J/AJ/161/65 THYME. IV. 3 Exoplanets around TOI-451 B (Newton+, 2021)
TESS hunt for young and maturing exoplanets (THYME).
IV. Three small planets orbiting a 120Myr old Star in the Pisces-Eridanus
stream.
Newton E.R., Mann A.W., Kraus A.L., Livingston J.H., Vanderburg A.,
Curtis J.L., Thao Pa C., Hawkins K., Wood M.L., Rizzuto A.C., Soubkiou A.,
Tofflemire B.M., Zhou G., Crossfield I.J.M., Pearce L.A., Collins K.A.,
Conti D.M., Tan T.-G., Villeneuva S., Spencer A., Dragomir D., Quinn S.N.,
Jensen E.L.N., Collins K.I., Stockdale C., Cloutier R., Hellier C.,
Benkhaldoun Z., Ziegler C., Briceno C., Law N., Benneke B.,
Christiansen J.L., Gorjian V., Kane S.R., Kreidberg L., Morales F.Y.,
Werner M.W., Twicken J.D., Levine A.M., Ciardi D.R., Guerrero N.M.,
Hesse K., Quintana E.V., Shiao B., Smith J.C., Torres G., Ricker G.R.,
Vanderspek R., Seager S., Winn J.N., Jenkins J.M., Latham D.W.
<Astron. J., 161, 65 (2021)>
=2021AJ....161...65N 2021AJ....161...65N
ADC_Keywords: Exoplanets; Stars, dwarfs; Stars, M-type; Optical; Photometry;
Stars, double and multiple
Keywords: Exoplanet astronomy ; Exoplanet evolution ; Exoplanet systems ;
Young star clusters ; Stellar activity
Abstract:
Young exoplanets can offer insight into the evolution of planetary
atmospheres, compositions, and architectures. We present the discovery
of the young planetary system TOI-451 (TIC257605131,
GaiaDR24844691297067063424). TOI-451 is a member of the 120Myr old
Pisces-Eridanus stream (Psc-Eri). We confirm membership in the stream
with its kinematics, its lithium abundance, and the rotation and UV
excesses of both TOI451 and its wide-binary companion, TOI-451B
(itself likely an M-dwarf binary). We identified three candidate
planets transiting in the Transiting Exoplanet Survey Satellite data
and followed up the signals with photometry from Spitzer and
ground-based telescopes. The system comprises three validated planets
at periods of 1.9, 9.2, and 16days, with radii of 1.9, 3.1, and 4.1 R,
respectively. The host star is near-solar mass with V=11.0 and H=9.3
and displays an infrared excess indicative of a debris disk. The
planets offer excellent prospects for transmission spectroscopy with
the Hubble Space Telescope and the James Webb Space Telescope,
providing the opportunity to study planetary atmospheres that may
still be in the process of evolving.
Description:
Transiting Exoplanet Survey Stallite (TESS) observed TIC257605131 in
Sectors 4 and 5, from 2018 October 19 to 2018 December 11.
Objects:
-------------------------------------------------------------------
RA (2000) DE Designation(s)
-------------------------------------------------------------------
04 11 49.18 -37 56 42.2 TOI 451 B = Gaia DR2 4844691297067064576
-------------------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
fig8.dat 20 2107 TESS light curve of TOI 451 B
--------------------------------------------------------------------------------
See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
I/337 : Gaia DR1 (Gaia Collaboration, 2016)
II/335 : Revised catalog of GALEX UV sources (GUVcat_AIS GR6+7)(Bianchi+ 2017)
I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
II/358 : SkyMapper Southern Sky Survey. DR1.1 (Wolf+, 2018)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
J/A+A/312/439 : New T Tauri stars in Taurus-Auriga (Wichmann+, 1996)
J/A+A/397/147 : Activity-rotation relationship in stars (Pizzolato+ 2003)
J/A+A/460/695 : Search Associations Containing Young stars (Torres+, 2006)
J/AJ/139/1338 : UV-selected stars in Tau and Upper Sco (Findeisen+, 2010)
J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010)
J/ApJ/727/125 : 2 secondary eclipses of WASP-12b with Spitzer (Campo+, 2011)
