J/A+A/673/A155 StarHorse data for 8 spectroscopic surveys (Queiroz+, 2023)
StarHorse results for spectroscopic surveys and Gaia DR3:
Chrono-chemical populations in the solar vicinity, the genuine thick disk,
and young-alpha rich stars.
Queiroz A.B.A., Anders F., Chiappini C., Khalatyan A., Santiago B.X.,
Nepal S., Steinmetz M., Gallart C., Valentini M., Dal Ponte M., Barbuy B.,
Perez-Villegas A., Masseron T., Fernandez-Trincado Jose G., Khoperskov S.,
Minchev I., Fernandez-Alvar E., Lane Richard R., Nitschelm C.
<Astron. Astrophys. 673, A155 (2023)>
=2023A&A...673A.155Q 2023A&A...673A.155Q (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Stars, distances ; Effective temperatures ;
Stars, masses ; Abundances, [Fe/H] ; Stars, ages
Keywords: stars: abundances - Galaxy: disk - solar neighborhood -
Galaxy: general - methods: statistical - Galaxy: stellar content
Abstract:
The Gaia mission has provided an invaluable wealth of astrometric data
for more than a billion stars in our Galaxy. The synergy between Gaia
astrometry, photometry, and spectroscopic surveys give us
comprehensive information about the Milky Way. Using the Bayesian
isochrone-fitting code StarHorse, we derive distances and extinctions
for more than 10 million unique stars observed by both Gaia Data
Release 3 as well as public spectroscopic surveys: 557559 in GALAH+
DR3, 4531028 in LAMOST DR7 LRS, 347535 in LAMOST DR7 MRS, 562424 in
APOGEE DR17, 471490 in RAVE DR6, 249991 in SDSS DR12 (optical spectra
from BOSS and SEGUE), 67562 in the Gaia-ESO DR5 survey, and 4211087 in
the Gaia RVS part of Gaia DR3 release. StarHorse can extend the
precision of distances and extinctions measurements where Gaia
parallaxes alone would be uncertain. We use StarHorse for the first
time to derive stellar age for main-sequence turnoff and subgiant
branch stars (MSTO-SGB), around 2.5 million stars with age
uncertainties typically around 30%, 15% for only SGB stars, depending
on the resolution of the survey. With the derived ages in hand, we
investigate the chemical-age relations. In particular, the α and
neutron-capture element ratios versus age in the solar neighbourhood
show trends similar to previous works, validating our ages. We use the
chemical abundances from local subgiant samples of GALAH DR3, APOGEE
DR17 and LAMOST MRS DR7 to map groups with similar chemical
compositions and StarHorse ages with the dimensionality reduction
technique t-SNE and the clustering algorithm HDBSCAN. We identify
three distinct groups in all three samples. Their kinematic properties
confirm them to be the genuine chemical thick disk, the thin disk and
a considerable number of young alpha-rich stars (427), which are also
a part of the delivered catalogues. We confirm that the genuine thick
disk's kinematics and age properties are radically different from
those of the thin disk and compatible with high-redshift (z∼2)
star-forming disks with high dispersion velocities. We also find a few
extra chemical populations in the GALAH DR3, thanks to the
availability of neutron-capture elements.
