SIMBAD references

2021A&A...656A.124K - Astronomy and Astrophysics, volume 656A, 124-124 (2021/12-1)

TOI-1201 b: A mini-Neptune transiting a bright and moderately young M dwarf.

KOSSAKOWSKI D., KEMMER J., BLUHM P., STOCK S., CABALLERO J.A., BEJAR V.J.S., GUILLEN C.C., LODIEU N., COLLINS K.A., OSHAGH M., SCHLECKER M., ESPINOZA N., PALLE E., HENNING T., KREIDBERG L., KURSTER M., AMADO P.J., ANDERSON D.R., MORALES J.C., CARTWRIGHT S., CHARBONNEAU D., CHATURVEDI P., CIFUENTES C., CONTI D.M., CORTES-CONTRERAS M., DREIZLER S., GALADI-ENRIQUEZ D., GUERRA P., HART R., HELLIER C., HENZE C., HERRERO E., JEFFERS S.V., JENKINS J.M., JENSEN E.L.N., KAMINSKI A., KIELKOPF J.F., KUNIMOTO M., LAFARGA M., LATHAM D.W., LILLO-BOX J., LUQUE R., MOLAVERDIKHANI K., MONTES D., MORELLO G., MORGAN E.H., NOWAK G., PAVLOV A., PERGER M., QUINTANA E.V., QUIRRENBACH A., REFFERT S., REINERS A., RICKER G., RIBAS I., LOPEZ C.R., ZAPATERO OSORIO M.R., SEAGER S., SCHOFER P., SCHWEITZER A., TRIFONOV T., VANAVERBEKE S., VANDERSPEK R., WEST R., WINN J. and ZECHMEISTER M.

Abstract (from CDS):

We present the discovery of a transiting mini-Neptune around TOI-1201, a relatively bright and moderately young early M dwarf (J ≃ 9.5 mag, ∼600-800 Myr) in an equal-mass ∼8 arcsecond-wide binary system, using data from the Transiting Exoplanet Survey Satellite, along with follow-up transit observations. With an orbital period of 2.49 d, TOI-1201 b is a warm mini-Neptune with a radius of Rb = 2.415 ± 0.090 R⊕. This signal is also present in the precise radial velocity measurements from CARMENES, confirming the existence of the planet and providing a planetary mass of Mb = 6.28 ± 0.88 M⊕ and, thus, an estimated bulk density of 2.45–0.42+0.48 g cm–3. The spectroscopic observations additionally show evidence of a signal with a period of 19 d and a long periodic variation of undetermined origin. In combination with ground-based photometric monitoring from WASP-South and ASAS-SN, we attribute the 19 d signal to the stellar rotation period (Prot = 19-23 d), although we cannot rule out that the variation seen in photometry belongs to the visually close binary companion. We calculate precise stellar parameters for both TOI-1201 and its companion. The transiting planet is anexcellent target for atmosphere characterization (the transmission spectroscopy metric is 97–16+21) with the upcoming James Webb Space Telescope. It is also feasible to measure its spin-orbit alignment via the Rossiter-McLaughlin effect using current state-of-the-art spectrographs with submeter per second radial velocity precision.

Abstract Copyright: © D. Kossakowski et al. 2021

Journal keyword(s): techniques: photometric - techniques: radial velocities - planetary systems - stars: individual: TOI-1201 - stars: individual: TIC 29960110 - stars: low-mass

VizieR on-line data: <Available at CDS (J/A+A/656/A124): tablee1.dat tablee2.dat>

Simbad objects: 32

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