J/A+A/674/A39 Gaia DR3. 95 extrasolar planets (Gaia Coll.+, 2023)
Gaia Data Release 3: A golden sample of astrophysical parameters.
Gaia Collaboration, Creevey O.L., Sarro L.M., Lobel A., Pancino E.,
Andrae R., Smart R.L., et al.
<Astron. Astrophys. 674, A39 (2023)>
=2023A&A...674A..39G 2023A&A...674A..39G (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Exoplanets ; Photometry, CCD ;
Stars, masses ; Stars, diameters
Keywords: catalogues - stars: fundamental parameters - stars: early-type -
stars: low-mass - Galaxy: stellar content -
Galaxy: kinematics and dynamics
Abstract:
Gaia Data Release 3 provides a wealth of new data products for the
astronomical community to exploit, including astrophysical parameters
for a half billion stars. In this work we demonstrate the high quality
of these data products and illustrate their use in different
astrophysical contexts. We have produced six homogeneous samples of
stars with high quality astrophysical parameters across the HR diagram
for the community to exploit. We first focus on three samples that
span a large parameter space: young massive disk stars (OBA), FGKM
spectral-type stars, and ultra-cool dwarfs (UCDs). We provide these
sources along with additional information (either a flag or
complementary parameters) as tables that are made available in the
Gaia archive. We furthermore identify 15740 bone fide carbon stars,
5863 solar-analogues, and provide the first homogeneous set of stellar
parameters of the Spectro Photometric Standard Stars. We demonstrate
some applications of these samples in different astrophysical
contexts. We use a subset of the OBA sample to illustrate its
usefulness to analyse the Milky Way rotation curve. We then use the
properties of the FGKM stars to analyse known exoplanet systems. We
also analyse the ages of some unseen UCD-companions to the FGKM stars.
We additionally predict the colours of the Sun in various passbands
(Gaia, 2MASS, WISE) using the solar-analogue sample.
Description:
Radius, mass, and age of 95 known extra solar planets and their host
stars, derived using the astrophysical parameters from Gaia Data
Release 3 along with existing literature data of photometric transits
and radial velocities from exoplanet.org and references therein. The
stellar mass and age are inferred assuming a solar metallicity prior.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table8.dat 108 95 Planet and stellar properties
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See also:
I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)
Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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2- 20 I19 --- GaiaDR3 Gaia DR3 SourceID (GaiaDR3SourceID)
23- 38 A16 --- Planet Extra solar planet name (Planet)
42- 46 F5.3 Rjup RadPl Radius of planet (PlanetRadius)
49- 53 F5.3 Rjup e_RadPl Error in radius of planet (PlanetRadiusError)
55- 60 F6.3 Mjup MassPl Mass of planet (PlanetMass)
64- 68 F5.3 Mjup e_MassPl Error in mass of planet (PlanetMassError)
71- 75 F5.3 Rsun RadStar Radius of star (StarRadius)
78- 82 F5.3 Rsun e_RadStar Error in radius of star (StarRadiusError)
85- 89 F5.3 Msun MassStar Mass of star (StarMass) (1)
92- 96 F5.3 Msun e_MassStar Error in mass of star (StarMassError)
98-102 F5.2 Ga AgeStar ?=-9.99 Age of star (StarAge) (1)
105-108 F4.2 Ga e_AgeStar ?=0 Error in age of star (StarAgeError)
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Note (1): The stellar mass and age are inferred using the BASTI models
(Hidalgo et al., 2018ApJ...856..125H 2018ApJ...856..125H) and assuming solar metallicity.
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Acknowledgements:
Orlagh L. Creevey, orlagh.creevey(at)oca.eu
(End) Orlagh Creevey [OCA, Nice, France], Patricia Vannier [CDS] 15-Jul-2022