Description:
We deliver eight catalogues with complementary data to the
spectroscopic surveys (APOGEE DR17, GALAH DR3, GES DR5, LAMOST LRS
DR7. LAMOST MRS DR7, RAVE DR6, Gaia RVS, SDSS D12). The data contains
distances, extinctions, temperatures, metallicities, masses and ages
derived by StarHorse Bayesian code. The files also contain the stars
Galactic position and the ID of the corresponding spectroscopic survey
and Gaia DR3 ID used in the calculations as well as flags indicating
the quality of the derived quantities. The calculation, the code and
the main results of these catalogues are explained detailed in the
paper entitled above.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
apogee17.dat 568 562424 APOGEE DR17 StarHorse (corrected version)
gaiarvs.dat 489 4211087 Gaia RVS DR3 StarHorse (corrected version)
galahdr3.dat 512 557559 GALAH DR3 StarHorse (corrected version)
gesdr5.dat 512 67562 GES DR5 StarHorse (corrected version)
lamostl7.dat 512 4531028 LAMOSTLRS DR7 StarHorse (corrected version)
lamostm7.dat 512 425281 LAMOSTMRS DR7 StarHorse (corrected version)
ravedr6.dat 512 471490 RAVE DR6 StarHorse (corrected version)
sdssdr12.dat 512 250002 SDSS DR12 StarHorse (corrected version)
--------------------------------------------------------------------------------
See also:
I/350 : Gaia EDR3 (Gaia Collaboration, 2020)
I/354 : StarHorse, Gaia EDR3 photo-astrometric distances
(Anders+, 2022)
III/279 : RAVE 5th data release (Kunder+, 2017)
V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
V/164 : LAMOST DR5 catalogs (Luo+, 2019)
J/MNRAS/478/4513 : GALAH Survey DR2 (Buder+, 2018)
Byte-by-byte Description of file: apogee17.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 21 A21 --- APOGEE APOGEE spectroscopic survey object identifier
23- 78 A56 --- ASPCAP ASPCAP object identifier
80- 98 I19 --- GaiaEDR3 Gaia EDR3 unique source ID
100-109 F10.6 deg GLON Galactic longitude
111-120 F10.6 deg GLAT Galactic latitude
122-130 F9.6 Msun Mass16 16th percentile of StarHorse stellar mass
probability distribution function
132-140 F9.6 Msun Mass50 50th percentile of StarHorse stellar mass
probability distribution function
142-150 F9.6 Msun Mass84 84th percentile of StarHorse stellar mass
probability distribution function
152-161 F10.4 K Teff16 16th percentile of StarHorse effective
temperature probability distribution
function
163-172 F10.4 K Teff50 50th percentile of StarHorse effective
temperature probability distribution
function
174-183 F10.4 K Teff84 84th percentile of StarHorse effective
temperature probability distribution
function
185-193 F9.6 [cm/s2] logg16 16th percentile of StarHorse surface gravity
probability distribution function
195-203 F9.6 [cm/s2] logg50 50th percentile of StarHorse surface gravity
probability distribution function
205-213 F9.6 [cm/s2] logg84 84th percentile of StarHorse surface gravity
probability distribution function
215-223 F9.6 [-] Met16 16th percentile of StarHorse metallicity
probability distribution function
225-233 F9.6 [-] Met50 50th percentile of StarHorse metallicity
probability distribution function
235-243 F9.6 [-] Met84 84th percentile of StarHorse metallicity
probability distribution function
245-256 F12.6 kpc Dist05 05th percentile of StarHorse distance
probability distribution function
258-269 F12.6 kpc Dist16 16th percentile of StarHorse distance
probability distribution function
271-282 F12.6 kpc Dist50 50th percentile of StarHorse distance
probability distribution function
284-295 F12.6 kpc Dist84 84th percentile of StarHorse distance
probability distribution function
297-308 F12.6 kpc Dist95 95th percentile of StarHorse distance
probability distribution function
310-319 F10.6 mag AV05 05th percentile of StarHorse extinction in
the V band probability distribution function
321-330 F10.6 mag AV16 16th percentile of StarHorse extinction in
the V band probability distribution function
332-341 F10.6 mag AV50 50th percentile of StarHorse extinction in
the V band probability distribution function
343-352 F10.6 mag AV84 84th percentile of StarHorse extinction in
the V band probability distribution function
354-363 F10.6 mag AV95 95th percentile of StarHorse extinction in
the V band probability distribution function
365-375 F11.6 Gyr Age05 ?=-999 05th percentile of StarHorse age
probability distribution function
377-387 F11.6 Gyr Age16 ?=-999 16th percentile of StarHorse age
probability distribution function
389-399 F11.6 Gyr Age50 ?=-999 50th percentile of StarHorse age
probability distribution function
401-411 F11.6 Gyr Age84 ?=-999 84th percentile of StarHorse age
