Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/218453
Title: Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia EDR3 stars brighter than G=18.5
Author: Jiménez Arranz, Óscar
Anders, F.
Khalatyan, A.
Queiroz, A. B. A.
Chiappini, C.
Ardèvol Guillamón, Judith
Casamiquela, L.
Figueras Siñol, Francesca
Jordi i Nebot, Carme
Monguió, M.
Romero Gómez, Mercè
Altamirano, D.
Antoja Castelltort, M. Teresa
Assaad, R.
Cantat-Gaudin, T.
Castro Ginard, Alfred
Enke, H.
Girardi, L.
Guiglion, G.
Khan, S.
Luri Carrascoso, Xavier
Miglio, A.
Minchev, I.
Ramos, P.
Santiago, B. X.
Steinmetz, M.
Keywords: Fotometria
Astrometria
Galàxies
Photometry
Astrometry
Galaxies
Issue Date: 7-Feb-2022
Publisher: EDP Sciences
Abstract: We present a catalogue of 362 million stellar parameters, distances, and extinctions derived from Gaia's early third data release (EDR3) cross-matched with the photometric catalogues of Pan-STARRS1, SkyMapper, 2MASS, and AllWISE. The higher precision of the Gaia EDR3 data, combined with the broad wavelength coverage of the additional photometric surveys and the new stellar-density priors of the {\tt StarHorse} code allow us to substantially improve the accuracy and precision over previous photo-astrometric stellar-parameter estimates. At magnitude G=14(17), our typical precisions amount to 3% (15%) in distance, 0.13 mag (0.15 mag) in V-band extinction, and 140 K (180 K) in effective temperature. Our results are validated by comparisons with open clusters, as well as with asteroseismic and spectroscopic measurements, indicating systematic errors smaller than the nominal uncertainties for the vast majority of objects. We also provide distance- and extinction-corrected colour-magnitude diagrams, extinction maps, and extensive stellar density maps that reveal detailed substructures in the Milky Way and beyond. The new density maps now probe a much greater volume, extending to regions beyond the Galactic bar and to Local Group galaxies, with a larger total number density. We publish our results through an ADQL query interface ({\tt gaia.aip.de}) as well as via tables containing approximations of the full posterior distributions. Our multi-wavelength approach and the deep magnitude limit make our results useful also beyond the next Gaia release, DR3.
Note: Reproducció del document publicat a: https://doi.org/10.1051/0004-6361/202142369
It is part of: Astronomy & Astrophysics, 2022, vol. 658, num.A91, p. 1-27
URI: https://hdl.handle.net/2445/218453
Related resource: https://doi.org/10.1051/0004-6361/202142369
ISSN: 0004-6361
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

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