Empirical calibration of the near-infrared Ca ii triplet — II. The stellar atmospheric parameters
Empirical calibration of the near-infrared Ca ii triplet — II. The stellar atmospheric parameters
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近红外 Ca ii 三重态的经验标定 — II. 恒星大气参数
DOI：
10.1046/j.1365-8711.2001.04689.x
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发表时间：
2001
影响因子：
4.8
通讯作者：
Spain.
中科院分区：
文献类型：
--
作者：
A. Cenarro;J. Gorgas;N. Cardiel;S. Pedraz;R. Peletier;A. Madrid;Spain.;Observatorio de Calar Alto;Almería;U. Nottingham;UK.;Instituto de Astrof'isica de Canarias;Spain.
We present a homogeneous set of stellar atmospheric parameters (T-eff, log g, [Fe/H]) for a sample of about 700 field and cluster stars which constitute a new stellar library in the near-IR developed for stellar population synthesis in this spectral region (lambda 8350-9020). Having compiled the available atmospheric data in the literature for field stars, we have found systematic deviations between the atmospheric parameters from different bibliographic references. The Soubiran, Katz & Cayrel sample of stars with very well determined fundamental parameters has been taken as our standard reference system, and other papers have been calibrated and bootstrapped against it. The obtained transformations are provided in this paper. Once most of the data sets were on the same system, final parameters were derived by performing error weighted means. Atmospheric parameters for cluster stars have also been revised and updated according to recent metallicity scales and colour-temperature relations.
