TOMOGRAPHIC SEPARATION OF COMPOSITE SPECTRA - THE COMPONENTS OF THE O-STAR SPECTROSCOPIC BINARY AO-CASSIOPEIAE

被引：100
作者：
BAGNUOLO, WG
GIES, DR
机构：
[1] Ctr. High Angular Resolution Astron., Department of Physics and Astronomy, Georgia State University, Atlanta
来源：
ASTROPHYSICAL JOURNAL | 1991年 / 376卷 / 01期
关键词：
ANALYTICAL METHODS; STARS; BINARIES; INDIVIDUAL; (AO-CASSIOPEIAE); ULTRAVIOLET; SPECTRA;
D O I：
10.1086/170276
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have analyzed the UV photospheric lines of the short-period, double-lined O-star spectroscopic binary AO Cas. Archival data from IUE (16 spectra uniformly distributed in orbital phase) were analyzed with a tomography algorithm to produce the separate spectra of the two stars in six spectral regions. The spectral classifications of the primary and secondary, 09.5 Ill and 08 V, respectively, were estimated through a comparison of UV line ratios with those in spectral standard stars. An intensity ratio of 0.5-0.7 (primary brighter) at 1600 angstrom is compatible with the data.
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页码：266 / 271
页数：6
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