J/A+A/529/A75 : Limb-darkening coefficients (Claret+, 2011)
J/ApJ/738/170 : False positive Kepler planet candidates (Morton+, 2011)
J/MNRAS/416/3108 : Membership of Sco OB2 moving group (Rizzuto+, 2011)
J/MNRAS/422/2024 : X-ray-age relation and exoplanet evaporation (Jackson+,2012)
J/ApJ/757/164 : Oxygen abundances of dwarf stars (Ramirez+, 2012)
J/ApJ/754/136 : Light curves of HD 149026b in 3.6-16um (Stevenson+, 2012)
J/ApJS/208/9 : Intrinsic colors & temperatures of PMS stars (Pecaut+, 2013)
J/A+A/571/A47 : Extensive linelist CH stellar atmospheres (Masseron+, 2014)
J/AJ/148/64 : HAZMAT I. FUV & NUV emission early M stars (Shkolnik+, 2014)
J/ApJ/804/64 : Empirical and model parameters of 183 M dwarfs (Mann+, 2015)
J/ApJ/806/183 : Planet radii of Kepler Object of Interest (Wolfgang+, 2015)
J/ApJ/818/153 : MEarth photometry: nearby M-dwarf mag (Dittmann+, 2016)
J/AJ/151/68 : Kepler Mission. VII. Eclipsing binaries in DR3 (Kirk+, 2016)
J/AJ/152/113 : Pleiades members K2 light curves. I. Periods (Rebull+, 2016)
J/AJ/154/109 : California-Kepler Survey. III. Planet radii (Fulton+, 2017)
J/AJ/154/224 : Transiting planets in young clusters from K2 (Rizzuto+,2017)
J/MNRAS/474/2094 : Inferring probabilistic stellar rot. periods (Angus+, 2018)
J/A+A/613/A63 : Lithium content for 148 Pleiades stars (Bouvier+, 2018)
J/AJ/156/102 : TESS Input Catalog and Candidate Target List (Stassun+,2018)
J/ApJS/235/38 : Kepler planetary cand VIII. DR25reliability (Thompson+,2018)
J/AJ/156/259 : Robo-AO detected close binaries in Gaia DR2 (Ziegler+, 2018)
J/ApJS/245/13 : CDIPS. I. LCs from TESS sectors 6 and 7 (Bouma+, 2019)
J/AJ/158/77 : Cand. & members of the Pisces-Eridanus stream (Curtis+,2019)
J/AJ/157/231 : MLSDSS-GaiaDR2 sample of M and L dwarfs (Kiman+, 2019)
J/A+A/628/A66 : alpha Persei, Pleiades and Praesepe clusters (Lodieu+, 2019)
J/ApJ/871/63 : How to constrain M dwarf. II. Nearby binaries (Mann+, 2019)
J/A+A/622/L13 : Stellar stream in Gaia DR2 discovery (Meingast+, 2019)
J/MNRAS/490/3806 : Exoplanets & variable stars 47 Tuc field (Nardiello+, 2019)
J/A+A/621/L2 : Hyades tidal tails revealed by Gaia DR2 (Roeser+, 2019)
J/AJ/159/239 : Transmission Spectroscopy Metric of exoplanets (Guo+, 2020)
J/MNRAS/496/2422 : Abundances 42 Pisces-Eridanus stream stars (Hawkins+, 2020)
J/MNRAS/492/1164 : Abundances of Gaia DR2 wide binaries (Hawkins+, 2020)
J/A+A/639/A64 : Extended Meingast 1 source catalogue (Ratzenboeck+, 2020)
J/A+A/638/A9 : Census of the near-by Psc-Eri stellar stream (Roeser+,2020)
J/AJ/159/19 : SOAR TESS survey. I. (Ziegler+, 2020)
Byte-by-byte Description of file: fig8.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 F9.4 d BJD [1410/1464] Barycentric Julian Date; BJD-2457000
11- 20 F10.8 --- Flux [0.98/1.14] Relative flux
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Newton et al. Paper I. 2019ApJ...880L..17N 2019ApJ...880L..17N
Rizzuto et al. Paper II. 2020AJ....160...33R 2020AJ....160...33R
Mann et al. Paper III. 2020AJ....160..179M 2020AJ....160..179M
Newton et al. Paper IV. 2021AJ....161...65N 2021AJ....161...65N This catalog
Tofflemire et al. Paper V. 2021AJ....161..171T 2021AJ....161..171T Cat. J/AJ/161/171
Mann et al. Paper VI. 2022AJ....163..156M 2022AJ....163..156M Cat. J/AJ/163/156
Newton et al. Paper VII. 2022AJ....164..115N 2022AJ....164..115N Cat. J/AJ/164/115
Barber et al. Paper VIII. 2022AJ....164...88B 2022AJ....164...88B Cat. J/AJ/164/88
Wood et al. Paper IX. 2023AJ....165...85W 2023AJ....165...85W Cat. J/AJ/165/85
Thao et al. Paper X. 2024AJ....168...41T 2024AJ....168...41T Cat. J/AJ/168/41
Capistrant et al. Paper XI. 2024AJ....167...54C 2024AJ....167...54C
(End) Prepared by [AAS], Coralie Fix [CDS], 30-Mar-2021