Distances and parallax bias in Gaia DR2 [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 We derive Bayesian distances for all stars in the radial velocity sample of Gaia DR2, and use the statistical method of Schönrich, Binney & Asplund to validate the distances and test the Gaia parallaxes.
Ralph Schönrich +2 more
exaly +2 more sources
Beyond Spectroscopy. I. Metallicities, Distances, and Age Estimates for Over 20 Million Stars from SMSS DR2 and Gaia EDR3 [PDF]
Astrophysical Journal, 2021 Accurate determinations of stellar parameters and distances for large complete samples of stars are keys for conducting detailed studies of the formation and evolution of our Galaxy.
Yang Huang +10 more
semanticscholar +1 more source
Binary stars in the new millennium [PDF]
Progress in Particle and Nuclear Physics, 2023 Binary stars are as common as single stars. Binary stars are of immense importance to astrophysicists because that they allow us to determine the masses of the stars independent of their distances. They are the cornerstone of the understanding of stellar
Xuefei Chen, Zhengwei Liu, Zhan-wen Han
semanticscholar +1 more source
Distance estimates for AGB stars from parallax measurements [PDF]
Astronomy & Astrophysics, 2022 Estimating the distances to asymptotic giant branch (AGB) stars using optical measurements of their parallaxes is not straightforward because of the large uncertainties introduced by their dusty envelopes, their large angular sizes, and their surface ...
M. Andriantsaralaza +3 more
semanticscholar +1 more source
Estimating Distance from Parallaxes. IV. Distances to 1.33 Billion Stars in Gaia Data Release 2 [PDF]
Astronomical Journal, 2018 For the vast majority of stars in the second Gaia data release, reliable distances cannot be obtained by inverting the parallax. A correct inference procedure must instead be used to account for the nonlinearity of the transformation and the asymmetry of
C. Bailer-Jones +4 more
semanticscholar +1 more source
Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18 [PDF]
Astronomy & Astrophysics, 2019 Combining the precise parallaxes and optical photometry delivered by Gaia’s second data release with the photometric catalogues of Pan-STARRS1, 2MASS, and AllWISE, we derived Bayesian stellar parameters, distances, and extinctions for 265 million of the ...
F. Anders +21 more
semanticscholar +1 more source
From the bulge to the outer disc: StarHorse stellar parameters, distances, and extinctions for stars in APOGEE DR16 and other spectroscopic surveys [PDF]
Astronomy & Astrophysics, 2019 We combine high-resolution spectroscopic data from APOGEE-2 survey Data Release 16 (DR16) with broad-band photometric data from several sources as well as parallaxes from Gaia Data Release 2 (DR2).
A. Queiroz +33 more
semanticscholar +1 more source
Unlocking Galactic Wolf–Rayet stars with Gaia DR2 – I. Distances and absolute magnitudes [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We obtain distances to 383 Galactic Wolf–Rayet (WR) stars from Gaia DR2 parallaxes and Bayesian methods, with a prior based on H ii regions and dust extinction. Distances agree with those from Bailer-Jones et al.
G. Rate, P. Crowther
semanticscholar +1 more source
Distances to Galactic OB Stars: Photometry versus Parallax [PDF]
Astrophysical Journal, 2019 For application to surveys of interstellar matter and Galactic structure, we compute new spectrophotometric distances to 139 OB stars frequently used as background targets for UV spectroscopy.
J. Shull, C. Danforth
semanticscholar +1 more source
Spectrophotometric Parallaxes with Linear Models: Accurate Distances for Luminous Red-giant Stars [PDF]
Astronomical Journal, 2018 With contemporary infrared spectroscopic surveys like APO Galactic Evolution Experiment (APOGEE), red-giant stars can be observed to distances and extinctions at which Gaia parallaxes are not highly informative.
D. Hogg, A. Eilers, H. Rix
semanticscholar +1 more source