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

A. B.A. Queiroz; F. Anders; C. Chiappini; A. Khalatyan; B. X. Santiago; M. Steinmetz; M. Valentini; A. Miglio; D. Bossini; B. Barbuy; I. Minchev; D. Minniti; D. A. García Hernández; M. Schultheis; R. L. Beaton; T. C. Beers; D. Bizyaev; J. R. Brownstein; K. Cunha; J. G. Fernández-Trincado; P. M. Frinchaboy; R. R. Lane; S. R. Majewski; D. Nataf; C. Nitschelm; K. Pan; A. Roman-Lopes; J. S. Sobeck; G. Stringfellow; O. Zamora

doi:10.1051/0004-6361/201937364

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

A. B.A. Queiroz, F. Anders, C. Chiappini, A. Khalatyan, B. X. Santiago, M. Steinmetz, M. Valentini, A. Miglio, D. Bossini, B. Barbuy, I. Minchev, D. Minniti, D. A. García Hernández, M. Schultheis, R. L. Beaton, T. C. Beers, D. Bizyaev, J. R. Brownstein, K. Cunha, J. G. Fernández-TrincadoP. M. Frinchaboy, R. R. Lane, S. R. Majewski, D. Nataf, C. Nitschelm, K. Pan, A. Roman-Lopes, J. S. Sobeck, G. Stringfellow, O. Zamora

Steward Observatory

Research output: Contribution to journal › Review article › peer-review

129 Scopus citations

Abstract

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). 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 ∼6% for APOGEE giants, ∼2% for APOGEE dwarfs, and extinction uncertainties of ∼0.07 mag, when all photometric information is available, and ∼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 (|ZGal| < 1 kpc) from the Galactic centre out to RGal ∼ 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.

Original language	English (US)
Article number	A76
Journal	Astronomy and astrophysics
Volume	638
DOIs	https://doi.org/10.1051/0004-6361/201937364
State	Published - Jun 1 2020

Keywords

Galaxy: disk
Galaxy: general
Galaxy: stellar content
Stars: distances
Stars: fundamental parameters
Stars: statistics

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1051/0004-6361/201937364

Cite this

Queiroz, A. B. A., Anders, F., Chiappini, C., Khalatyan, A., Santiago, B. X., Steinmetz, M., Valentini, M., Miglio, A., Bossini, D., Barbuy, B., Minchev, I., Minniti, D., García Hernández, D. A., Schultheis, M., Beaton, R. L., Beers, T. C., Bizyaev, D., Brownstein, J. R., Cunha, K., ... Zamora, O. (2020). From the bulge to the outer disc: StarHorse stellar parameters, distances, and extinctions for stars in APOGEE DR16 and other spectroscopic surveys. Astronomy and astrophysics, 638, Article A76. https://doi.org/10.1051/0004-6361/201937364

Queiroz, ABA, Anders, F, Chiappini, C, Khalatyan, A, Santiago, BX, Steinmetz, M, Valentini, M, Miglio, A, Bossini, D, Barbuy, B, Minchev, I, Minniti, D, García Hernández, DA, Schultheis, M, Beaton, RL, Beers, TC, Bizyaev, D, Brownstein, JR, Cunha, K, Fernández-Trincado, JG, Frinchaboy, PM, Lane, RR, Majewski, SR, Nataf, D, Nitschelm, C, Pan, K, Roman-Lopes, A, Sobeck, JS, Stringfellow, G & Zamora, O 2020, 'From the bulge to the outer disc: StarHorse stellar parameters, distances, and extinctions for stars in APOGEE DR16 and other spectroscopic surveys', Astronomy and astrophysics, vol. 638, A76. https://doi.org/10.1051/0004-6361/201937364

@article{4b79bae992b84a69ad102cff9de8831e,

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

abstract = "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). 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 ∼6% for APOGEE giants, ∼2% for APOGEE dwarfs, and extinction uncertainties of ∼0.07 mag, when all photometric information is available, and ∼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 (|ZGal| < 1 kpc) from the Galactic centre out to RGal ∼ 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.",

keywords = "Galaxy: disk, Galaxy: general, Galaxy: stellar content, Stars: distances, Stars: fundamental parameters, Stars: statistics",

author = "Queiroz, {A. B.A.} and F. Anders and C. Chiappini and A. Khalatyan and Santiago, {B. X.} and M. Steinmetz and M. Valentini and A. Miglio and D. Bossini and B. Barbuy and I. Minchev and D. Minniti and {Garc{\'i}a Hern{\'a}ndez}, {D. A.} and M. Schultheis and Beaton, {R. L.} and Beers, {T. C.} and D. Bizyaev and Brownstein, {J. R.} and K. Cunha and Fern{\'a}ndez-Trincado, {J. G.} and Frinchaboy, {P. M.} and Lane, {R. R.} and Majewski, {S. R.} and D. Nataf and C. Nitschelm and K. Pan and A. Roman-Lopes and Sobeck, {J. S.} and G. Stringfellow and O. Zamora",

note = "Publisher Copyright: {\textcopyright} 2020 ESO.",

year = "2020",

month = jun,

day = "1",

doi = "10.1051/0004-6361/201937364",

language = "English (US)",

volume = "638",

journal = "Astronomy and astrophysics",

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T1 - From the bulge to the outer disc

T2 - StarHorse stellar parameters, distances, and extinctions for stars in APOGEE DR16 and other spectroscopic surveys

AU - Queiroz, A. B.A.

AU - Anders, F.

AU - Chiappini, C.

AU - Khalatyan, A.

AU - Santiago, B. X.

AU - Steinmetz, M.

AU - Valentini, M.

AU - Miglio, A.

AU - Bossini, D.

AU - Barbuy, B.

AU - Minchev, I.

AU - Minniti, D.

AU - García Hernández, D. A.

AU - Schultheis, M.

AU - Beaton, R. L.

AU - Beers, T. C.

AU - Bizyaev, D.

AU - Brownstein, J. R.

AU - Cunha, K.

AU - Fernández-Trincado, J. G.

AU - Frinchaboy, P. M.

AU - Lane, R. R.

AU - Majewski, S. R.

AU - Nataf, D.

AU - Nitschelm, C.

AU - Pan, K.

AU - Roman-Lopes, A.

AU - Sobeck, J. S.

AU - Stringfellow, G.

AU - Zamora, O.

PY - 2020/6/1

Y1 - 2020/6/1

N2 - 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). 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 ∼6% for APOGEE giants, ∼2% for APOGEE dwarfs, and extinction uncertainties of ∼0.07 mag, when all photometric information is available, and ∼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 (|ZGal| < 1 kpc) from the Galactic centre out to RGal ∼ 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.

AB - 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). 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 ∼6% for APOGEE giants, ∼2% for APOGEE dwarfs, and extinction uncertainties of ∼0.07 mag, when all photometric information is available, and ∼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 (|ZGal| < 1 kpc) from the Galactic centre out to RGal ∼ 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.

KW - Galaxy: disk

KW - Galaxy: general

KW - Galaxy: stellar content

KW - Stars: distances

KW - Stars: fundamental parameters

KW - Stars: statistics

UR - http://www.scopus.com/inward/record.url?scp=85088299402&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85088299402&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201937364

DO - 10.1051/0004-6361/201937364

M3 - Review article

AN - SCOPUS:85088299402

SN - 0004-6361

VL - 638

JO - Astronomy and astrophysics

JF - Astronomy and astrophysics

M1 - A76

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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StarHorse data for 5 surveys

Cite this

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

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Datasets

StarHorse data for 5 surveys

Cite this