probability distribution function
413-423 F11.6 Gyr Age95 ?=-999 95th percentile of StarHorse age
probability distribution function
425-499 A75 -- InputFlag StarHorse_INPUTFLAGS StarHorse flags
specifying input (G2)
501-546 A46 -- OutputFlag StarHorse_OUTPUTFLAGS StarHorse flags
specifying output (G3)
548-552 A5 -- AgeFlag StarHorse_AGEFLAG StarHorse flags specifying
output (G4)
554-568 A15 -- AgeInOut StarHorse_OUTPUTFLAGS StarHorse flags
specifying output (G5)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: gaiarvs.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 I19 --- GaiaEDR3 Gaia EDR3 unique source ID
21- 30 F10.6 deg GLON Galactic longitude
32- 41 F10.6 deg GLAT Galactic latitude
43- 51 F9.6 Msun Mass16 16th percentile of StarHorse stellar mass
probability distribution function
53- 61 F9.6 Msun Mass50 50th percentile of StarHorse stellar mass
probability distribution function
63- 71 F9.6 Msun Mass84 84th percentile of StarHorse stellar mass
probability distribution function
73- 82 F10.4 K Teff16 16th percentile of StarHorse effective
temperature probability distribution
function
84- 93 F10.4 K Teff50 50th percentile of StarHorse effective
temperature probability distribution
function
95-104 F10.4 K Teff84 84th percentile of StarHorse effective
temperature probability distribution
function
106-114 F9.6 [cm/s2] logg16 16th percentile of StarHorse surface gravity
probability distribution function
116-124 F9.6 [cm/s2] logg50 50th percentile of StarHorse surface gravity
probability distribution function
126-134 F9.6 [cm/s2] logg84 84th percentile of StarHorse surface gravity
probability distribution function
136-144 F9.6 [-] Met16 16th percentile of StarHorse metallicity
probability distribution function
146-154 F9.6 [-] Met50 50th percentile of StarHorse metallicity
probability distribution function
156-164 F9.6 [-] Met84 84th percentile of StarHorse metallicity
probability distribution function
166-177 F12.6 kpc Dist05 05th percentile of StarHorse distance
probability distribution function
179-190 F12.6 kpc Dist16 16th percentile of StarHorse distance
probability distribution function
192-203 F12.6 kpc Dist50 50th percentile of StarHorse distance
probability distribution function
205-216 F12.6 kpc Dist84 84th percentile of StarHorse distance
probability distribution function
218-229 F12.6 kpc Dist95 95th percentile of StarHorse distance
probability distribution function
231-240 F10.6 mag AV05 05th percentile of StarHorse extinction in
the V band probability distribution function
242-251 F10.6 mag AV16 16th percentile of StarHorse extinction in
the V band probability distribution function
253-262 F10.6 mag AV50 50th percentile of StarHorse extinction in
the V band probability distribution function
264-273 F10.6 mag AV84 84th percentile of StarHorse extinction in
the V band probability distribution function
275-284 F10.6 mag AV95 95th percentile of StarHorse extinction in
the V band probability distribution function
286-296 F11.6 Gyr Age05 ?=-999 05th percentile of StarHorse age
probability distribution function
298-308 F11.6 Gyr Age16 ?=-999 16th percentile of StarHorse age
probability distribution function
310-320 F11.6 Gyr Age50 ?=-999 50th percentile of StarHorse age
probability distribution function
322-332 F11.6 Gyr Age84 ?=-999 84th percentile of StarHorse age
probability distribution function
334-344 F11.6 Gyr Age95 ?=-999 95th percentile of StarHorse age
probability distribution function
346-420 A75 -- InputFlag StarHorse_INPUTFLAGS StarHorse flags
specifying input (G2)
422-467 A46 -- OutputFlag StarHorse_OUTPUTFLAGS StarHorse flags
specifying output (G3)
469-473 A5 -- AgeFlag StarHorse_AGEFLAG StarHorse flags specifying
output (G4)
475-489 A15 -- AgeInOut StarHorse_OUTPUTFLAGS StarHorse flags
specifying output (G5)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: gal*.dat ges*.dat lam*.dat rav*.dat sdss*.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 21 A21 --- Survey Spectroscopic survey object identifier (G1)
24- 42 I19 --- GaiaEDR3 ? Gaia EDR3 unique source ID
44- 53 F10.6 deg GLON Galactic longitude
55- 64 F10.6 deg GLAT Galactic latitude
66- 74 F9.6 Msun Mass16 16th percentile of StarHorse stellar mass
probability distribution function
76- 84 F9.6 Msun Mass50 50th percentile of StarHorse stellar mass
probability distribution function
86- 94 F9.6 Msun Mass84 84th percentile of StarHorse stellar mass
probability distribution function
96-105 F10.4 K Teff16 16th percentile of StarHorse effective
temperature probability distribution
function
