DOI: 10.5281/zenodo.15108911
title: Parameter catalog of "Stellar Parameters for over Fifty Million stars from SMSS DR4 and Gaia DR3"

description: Article Abstract

We present an updated catalog of stellar parameters, including effective temperature, luminosity classification, and metallicity, for over fifty million stars from the SkyMapper Southern Survey (SMSS) DR4 and \textit{Gaia} DR3. The accuracy of the derived parameters remains consistent with those achieved in SMSS DR2 using the same methods. Thanks to the advancements in SMSS DR4, photometric-metallicity estimates are now available for an unprecedented number of metal-poor stars. The catalog includes over 13 million metal-poor (MP; [Fe/H] $\leq -1$) stars, nearly three million very metal-poor (VMP; [Fe/H] $\leq -2.0$) stars, and approximately 120,000 extremely metal-poor (EMP; [Fe/H] $\leq -3.0$) stars -- representing an increase by a factor of 4–6 compared to SMSS DR2. This catalog, combined with other stellar parameters obtained through our efforts, will be made available at \url{https://nadc.china-vo.org/data/sports/}.

 

Status of Paper Publication

Paper ‘Stellar Parameters for over Fifty Million stars from SMSS DR4 and Gaia DR3’ is submitted to RNAAS.

 

Catalog Description

GAIAID          LONG64          Source ID of GaiaRA              DOUBLE          Right Ascension from SMSS DR4 (J2000)DEC             DOUBLE          Declination from  SMSS DR4 (J2000)GL              DOUBLE          Galactic longitude derived from ICRS coordinatesGB              DOUBLE          Galactic longitude derived from ICRS coordinates&US              FLOAT           u-band magnitude from SMSS DR4ERR_US          FLOAT           Uncertainty of u-band magnitude from SMSS DR4VS              FLOAT           v-band magnitude from SMSS DR4ERR_VS          FLOAT           Uncertainty of v-band magnitude from SMSS DR4GS              FLOAT           g-band magnitude from SMSS DR4ERR_GS          FLOAT           Uncertainty of g-band magnitude from SMSS DR4RS              FLOAT           r-band magnitude from SMSS DR4ERR_RS          FLOAT           Uncertainty of r-band magnitude from SMSS DR4IS              FLOAT           i-band magnitude from SMSS DR4ERR_IS          FLOAT           Uncertainty of i-band magnitude from SMSS DR4ZS              FLOAT           z-band magnitude from SMSS DR4ERR_ZS          FLOAT           Uncertainty of z-band magnitude from SMSS DR4BP              FLOAT           Bp-band magnitude from Gaia EDR3ERR_BP          FLOAT           Uncertainty of Bp-band magnitude from Gaia EDR3RP              FLOAT           Rp-band magnitude from Gaia EDR3ERR_RP          FLOAT           Uncertainty of Rp-band magnitude from Gaia EDR3GG              FLOAT           G-band magnitude from Gaia EDR3ERR_GG          FLOAT           Uncertainty of G-band magnitude from Gaia EDR3EBV_SFD         FLOAT           Value of $E (B - V)$ from from the extinction map of SFD98, corrected for a 14% systematicRUWE            FLOAT           Renormalised unit weight error from Gaia EDR3PMRA            FLOAT           Proper motion in R.A. direction from Gaia EDR3ERR_PMRA        FLOAT           Uncertainty of proper motion in R.A. direction from Gaia EDR3PMDEC           FLOAT           Proper motion in decl. direction from Gaia EDR3ERR_PMDEC       FLOAT           Uncertainty of proper motion in decl. direction from Gaia EDR3PARALLAX        FLOAT           Parallax from Gaia EDR3ERR_PARALLAX    FLOAT           Uncertainty of parallax from Gaia EDR3DIST            FLOAT           DistanceERR_DIST        FLOAT           Uncertainty of distance                                                       FLG_DIST        STRING          Flag to indicate the method used to derive distance, which takes the values of CMD, CMD_NOBIAS, and Gaia   TEFF            FLOAT           Effective temperatureERR_TEFF        FLOAT           Uncertainty of effective temperatureLOGG            FLOAT           Surface gravityERR_LOGG        FLOAT           Uncertainty of surface gravityFEH             FLOAT           Photometric metallicityERR_FEH         FLOAT           Uncertainty of photometric metallicityFLG_FEH         STRING          Flag to indicate the stellar color(s) used in estimating [Fe/H], which takes the values of ub, vb, and ub+vbAGE             FLOAT           Stellar ageERR_AGE         FLOAT           Uncertainty of stellar ageMASS            FLOAT           Stellar massERR_MASS        FLOAT           Uncertainty of stellar massDIST_BJ         FLOAT           Distance from Bailer-Jones et al. 2021 (AJ, 161, 147)ERR_DIST_BJ     FLOAT           Uncertainty of distance from Bailer-Jones et al. 2021 (AJ, 161, 147)RV              FLOAT           Radial velocityERR_RV          FLOAT           Uncertainty of radial velocityFLG_RV          STRING          Flag to indicate the source of radial velocity, which takes the values of APOGEE-DR17, GALAH-DR3, Gaia-DR3, LAMOST-DR11, RAVE-DR5 and SDSS-DR12CLASS           STRING          Flag to indicate classifications of stars, which takes the values dwarf and giantSUB_CLASS       STRING          Flag to indicate further subclassifications of dwarf stars, which takes the values CMD_BINARY, CMD_MS, and CMD_TO