J/AJ/163/160 Properties of 170 TOI hosts and companions (Behmard+, 2022)
Stellar Companions to TESS Objects of Interest; A Test of Planet-Companion
Alignment.
Behmard A., Dai F., Howard A.W.
<Astron. J., 163, 160 (2022)>
=2022AJ....163..160B 2022AJ....163..160B
ADC_Keywords: Stars, double and multiple; Exoplanets; Stars, masses;
Proper motions; Optical
Keywords: Binary stars ; Exoplanet dynamics ; Astrometry ; Bayesian
statistics ; Hierarchical models
Abstract:
We present a catalog of stellar companions to host stars of Transiting
Exoplanet Survey Satellite Objects of Interest (TOIs) identified from
a marginalized likelihood ratio test that incorporates astrometric
data from the Gaia Early Data Release 3 catalog (EDR3). The likelihood
ratio is computed using a probabilistic model that incorporates
parallax and proper-motion covariances and marginalizes the distances
and 3D velocities of stars in order to identify comoving stellar
pairs. We find 172 comoving companions to 170 non-false-positive TOI
hosts, consisting of 168 systems with two stars and 2 systems with
three stars. Among the 170 TOI hosts, 54 harbor confirmed planets that
span a wide range of system architectures. We conduct an investigation
of the mutual inclinations between the stellar companion and planetary
orbits using Gaia EDR3, which is possible because transiting
exoplanets must orbit within the line of sight; thus, stellar
companion kinematics can constrain mutual inclinations. While the
statistical significance of the current sample is weak, we find that
73-20+14% of systems with Kepler-like architectures
(RP≲4R⊕ and a<1au) appear to favor a nonisotropic orientation
between the planetary and companion orbits with a typical mutual
inclination α of 35°±24°. In contrast, 65-35+20%
of systems with close-in giants (P<10days and RP>4R⊕) favor a
perpendicular geometry (α=89°±21°) between the
planet and companion. Moreover, the close-in giants with large stellar
obliquities (planet-host misalignment) are also those that favor
significant planet-companion misalignment.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 77 170 *Properties of TOI hosts with stellar companions
table2.dat 86 173 Properties of stellar companions to TOI hosts
table3.dat 90 254 Properties of TOIs with stellar companions
--------------------------------------------------------------------------------
Note on table1.dat : All properties are from the Gaia EDR3 catalog.
--------------------------------------------------------------------------------
See also:
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
J/other/Nat/486.375 : Stellar parameters of KOI stars (Buchhave+, 2012)
J/MNRAS/419/2844 : Radial metallicity gradient RAVE DR3 (Coskunoglu+, 2012)
J/A+A/562/A71 : Chemical abundances solar neighbourhood dwarfs (Bensby+, 2014)
J/ApJ/795/64 : A cat. of exoplanet physical parameters (Foreman-Mackey+, 2014)
J/ApJ/801/3 : Rotation periods for Q3-Q14 KOIs (Mazeh+, 2015)
J/ApJ/806/248 : AO imaging of KOIs with gas giant planets (Wang+, 2015)
J/AJ/152/8 : Impact stellar multiplicity on planetary syst. I (Kraus+, 2016)
J/MNRAS/456/2070 : Eccentricity distribution wide binaries (Tokovinin+, 2016)
J/AJ/153/257 : Comoving stars in Gaia DR1 (Oh+, 2017)
J/AJ/155/89 : California-Kepler Survey (CKS). IV. Planets (Petigura+, 2018)
J/ApJ/856/23 : BANYAN. XI. The BANYAN Σ algorithm (Gagne+, 2018)
J/MNRAS/490/5088 : Stellar companions of exoplanet host stars (Mugrauer, 2019)
