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

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Zenodo2025-08-30 更新2026-05-26 收录
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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 本研究针对SkyMapper南天巡天(SkyMapper Southern Survey, SMSS)第四批数据发布(DR4)与盖亚(Gaia)第三批数据发布(DR3)中的超5000万颗恒星,发布了一套更新的恒星参数目录,包含有效温度(effective temperature)、光度分类(luminosity classification)与金属丰度(metallicity)等参数。本次推导得到的参数精度,与采用相同方法基于SMSS DR2得到的参数精度保持一致。得益于SMSS DR4的数据集升级,本次目录可为前所未有的大量贫金属恒星提供测光金属丰度估算结果。本目录包含超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12万颗超贫金属星(EMP;[Fe/H] ≤ -3.0),相较于SMSS DR2,各类贫金属恒星的数量增长了4至6倍。本目录连同本团队推导得到的其他恒星参数,将通过以下链接公开获取: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。 目录字段说明 GAIAID(长整型64位):盖亚天体源ID RA(双精度浮点型):SMSS DR4中的赤经(J2000坐标系) DEC(双精度浮点型):SMSS DR4中的赤纬(J2000坐标系) GL(双精度浮点型):基于ICRS坐标推导得到的银经 GB(双精度浮点型):基于ICRS坐标推导得到的银经(注:原文描述疑似笔误,此处保留原文表述) US(单精度浮点型):SMSS DR4中的u波段星等 ERR_US(单精度浮点型):SMSS DR4中u波段星等的测量误差 VS(单精度浮点型):SMSS DR4中的v波段星等 ERR_VS(单精度浮点型):SMSS DR4中v波段星等的测量误差 GS(单精度浮点型):SMSS DR4中的g波段星等 ERR_GS(单精度浮点型):SMSS DR4中g波段星等的测量误差 RS(单精度浮点型):SMSS DR4中的r波段星等 ERR_RS(单精度浮点型):SMSS DR4中r波段星等的测量误差 IS(单精度浮点型):SMSS DR4中的i波段星等 ERR_IS(单精度浮点型):SMSS DR4中i波段星等的测量误差 ZS(单精度浮点型):SMSS DR4中的z波段星等 ERR_ZS(单精度浮点型):SMSS DR4中z波段星等的测量误差 BP(单精度浮点型):盖亚EDR3中的Bp波段星等 ERR_BP(单精度浮点型):盖亚EDR3中Bp波段星等的测量误差 RP(单精度浮点型):盖亚EDR3中的Rp波段星等 ERR_RP(单精度浮点型):盖亚EDR3中Rp波段星等的测量误差 GG(单精度浮点型):盖亚EDR3中的G波段星等 ERR_GG(单精度浮点型):盖亚EDR3中G波段星等的测量误差 EBV_SFD(单精度浮点型):基于SFD98消光图得到的E(B-V)色余,已针对14%的系统误差进行校正 RUWE(单精度浮点型):盖亚EDR3中的归一化单位权重误差 PMRA(单精度浮点型):盖亚EDR3中的赤经方向自行 ERR_PMRA(单精度浮点型):盖亚EDR3中赤经方向自行的测量误差 PMDEC(单精度浮点型):盖亚EDR3中的赤纬方向自行 ERR_PMDEC(单精度浮点型):盖亚EDR3中赤纬方向自行的测量误差 PARALLAX(单精度浮点型):盖亚EDR3中的视差 ERR_PARALLAX(单精度浮点型):盖亚EDR3中视差的测量误差 DIST(单精度浮点型):天体距离 ERR_DIST(单精度浮点型):天体距离的测量误差 FLG_DIST(字符串型):距离推导方法标识,可选值为CMD、CMD_NOBIAS及Gaia TEFF(单精度浮点型):有效温度(effective temperature) ERR_TEFF(单精度浮点型):有效温度的测量误差 LOGG(单精度浮点型):表面重力(surface gravity,以log10(g)形式存储,单位为cm/s²) ERR_LOGG(单精度浮点型):表面重力的测量误差 FEH(单精度浮点型):测光金属丰度(photometric metallicity,即[Fe/H]) ERR_FEH(单精度浮点型):测光金属丰度的测量误差 FLG_FEH(字符串型):[Fe/H]估算所用恒星色指数标识,可选值为ub、vb及ub+vb AGE(单精度浮点型):恒星年龄 ERR_AGE(单精度浮点型):恒星年龄的测量误差 MASS(单精度浮点型):恒星质量 ERR_MASS(单精度浮点型):恒星质量的测量误差 DIST_BJ(单精度浮点型):基于Bailer-Jones等人2021年研究(AJ, 161, 147)得到的天体距离 ERR_DIST_BJ(单精度浮点型):基于Bailer-Jones等人2021年研究得到的距离测量误差 RV(单精度浮点型):视向速度(radial velocity) ERR_RV(单精度浮点型):视向速度的测量误差 FLG_RV(字符串型):视向速度数据源标识,可选值包括APOGEE-DR17、GALAH-DR3、Gaia-DR3、LAMOST-DR11、RAVE-DR5及SDSS-DR12 CLASS(字符串型):恒星分类标识,可选值为矮星(dwarf)与巨星(giant) SUB_CLASS(字符串型):矮星子类分类标识,可选值为CMD_BINARY、CMD_MS及CMD_TO

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Zenodo
创建时间:
2025-03-31
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