Parameter catalog of "Stellar Parameters for over Fifty Million stars from SMSS DR4 and Gaia DR3"

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论文摘要 我们发布了一份更新后的恒星参数星表，涵盖来自SkyMapper南天巡天（SkyMapper Southern Survey, SMSS）第四批数据发布版（DR4）以及盖亚（Gaia）第三批数据发布版（DR3）的超过5000万颗恒星的恒星参数，包括有效温度、光度分类与金属丰度。本次推导得到的恒星参数精度，与采用相同方法在SMSS DR2中得到的结果保持一致。得益于SMSS DR4的技术改进，如今我们可以为前所未有的大量贫金属星提供测光金属丰度估计值。本星表包含超过1300万颗贫金属星（MP；[Fe/H] ≤ -1）、近300万颗极贫金属星（VMP；[Fe/H] ≤ -2.0）以及约12万颗极端贫金属星（EMP；[Fe/H] ≤ -3.0）——相较于SMSS DR2，样本量增长了4至6倍。本星表连同我们通过相关工作得到的其他恒星参数，将在以下网址公开：https://nadc.china-vo.org/data/sports/ 论文投稿状态 论文《Stellar Parameters for over Fifty Million stars from SMSS DR4 and Gaia DR3》已提交至RNAAS。 星表说明 GAIAID：LONG64类型，盖亚源标识符 RA：DOUBLE类型，来自SMSS DR4的赤经（J2000坐标系） DEC：DOUBLE类型，来自SMSS DR4的赤纬（J2000坐标系） GL：DOUBLE类型，由ICRS坐标推导得到的银经 GB：DOUBLE类型，由ICRS坐标推导得到的银经（注：原文此处存在排版笔误，结合GL应为银经推测GB应为银纬，此处保留原文表述） US：FLOAT类型，SMSS DR4的u波段星等 ERR_US：FLOAT类型，SMSS DR4的u波段星等不确定度 VS：FLOAT类型，SMSS DR4的v波段星等 ERR_VS：FLOAT类型，SMSS DR4的v波段星等不确定度 GS：FLOAT类型，SMSS DR4的g波段星等 ERR_GS：FLOAT类型，SMSS DR4的g波段星等不确定度 RS：FLOAT类型，SMSS DR4的r波段星等 ERR_RS：FLOAT类型，SMSS DR4的r波段星等不确定度 IS：FLOAT类型，SMSS DR4的i波段星等 ERR_IS：FLOAT类型，SMSS DR4的i波段星等不确定度 ZS：FLOAT类型，SMSS DR4的z波段星等 ERR_ZS：FLOAT类型，SMSS DR4的z波段星等不确定度 BP：FLOAT类型，盖亚EDR3的Bp波段星等 ERR_BP：FLOAT类型，盖亚EDR3的Bp波段星等不确定度 RP：FLOAT类型，盖亚EDR3的Rp波段星等 ERR_RP：FLOAT类型，盖亚EDR3的Rp波段星等不确定度 GG：FLOAT类型，盖亚EDR3的G波段星等 ERR_GG：FLOAT类型，盖亚EDR3的G波段星等不确定度 EBV_SFD：FLOAT类型，来自SFD98消光图的E(B-V)色余值，已针对14%的系统误差完成校正 RUWE：FLOAT类型，盖亚EDR3的归一化单位权重误差 PMRA：FLOAT类型，盖亚EDR3的赤经方向自行 ERR_PMRA：FLOAT类型，盖亚EDR3赤经方向自行的不确定度 PMDEC：FLOAT类型，盖亚EDR3的赤纬方向自行 ERR_PMDEC：FLOAT类型，盖亚EDR3赤纬方向自行的不确定度 PARALLAX：FLOAT类型，盖亚EDR3的视差 ERR_PARALLAX：FLOAT类型，盖亚EDR3视差的不确定度 DIST：FLOAT类型，恒星距离 ERR_DIST：FLOAT类型，恒星距离的不确定度 FLG_DIST：STRING类型，距离推导方法标识字段，可取CMD、CMD_NOBIAS及Gaia三类值 TEFF：FLOAT类型，有效温度 ERR_TEFF：FLOAT类型，有效温度的不确定度 LOGG：FLOAT类型，表面重力 ERR_LOGG：FLOAT类型，表面重力的不确定度 FEH：FLOAT类型，测光金属丰度 ERR_FEH：FLOAT类型，测光金属丰度的不确定度 FLG_FEH：STRING类型，[Fe/H]估计所用恒星色指数标识字段，可取ub、vb及ub+vb三类值 AGE：FLOAT类型，恒星年龄 ERR_AGE：FLOAT类型，恒星年龄的不确定度 MASS：FLOAT类型，恒星质量 ERR_MASS：FLOAT类型，恒星质量的不确定度 DIST_BJ：FLOAT类型，来自Bailer-Jones等人2021年研究（AJ, 161, 147）的恒星距离 ERR_DIST_BJ：FLOAT类型，上述Bailer-Jones距离的不确定度 RV：FLOAT类型，径向速度 ERR_RV：FLOAT类型，径向速度的不确定度 FLG_RV：STRING类型，径向速度来源标识字段，可取APOGEE-DR17、GALAH-DR3、Gaia-DR3、LAMOST-DR11、RAVE-DR5及SDSS-DR12等值 CLASS：STRING类型，恒星分类标识字段，可取矮星（dwarf）与巨星（giant）两类值 SUB_CLASS：STRING类型，矮星子类分类标识字段，可取CMD_BINARY、CMD_MS及CMD_TO三类值