Empirical metallicity-dependent calibrations of effective temperature against colours for dwarfs and giants based on interferometric data
Empirical metallicity-dependent calibrations of effective temperature against colours for dwarfs and giants based on interferometric data
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基于干涉数据对矮星和巨星的有效温度与颜色进行经验金属丰度校准
DOI：
10.1093/mnras/stv1991
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发表时间：
2015-08
影响因子：
4.8
通讯作者：
Zhang H W
中科院分区：
文献类型：
--
作者：
Huang Y;Liu X W;Yuan H B;Xiang M S;Chen B Q;Zhang H W
我们根据文献收集的约 200 颗附近恒星的直接有效温度测量值优于 2.5%，提出了对光度 IV 级和 V 级矮星以及光度 II 级和 III 级巨星的有效温度与颜色的经验金属丰度校准。对于光谱类型 M5 至 A0 的矮星，校准有效温度范围为 3,100 - 10,000 K；对于光谱类型 K5 至 G5 的巨星，校准有效温度范围为 3,100 - 5,700 K。四种光度系统的矮星总共有 21 种颜色，巨星有 18 种颜色，即约翰逊 ($UBVR_{\rm J}I_{\rm J}JHK$)、表兄弟 ($R_{\rm C}I_{\rm C}$)、斯隆数字巡天 (SDSS, $gr$) 和两微米全巡天 (2MASS, $JHK_{\rm s}$)，已校准。受当前样品金属丰度范围的限制，定标主要适用于盘状星([Fe/H]$\,\gtrsim\,-1.0$)。对于矮星和巨星来说，校准的归一化残差百分比通常分别为 2.0% 和 1.5%。目前的尺度与文献中提供的尺度（例如基于红外通量方法 IRFM 或光谱学的尺度）之间存在不同程度的系统差异。根据当前的校准，我们重新确定了太阳的颜色。我们还研究了当前正在进行的大规模低到中分辨率恒星光谱巡天所产生的有效温度的系统误差。我们表明，当前工作中提出的颜色校准 ($g-K_{\rm s}$) 为正在进行或即将进行的巡天估计恒星有效温度提供了宝贵的工具。
We present empirical metallicity-dependent calibrations of effective temperature against colours for dwarfs of luminosity classes IV and V and for giants of luminosity classes II and III, based on a collection from the literature of about two hundred nearby stars with direct effective temperature measurements of better than 2.5 per cent. The calibrations are valid for an effective temperature range 3,100 - 10,000 K for dwarfs of spectral types M5 to A0 and 3,100 - 5,700 K for giants of spectral types K5 to G5. A total of twenty-one colours for dwarfs and eighteen colours for giants of bands of four photometric systems, i.e. the Johnson ($UBVR_{\rm J}I_{\rm J}JHK$), the Cousins ($R_{\rm C}I_{\rm C}$), the Sloan Digital Sky Survey (SDSS, $gr$) and the Two Micron All Sky Survey (2MASS, $JHK_{\rm s}$), have been calibrated. Restricted by the metallicity range of the current sample, the calibrations are mainly applicable for disk stars ([Fe/H]$\,\gtrsim\,-1.0$). The normalized percentage residuals of the calibrations are typically 2.0 and 1.5 per cent for dwarfs and giants, respectively. Some systematic discrepancies at various levels are found between the current scales and those available in the literature (e.g. those based on the infrared flux method IRFM or spectroscopy). Based on the current calibrations, we have re-determined the colours of the Sun. We have also investigated the systematic errors in effective temperatures yielded by the current on-going large scale low- to intermediate-resolution stellar spectroscopic surveys. We show that the calibration of colour ($g-K_{\rm s}$) presented in the current work provides an invaluable tool for the estimation of stellar effective temperature for those on-going or upcoming surveys.
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影响因子：
6.5
作者：
R. Ligi;D. Mourard;A. Lagrange;K. Perraut;T. Boyajian;P. B'erio;N. Nardetto;I. Tallon-Bosc;H. Mcalister;T. Brummelaar;S. Ridgway;J. Sturmann;L. Sturmann;N. Turner;C. Farrington;P. J. Goldfinger
通讯作者：
R. Ligi;D. Mourard;A. Lagrange;K. Perraut;T. Boyajian;P. B'erio;N. Nardetto;I. Tallon-Bosc;H. Mcalister;T. Brummelaar;S. Ridgway;J. Sturmann;L. Sturmann;N. Turner;C. Farrington;P. J. Goldfinger
影响因子：
4.8
作者：
L. Casagrande;L. Portinari;I. Glass;D. Laney;Silva Aguirre;J. Datson;J. Andersen;B. Nordström;J. Holmberg;C. Flynn;M. Asplund
通讯作者：
L. Casagrande;L. Portinari;I. Glass;D. Laney;Silva Aguirre;J. Datson;J. Andersen;B. Nordström;J. Holmberg;C. Flynn;M. Asplund
DOI：
10.1086/148462
发表时间：
1965-11
期刊：
The Astrophysical Journal
影响因子：
--
作者：
T. P. Stecher
通讯作者：
T. P. Stecher
DOI：
10.1086/588653
发表时间：
2008-03
期刊：
The Astrophysical Journal
影响因子：
--
作者：
E. Baines;H. Mcalister;T. Brummelaar;N. Turner;J. Sturmann;L. Sturmann;S. Ridgway
通讯作者：
E. Baines;H. Mcalister;T. Brummelaar;N. Turner;J. Sturmann;L. Sturmann;S. Ridgway
影响因子：
6.5
作者：
F. Th'evenin;P. Kervella;B. Pichon;P. Morel;E. Difolco;Y. Lebreton
通讯作者：
F. Th'evenin;P. Kervella;B. Pichon;P. Morel;E. Difolco;Y. Lebreton