SIMBAD references

2021AJ....161...82S - Astron. J., 161, 82-82 (2021/February-0)

TOI-954 b and K2-329 b: short-period Saturn-mass planets that test whether irradiation leads to inflation.

SHA L., HUANG C.X., SHPORER A., RODRIGUEZ J.E., VANDERBURG A., BRAHM R., HAGELBERG J., MATTHEWS E.C., ZIEGLER C., LIVINGSTON J.H., STASSUN K.G., WRIGHT D.J., CRANE J.D., ESPINOZA N., BOUCHY F., BAKOS G.A., COLLINS K.A., ZHOU G., BIERYLA A., HARTMAN J.D., WITTENMYER R.A., NIELSEN L.D., PLAVCHAN P., BAYLISS D., SARKIS P., TAN T.-G., CLOUTIER R., MANCINI L., JORDAN A., WANG S., HENNING T., NARITA N., PENEV K., TESKE J.K., KANE S.R., MANN A.W., ADDISON B.C., TAMURA M., HORNER J., BARBIERI M., BURT J.A., DIAZ M.R., CROSSFIELD I.J.M., DRAGOMIR D., DRASS H., FEINSTEIN A.D., ZHANG H., HART R., KIELKOPF J.F., JENSEN E.L.N., MONTET B.T., OTTONI G., SCHWARZ R.P., ROJAS F., NESPRAL D., TORRES P., MENGEL M.W., UDRY S., ZAPATA A., SNODDY E., OKUMURA J., RICKER G.R., VANDERSPEK R.K., LATHAM D.W., WINN J.N., SEAGER S., JENKINS J.M., COLON K.D., HENZE C.E., KRISHNAMURTHY A., TING E.B., VEZIE M. and VILLANUEVA S.

Abstract (from CDS):

We report the discovery of two short-period Saturn-mass planets, one transiting the G subgiant TOI-954 (TIC 44792534, V = 10.343, T = 9.78) observed in TESS sectors 4 and 5 and one transiting the G dwarf K2-329 (EPIC 246193072, V = 12.70, K = 10.67) observed in K2 campaigns 12 and 19. We confirm and characterize these two planets with a variety of ground-based archival and follow-up observations, including photometry, reconnaissance spectroscopy, precise radial velocity, and high-resolution imaging. Combining all available data, we find that TOI-954 b has a radius of 0.852–0.062+0.053RJ and a mass of 0.174–0.017+0.018 MJ and is in a 3.68 day orbit, while K2-329 b has a radius of 0.774–0.024+0.026RJ and a mass of 0.260–0.022+0.020 MJ and is in a 12.46 day orbit. As TOI-954 b is 30 times more irradiated than K2-329 b but more or less the same size, these two planets provide an opportunity to test whether irradiation leads to inflation of Saturn-mass planets and contribute to future comparative studies that explore Saturn-mass planets at contrasting points in their lifetimes.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Exoplanet systems - Photometry - Transit photometry - Spectroscopy - High resolution spectroscopy - RV - G stars - G dwarf stars - G subgiant stars - Hot Jupiters

VizieR on-line data: <Available at CDS (J/AJ/161/82): table[123456].dat table10.dat table11.dat>

Simbad objects: 7

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