we take the stellar properties into account, highlighting the importance of considering both the planet and star when studying the desert. The long period of NGTS-12b combined with its low density of just 0.223 ± 0.029 g cm–3 make it an attractive target for atmospheric characterization through transmission spectroscopy with a Transmission Spectroscopy Metric of 89.4.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): techniques: photometric - stars: individual: NGTS-12 - planetary systems - planets and satellites: detection

Simbad objects: 3

goto Full paper

goto View the references in ADS

Number of rows : 3
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 NGTS-12b Pl 11 45 00.0095307384 -35 38 26.140495956           ~ 3 0
2 NGTS-12 * 11 45 00.0095307384 -35 38 26.140495956   12.97 12.27 12.25   ~ 8 0
3 WASP-107b Pl 12 33 32.8441110816 -10 08 46.225572324           ~ 289 0

To bookmark this query, right click on this link: simbad:objects in 2020MNRAS.499.3139B and select 'bookmark this link' or equivalent in the popup menu