J/AJ/167/89 Architectures of S* Transiting Planets in Binaries.I. (Zhang+, 2024)
Dynamical Architectures of S-type Transiting Planets in Binaries.
I. Target Selection Using Hipparcos and Gaia Proper Motion Anomalies.
Zhang J., Weiss L.M., Huber D., Jensen E.L.N., Brandt T.D., Collins K.,
Conti D.M., Isaacson H., Lewin P., Marino G., Massey B., Murgas F.,
Palle E., Radford D.J., Relles H.M., Srdoc G., Stockdale C., Tan T.-G.,
Wang G.
<Astron. J., 167, 89 (2024)>
=2024AJ....167...89Z 2024AJ....167...89Z
ADC_Keywords: Exoplanets; Stars, double and multiple; Spectra, optical;
Radial velocities
Keywords: Exoplanet catalogs ; Exoplanet dynamics ; Astrometric binary
stars ; Gaia ; Radial velocity
Abstract:
The effect of stellar multiplicity on planetary architecture and
orbital dynamics provides an important context for exoplanet
demographics. We present a volume-limited catalog of up to 300pc of 66
stars hosting planets and planet candidates from Kepler, K2, and TESS
with significant Hipparcos-Gaia proper motion anomalies, which
indicates the presence of companions. We assess the reliability of
each transiting planet candidate using ground-based follow- up
observations, and find that the TESS Objects of Interest (TOIs) with
significant proper anomalies show nearly four times more false
positives due to eclipsing binaries compared to TOIs with marginal
proper anomalies. In addition, we find tentative evidence that orbital
periods of planets orbiting TOIs with significant proper anomalies are
shorter than those orbiting TOIs without significant proper anomalies,
consistent with the scenario that stellar companions can truncate
planet-forming disks. Furthermore, TOIs with significant proper
anomalies exhibit lower Gaia differential velocities in comparison to
field stars with significant proper anomalies, suggesting that planets
are more likely to form in binary systems with low-mass substellar
companions or stellar companions at wider separation. Finally, we
characterize the three-dimensional architecture of LTT-1445-ABC using
radial velocities, absolute astrometry from Gaia and Hipparcos, and
relative astrometry from imaging. Our analysis reveals that LTT-1445
is a nearly flat system, with a mutual inclination of ∼2.88deg between
the orbit of BC around A and that of C around B. This coplanarity may
explain why multiple planets around LTT-1445-A survive in the
dynamically hostile environments of this system.
Dexcription:
We use nine archival RVs of LTT 1445 A taken with HARPS between 2004
and 2013 and 136 published RVs from
2019-2021 taken with five high-precision spectrographs including the
W. M. Keck Observatory echelle spectrograph HIRES, ESPRESSO, HARPS,
MAROON-X, and Planet Finder Spectrograph (PFS).
Objects:
----------------------------------------------------
RA (2000) DE Designation(s)
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03 01 51.39 -16 35 36.0 LTT 1445 A = ** RST 2292A
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File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 50 150 LTT 1445A radial velocities
table5.dat 46 254 TOIs with low-SNR proper motion anomalies
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See also:
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2020)
IV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)
J/A+A/479/271 : HD 196885 radial velocities (Correia+, 2008)
J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010)
J/AJ/142/160 : Kepler Mission. II. Eclipsing bin in DR2 (Slawson+, 2011)
J/AJ/144/64 : Solar neighborhood XXVIII Substellar comp (Dieterich+, 2012)
J/ApJS/204/24 : Kepler planetary candidates. III. (Batalha+, 2013)
J/ApJS/210/19 : Kepler planetary candidates. IV. 22 months (Burke+, 2014)