J/AN/341/996 : Stellar companions of (C)TOIs (Mugrauer+, 2020)
J/AJ/159/19 : SOAR TESS survey. I. (Ziegler+, 2020)
J/AJ/160/138 : 68 Gaia DR2 ultra-short-period planet host stars (Hamer+, 2020)
J/AJ/160/239 : Cluster difference imaging photo. survey. II. (Bouma+, 2020)
J/AN/342/840 : Stellar companions of (C)TOIs (Mugrauer+, 2021)
J/AJ/161/68 : Obliquities of 150 hot Kepler hosting stars (Louden+, 2021)
J/AJ/162/192 : SOAR TESS survey. II. Impact of stellar comp. (Ziegler+, 2021)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- TIC TESS Input Catalog identifier
12- 13 I2 h RAh [0/23] Hour of Right Ascension (J2000)
15- 16 I2 min RAm Minute of Right Ascension (J2000)
18- 22 F5.2 s RAs Second of Right Ascension (J2000)
24 A1 --- DE- [±] Sign of the Declination (J2000)
25- 26 I2 deg DEd Degree of Declination (J2000)
28- 29 I2 arcmin DEm Arcminute of Declination (J2000)
31- 35 F5.2 arcsec DEs Arcsecond of Declination (J2000)
37- 43 F7.2 mas/yr pmRA [-486/293] Proper motion along RA
45- 48 F4.2 mas/yr e_pmRA [0.01/0.2] Uncertainty in pmRA
50- 56 F7.2 mas/yr pmDE [-491/192] Proper motion along DE
58- 61 F4.2 mas/yr e_pmDE [0.01/0.2] Uncertainty in pmDE
63- 67 F5.2 mas plx [1.32/79.5] Parallax
69- 72 F4.2 mas e_plx [0.01/0.2] Uncertainty in plx
74- 77 F4.1 mag Gmag [5.7/16.9] Apparent G band magnitude
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- TIC TESS Input Catalog identifier
12- 18 F7.1 AU Sep [41/23321] Separation
20- 24 F5.2 mas/yr DpmRA [0.01/14.7] Difference proper motion along RA
26- 29 F4.2 mas/yr e_DpmRA [0.01/0.7] Uncertainty in DpmRA
31- 35 F5.2 mas/yr DpmDE [0/11.1] Difference in proper motion along DE
37- 40 F4.2 mas/yr e_DpmDE [0.02/0.9] Uncertainty in DpmDE
42- 45 F4.2 mas Dplx [0/1.37] Difference in parallax
47- 50 F4.2 mas e_Dplx [0.02/0.5] Uncertainty in Dplx
52- 56 F5.1 mag DGmag [-11.5/4.8]? Different in G band magnitude
58- 62 F5.3 Msun Mass [0.1/1.51]? isoclassify derived stellar mass
64- 71 F8.6 Msun e_Mass [0.003/0.2]? Upper uncertainty in M*
73- 80 F8.6 Msun E_Mass [0.002/0.2]? Lower uncertainty in M*
82- 86 F5.2 [-] [L1/L2] [2.13/12.96] Natural log-likelihood ratio
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- TIC TESS Input Catalog identifier
11 A1 --- f_TIC Flag on TIC (1)
13- 19 F7.2 --- TOI TESS Object of Interest identifier
21 I1 --- Num [1/5] Number of companions in the system
23- 24 A2 --- TESS TESS candidate status (2)
26- 28 A3 --- TFOPWG TESS Follow-up Observing Program Working
Group candidate status (2)
30- 50 A21 --- Source TESS processing pipeline source (3)
52- 57 F6.2 d Per [0/184] Orbital period
59- 64 F6.4 d e_Per [0/0.02] Uncertainty in Period
66- 70 F5.2 Rgeo Rad [0.55/49.7]? Planetary radius
72- 76 F5.2 Rgeo e_Rad [0.08/16]? Uncertainty in Rp
78- 84 F7.2 K Teq [293/4428]? Equilibrium temperature
86- 90 F5.2 [-] [L1/L2] [2.13/13] Natural log-likelihood ratio (4)
--------------------------------------------------------------------------------
Note (1): Flags as follows:
* = Confirmed planet host; 64 occurrences
Note (2): Status as follows:
FP = false positive,
APC = ambiguous planetary candidate,
PC = planetary candidate
CP = confirmed planet
KP = known planet
FA = false-alarm
Note (3): Sources as follows:
SPOC = NASA/Ames Science Processing Operations Center,
QLP = the TESS Science Office Quick-Look Pipeline.
Note (4): The TOIs are sorted by their detected companion log-likelihood ratios.
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 26-Apr-2022