SIMBAD references

2020AJ....160..153B - Astron. J., 160, 153-153 (2020/October-0)

TOI-824 b: a new planet on the lower edge of the hot Neptune desert.

BURT J.A., NIELSEN L.D., QUINN S.N., MAMAJEK E.E., MATTHEWS E.C., ZHOU G., SEIDEL J.V., HUANG C.X., LOPEZ E., SOTO M., OTEGI J., STASSUN K.G., KREIDBERG L., COLLINS K.A., EASTMAN J.D., RODRIGUEZ J.E., VANDERBURG A., HALVERSON S.P., TESKE J.K., WANG S.X., BUTLER R.P., BOUCHY F., DUMUSQUE X., SEGRANSEN D., SHECTMAN S.A., CRANE J.D., FENG F., MONTET B.T., FEINSTEIN A.D., BELETSKI Y., FLOWERS E., GUNTHER M.N., DAYLAN T., COLLINS K.I., CONTI D.M., GAN T., JENSEN E.L.N., KIELKOPF J.F., TAN T.-G., HELLED R., DORN C., HALDEMANN J., LISSAUER J.J., RICKER G.R., VANDERSPEK R., LATHAM D.W., SEAGER S., WINN J.N., JENKINS J.M., TWICKEN J.D., SMITH J.C., TENENBAUM P., CARTWRIGHT S., BARCLAY T., PEPPER J., ESQUERDO G. and FONG W.

Abstract (from CDS):

We report the detection of a transiting hot Neptune exoplanet orbiting TOI-824 (SCR J1448-5735), a nearby (d = 64 pc) K4V star, using data from the Transiting Exoplanet Survey Satellite. The newly discovered planet has a radius Rp = 2.93 ± 0.20 R⊕ and an orbital period of 1.393 days. Radial velocity measurements using the Planet Finder Spectrograph and the High Accuracy Radial velocity Planet Searcher spectrograph confirm the existence of the planet, and we estimate its mass to be 18.47 ± 1.84 M⊕. The planet's mean density is ρp = 4.03–0.78+0.98gcm–3, making it more than twice as dense as Neptune. TOI-824 b's high equilibrium temperature makes the planet likely to have a cloud-free atmosphere, and thus it is an excellent candidate for follow-up atmospheric studies. The detectability of TOI-824 b's atmosphere from both ground and space is promising and could lead to the detailed characterization of the most irradiated small planet at the edge of the hot Neptune desert that has retained its atmosphere to date.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Exoplanet astronomy - Exoplanet detection methods - Exoplanets - Transit photometry - Radial velocity - Stellar properties

Simbad objects: 18

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