107-116 F10.4 K Teff50 50th percentile of StarHorse effective
temperature probability distribution
function
118-127 F10.4 K Teff84 84th percentile of StarHorse effective
temperature probability distribution
function
129-137 F9.6 [cm/s2] logg16 16th percentile of StarHorse surface gravity
probability distribution function
139-147 F9.6 [cm/s2] logg50 50th percentile of StarHorse surface gravity
probability distribution function
149-157 F9.6 [cm/s2] logg84 84th percentile of StarHorse surface gravity
probability distribution function
159-167 F9.6 [-] Met16 16th percentile of StarHorse metallicity
probability distribution function
169-177 F9.6 [-] Met50 50th percentile of StarHorse metallicity
probability distribution function
179-187 F9.6 [-] Met84 84th percentile of StarHorse metallicity
probability distribution function
189-200 F12.6 kpc Dist05 05th percentile of StarHorse distance
probability distribution function
202-213 F12.6 kpc Dist16 16th percentile of StarHorse distance
probability distribution function
215-226 F12.6 kpc Dist50 50th percentile of StarHorse distance
probability distribution function
228-239 F12.6 kpc Dist84 84th percentile of StarHorse distance
probability distribution function
241-252 F12.6 kpc Dist95 95th percentile of StarHorse distance
probability distribution function
254-263 F10.6 mag AV05 05th percentile of StarHorse extinction in
the V band probability distribution function
265-274 F10.6 mag AV16 16th percentile of StarHorse extinction in
the V band probability distribution function
276-285 F10.6 mag AV50 50th percentile of StarHorse extinction in
the V band probability distribution function
287-296 F10.6 mag AV84 84th percentile of StarHorse extinction in
the V band probability distribution function
298-307 F10.6 mag AV95 95th percentile of StarHorse extinction in
the V band probability distribution function
309-319 F11.6 Gyr Age05 ?=-999 05th percentile of StarHorse age
probability distribution function
321-331 F11.6 Gyr Age16 ?=-999 16th percentile of StarHorse age
probability distribution function
333-343 F11.6 Gyr Age50 ?=-999 50th percentile of StarHorse age
probability distribution function
345-355 F11.6 Gyr Age84 ?=-999 84th percentile of StarHorse age
probability distribution function
357-367 F11.6 Gyr Age95 ?=-999 95th percentile of StarHorse age
probability distribution function
369-443 A75 -- InputFlag StarHorse_INPUTFLAGS StarHorse flags
specifying input (G2)
445-490 A46 -- OutputFlag StarHorse_OUTPUTFLAGS StarHorse flags
specifying output (G3)
492-496 A5 -- AgeFlag StarHorse_AGEFLAG StarHorse flags specifying
output (G4)
498-512 A15 -- AgeInOut StarHorse_OUTPUTFLAGS StarHorse flags
specifying output (G5)
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Global notes:
Note (G1): Unique object identifier as:
HHMMSSss+DDMMSSs for galahdr3.dat, StarId in GALAH DR2 catalog,
Cat. J/MNRAS/478/4513
HHMMSSss+DDMMSSs for gesdr5.dat
YYYYMMDD-AANNNNNNA for lamostl7.dat and lamostm7.dat, where YYYYMMDD is the
Obs.Date and AANNNNNNA is the begining of PlanId in LAMOST DR5 catalog,
Cat. Cat. V/164
Name for ravedr6.dat, as in RAVE DR5 catalog, Cat. III/279
Note (G2): specifying input flags:
TEFF.. = calibrated spectroscopic parameters (e.g. TEFF) were used
uncalTEFF.. = uncalibrated spectroscopic parameters (e.g. TEFF) + inflated
uncertainties were used
PARALLAX = Gaia DR2 parallaxes + recalibrated zeropoint and uncertainties
were used
2mass = 2MASS photometry was used
wise = WISE photometry was used
panstarrs.. = PanSTARRS-1 photometry was used
AV_prior = extinction prior (e.g. from APOGEE targeting) was used
Note (G3): specifying output flags:
NEGATIVE_EXTINCTION = bad extinction estimates
NUMMODELS_HIGH = high number of stellar models compatible with
observations within 3Rσ
NUMMODELS_LOW = low number of stellar models compatible with observations
within 3σ
Note (G4): specifying ageflag:
NOAGE = stars outside the main sequence turn-off range, no ages are derived
MSTO = Stars at the main sequence turn-off regime
SGB = stars at the subgiant branch regime, those have the best age estimates
Note (G5): specitying ageinout:
Warndiffinout = Warning for using the age results for which initial
temperatures, metallicites or surface gravities deviate from input data by
more than 300K, 0.3dex and 0.3dex respectively.
--------------------------------------------------------------------------------
Acknowledgements:
Anna Queiroz, aqueiroz(at)aip.de
History:
24-May-2023: online version
19-Jul-2023: corrected version, erratum in A&A, 676, C6 (2023)
(End) Patricia Vannier [CDS] 12-Apr-2023