From the bulge to the outer disc: monospace StarHorse monospace stellar parameters, distances, and extinctions for stars in APOGEE DR16 and other spectroscopic surveys

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dc.contributor.authorQueiroz, A. B. A.
dc.contributor.authorAnders, F.
dc.contributor.authorChiappini, C.
dc.contributor.authorKhalatyan, A.
dc.contributor.authorSantiago, B. X.
dc.contributor.authorSteinmetz, M.
dc.contributor.authorValentini, M.
dc.contributor.authorMiglio, A.
dc.contributor.authorBossini, D.
dc.contributor.authorBarbuy, B.
dc.contributor.authorMinchev, I
dc.contributor.authorMinniti, D.
dc.contributor.authorGarcia Hernandez, D. A.
dc.contributor.authorSchultheis, M.
dc.contributor.authorBeaton, R. L.
dc.contributor.authorBeers, T. C.
dc.contributor.authorBizyaev, D.
dc.contributor.authorBrownstein, J. R.
dc.contributor.authorCunha, K.
dc.contributor.authorFernandez-Trincado, J. G.
dc.contributor.authorFrinchaboy, P. M.
dc.contributor.authorLane, R. R.
dc.contributor.authorMajewski, S. R.
dc.contributor.authorNataf, D.
dc.contributor.authorNitschelm, C.
dc.contributor.authorPan, K.
dc.contributor.authorRoman-Lopes, A.
dc.contributor.authorSobeck, J. S.
dc.contributor.authorStringfellow, G.
dc.contributor.authorZamora, O.
dc.date.accessioned2025-01-23T19:51:35Z
dc.date.available2025-01-23T19:51:35Z
dc.date.issued2020
dc.description.abstractWe 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). Using the Bayesian isochrone-fitting code StarHorse, we derived the distances, extinctions, and astrophysical parameters for around 388 815 APOGEE stars. We achieve typical distance uncertainties of similar to 6% for APOGEE giants, similar to 2% for APOGEE dwarfs, and extinction uncertainties of similar to 0.07 mag, when all photometric information is available, and similar to 0.17 mag if optical photometry is missing. StarHorse uncertainties vary with the input spectroscopic catalogue, available photometry, and parallax uncertainties. To illustrate the impact of our results, we show that thanks to Gaia DR2 and the now larger sky coverage of APOGEE-2 (including APOGEE-South), we obtain an extended map of the Galactic plane. We thereby provide an unprecedented coverage of the disc close to the Galactic mid-plane (|Z(Gal)| < 1 kpc) from the Galactic centre out to R-Gal<similar to>20 kpc. The improvements in statistics as well as distance and extinction uncertainties unveil the presence of the bar in stellar density and the striking chemical duality in the innermost regions of the disc, which now clearly extend to the inner bulge. We complement this paper with distances and extinctions for stars in other public released spectroscopic surveys: 324 999 in GALAH DR2, 4 928 715 in LAMOST DR5, 408 894 in RAVE DR6, and 6095 in GES DR3.
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361/201937364
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://doi.org/10.1051/0004-6361/201937364
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100588
dc.identifier.wosidWOS:000542608000002
dc.language.isoen
dc.revistaAstronomy & astrophysics
dc.rightsacceso restringido
dc.subjectstars: distances
dc.subjectstars: fundamental parameters
dc.subjectstars: statistics
dc.subjectGalaxy: general
dc.subjectGalaxy: disk
dc.subjectGalaxy: stellar content
dc.titleFrom the bulge to the outer disc: monospace StarHorse monospace stellar parameters, distances, and extinctions for stars in APOGEE DR16 and other spectroscopic surveys
dc.typeartículo
dc.volumen638
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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