The effective temperatures of O-type stars from UV spectroscopy

被引：6

作者：

Bianchi, Luciana ^{[1
]}

Garcia, Miriam ^{[2
]}

机构：

[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[2] CSIC INTA Ctr Astrobiol, Dept Astrophys, Madrid 28850, Spain

来源：

ADVANCES IN SPACE RESEARCH | 2014年 / 53卷 / 06期

关键词：

Stars: fundamental parameters; Stars: mass loss; Stars: early-type; Stars: winds; Outflows; Ultraviolet: stars; WINDS; PARAMETERS; STELLAR; MODELS;

D O I：

10.1016/j.asr.2013.08.009

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

We present an analysis of high resolution spectra in the far-UV UV range (similar to 905-2000 angstrom) with non-LTE, spherical, hydrodynamical, line-blanketed models, of three O-type Galactic stars, and derive their photospheric and wind parameters. These data extend previously analyzed samples and fill a gap in spectral type coverage. The combined sample confirms a revised (downward) T-eff scale with respect to canonical calibrations, as found in our previous works from UV and optical spectra, and in recent works by other authors. (C) 2013 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：973 / 981

页数：9

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