SIMBAD references

2023MNRAS.522..750D - Mon. Not. R. Astron. Soc., 522, 750-766 (2023/June-2)

A sub-Neptune transiting the young field star HD 18599 at 40 pc.

DE LEON J.P., LIVINGSTON J.H., JENKINS J.S., VINES J.I., WITTENMYER R.A., CLARK J.T., WINN J.I.M., ADDISON B., BALLARD S., BAYLISS D., BEICHMAN C., BENNEKE B., BERARDO D.A., BOWLER B.P., BROWN T., BRYANT E.M., CHRISTIANSEN J., CIARDI D., COLLINS K.A., COLLINS K.I., CROSSFIELD I., DEMING D., DRAGOMIR D., DRESSING C.D., FUKUI A., GAN T., GIACALONE S., GILL S., GORJIAN V., GONZALEZ ALVAREZ E., HESSE K., HORNER J., HOWELL S.B., JENKINS J.M., KANE S.R., KENDALL A., KIELKOPF J.F., KREIDBERG L., LATHAM D.W., LIU H., LUND M.B., MATSON R., MATTHEWS E., MENGEL M.W., MORALES F., MORI M., NARITA N., NISHIUMI T., OKUMURA J., PLAVCHAN P., QUINN S., RABUS M., RICKER G., RUDAT A., SCHLIEDER J., SCHWARZ R.P., SEAGER S., SHPORER A., SMITH A.M.S., STASSUN K., TAMURA M., TAN T.G., TINNEY C., VANDERSPEK R., WERNER M.W., WEST R.G., WRIGHT D., ZHANG H. and ZHOU G.

Abstract (from CDS):

Transiting exoplanets orbiting young nearby stars are ideal laboratories for testing theories of planet formation and evolution. However, to date only a handful of stars with age <1 Gyr have been found to host transiting exoplanets. Here we present the discovery and validation of a sub-Neptune around HD 18599 , a young (300 Myr), nearby (d = 40 pc) K star. We validate the transiting planet candidate as a bona fide planet using data from the TESS , Spitzer , and Gaia missions, ground-based photometry from IRSF , LCO , PEST , and NGTS , speckle imaging from Gemini, and spectroscopy from CHIRON , NRES , FEROS , and MINERVA-Australis . The planet has an orbital period of 4.13 d , and a radius of 2.7 R⊕ . The RV data yields a 3-σ mass upper limit of 30.5 M⊕ which is explained by either a massive companion or the large observed jitter typical for a young star. The brightness of the host star (V∼9 mag) makes it conducive to detailed characterization via Doppler mass measurement which will provide a rare view into the interior structure of young planets.

Abstract Copyright: © 2023 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): techniques: radial velocities - techniques: spectroscopic - planets and satellites: detection - stars: individual: TOI-179

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

CDS comments: DS Tau Ab is a misprint for DS Tuc Ab.

Simbad objects: 25

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