J/A+A/579/A19 : K2 Variable Catalogue (Armstrong+, 2015)
J/ApJS/217/31 : Kepler planetary candidates VI. 4yr Q1-Q16 (Mullally+, 2015)
J/MNRAS/449/3160 : Stellar multiplicity and debris discs (Rodriguez+, 2015)
J/ApJS/217/16 : Kepler planetary candidates. V. 3yr Q1-Q12 (Rowe+, 2015)
J/ApJ/813/130 : Kepler multiple transiting planet systems (Wang+, 2015)
J/A+A/594/A100 : K2 new planetary and EB candidates (Barros+, 2016)
J/ApJS/224/12 : Kepler planetary candidates. VII. 48-month (Coughlin+, 2016)
J/ApJS/224/2 : K2 EPIC stellar properties for 138600 targets (Huber+, 2016)
J/AJ/152/8 : Impact of star multip on planetary systems I. (Kraus+, 2016)
J/AJ/153/71 : Kepler follow-up observation program. I (Furlan+, 2017)
J/AJ/154/224 : Transiting planets in young cluster from K2 (Rizzuto+, 2017)
J/A+A/619/L10 : pi Men radial velocity curves (Gandolfi+, 2018)
J/AJ/156/292 : Effect of close companions exoplanetary radii (Teske+, 2018)
J/ApJS/235/38 : Kepler planet cand. VIII DR25 reliability (Thompson+, 2018)
J/ApJ/872/158 : Survey of Class II sources Taurus with ALMA (Akeson+, 2019)
J/A+A/627/A43 : Two super-Earths orbiting TOI-402 (Dumusque+, 2019)
J/ApJ/876/L24 : HARPS RVel of the host star HD15337 (Gandolfi+, 2019)
J/A+A/623/A72 : Bin of Hipparcos stars from Gaia pmanomaly (Kervella+, 2019)
J/AJ/157/124 : DAVE. I. Benchmarking K2 vetting tools (Kostov+, 2019)
J/ApJS/244/11 : Planet candidates and EBs in K2 campaigns 0-8 (Kruse+, 2019)
J/A+A/642/A31 : pi Men radial velocity curves (Damasso+, 2020)
J/A+A/640/A73 : pi Men radial velocity curves (De Rosa+, 2020)
J/A+A/636/A74 : HARPS radial velocity database (Trifonov+, 2020)
J/AJ/159/19 : SOAR TESS survey. I. (Ziegler+, 2020)
J/ApJS/254/42 : Hipparcos-Gaia EDR3 Catalog of Accelerations (Brandt, 2021)
J/ApJS/254/39 : Exoplanet candidates from TESS 1st 2yr obs (Guerrero+, 2021)
J/AJ/161/235 : Radial velocity of TOI-201 (Hobson+, 2021)
J/AJ/161/164 : Observation of 186 TESS stars with NESSI (Howell+, 2021)
J/AJ/162/89 : HIRES radial velocity follow up for Kepler129 (Zhang+, 2021)
J/AJ/163/223 : Radial velocity study of π Mensae (Hatzes+, 2022)
J/AJ/163/168 : Photometry and radial velocity of LTT 1445A (Winters+, 2022)
J/A+A/673/A69 : LTT 1445A ESPRESSO observations (Lavie+, 2023)
http://exoplanetarchive.ipac.caltech.edu/ : NASA Exoplanet Archive
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 7 F7.2 d BJD [2988/9948] Time of observation, BJD-2450000
9- 16 F8.2 m/s RVel [-5464/26] Radial velocity
18- 21 F4.2 m/s e_RVel [0.1/3] Uncertainty in RVel (1)
23- 36 A14 -- Inst Instrument used to get RVel
38- 50 A13 -- r_RVel Reference for RVel (2)
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Note (1): The RVel uncertainties do not include RVel jitter
Note (2): Refrences as follows:
Trifonov+2020 = Trifonov+, 2020, J/A+A/636/A74
Winters+2022 = Winters+, 2022BAAS...54e.417W 2022BAAS...54e.417W
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 8 A8 -- TOI TOI identifier
10- 15 I6 -- HIP Hipparcos Number
17- 22 A6 d Per Orbital period of planet
24- 26 A3 -- Disp NASA Exoplanet Archive Disposition (1)
28- 33 F6.2 m/s dVel [0.46/324] Differential velocities at Gaia epoch
35- 38 F4.2 -- SNR [0.14/2.94] Signal-to-noise of proper motion
anomalies at Gaia epoch
40- 46 F7.3 pc Dist [8.08/291] Gaia DR3 distance
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Note (1): Flags come from NASA Exoplanet Archive. Dispositions as follows:
CP = Confirmed Planet (67 occurrences)
PC = Planet Candidate (134 occurrences)
APC = Ambiguous Planet Candidate (6 occurrences)
FP = False Positive (20 occurrences)
FA = False Alarm (6 occurrences)
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 13-May-2024