SIMBAD references

2020AJ....160..111M - Astron. J., 160, 111-111 (2020/September-0)

KELT-25 b and KELT-26 b: a hot Jupiter and a substellar companion transiting young a stars observed by TESS.

MARTINEZ R.R., GAUDI B.S., RODRIGUEZ J.E., ZHOU G., LABADIE-BARTZ J., QUINN S.N., PENEV K., TAN T.-G., LATHAM D.W., PAREDES L.A., KIELKOPF J.F., ADDISON B., WRIGHT D.J., TESKE J., HOWELL S.B., CIARDI D., ZIEGLER C., STASSUN K.G., JOHNSON M.C., EASTMAN J.D., SIVERD R.J., BEATTY T.G., BOUMA L., BEDDING T., PEPPER J., WINN J., LUND M.B., VILLANUEVA S., STEVENS D.J., JENSEN E.L.N., KILBY C., CRANE J.D., TOKOVININ A., EVERETT M.E., TINNEY C.G., FAUSNAUGH M., COHEN D.H., BAYLISS D., BIERYLA A., CARGILE P.A., COLLINS K.A., CONTI D.M., COLON K.D., CURTIS I.A., DEPOY D.L., EVANS P., FELIZ D.L., GREGORIO J., ROTHENBERG J., JAMES D.J., JONER M.D., KUHN R.B., MANNER M., KHAKPASH S., MARSHALL J.L., McLEOD K.K., PENNY M.T., REED P.A., RELLES H.M., STEPHENS D.C., STOCKDALE C., TRUEBLOOD M., TRUEBLOOD P., YAO X., ZAMBELLI R., VANDERSPEK R., SEAGER S., JENKINS J.M., HENRY T.J., JAMES H.-S., JAO W.-C., WANG S.X., BUTLER P., THOMPSON I., SHECTMAN S., WITTENMYER R., BOWLER B.P., HORNER J., KANE S.R., MENGEL M.W., MORTON T.D., OKUMURA J., PLAVCHAN P., ZHANG H., SCOTT N.J., MATSON R.A., MANN A.W., DRAGOMIR D., GUNTHER M., TING E.B., GLIDDEN A. and QUINTANA E.V.

Abstract (from CDS):

We present the discoveries of KELT-25 b (TIC 65412605, TOI-626.01) and KELT-26 b (TIC 160708862, TOI-1337.01), two transiting companions orbiting relatively bright, early A stars. The transit signals were initially detected by the KELT survey and subsequently confirmed by Transiting Exoplanet Survey Satellite (TESS) photometry. KELT-25 b is on a 4.40 day orbit around the V = 9.66 star CD-24 5016 (T_eff=8280_–180⁺⁴⁴⁰ K, M_* = 2.18_–0.11^+0.12M_☉), while KELT-26 b is on a 3.34 day orbit around the V = 9.95 star HD 134004 (T_eff = 8640_–240⁺⁵⁰⁰ K, M_* = 1.93_–0.16^+0.14M_☉), which is likely an Am star. We have confirmed the substellar nature of both companions through detailed characterization of each system using ground-based and TESS photometry, radial velocity measurements, Doppler tomography, and high-resolution imaging. For KELT-25, we determine a companion radius of R_P = 1.64_–0.043^+0.039R_J and a 3σ upper limit on the companion's mass of ∼64 M_J. For KELT-26 b, we infer a planetary mass and radius of M_P = 1.41_–0.51^+0.43M_J and R_P = 1.94_–0.058^+0.060R_J. From Doppler tomographic observations, we find KELT-26 b to reside in a highly misaligned orbit. This conclusion is weakly corroborated by a subtle asymmetry in the transit light curve from the TESS data. KELT-25 b appears to be in a well-aligned, prograde orbit, and the system is likely a member of the cluster Theia 449.

Journal keyword(s): Exoplanet astronomy - Transit photometry - Radial velocity

Status at CDS : Associated data (images, light curves, etc...) being ingested in VizieR. // Tables of objects will be appraised for possible ingestion in SIMBAD.

Simbad objects: 19

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