IRAS 17380-3031 - A NEW DUSTY LATE WC-TYPE WOLF-RAYET STAR

被引：20

作者：

COHEN, M

VANDERHUCHT, KA

WILLIAMS, PM

THE, PS

机构：

[1] SRON SPACE RES UTRECHT,3584 CA UTRECHT,NETHERLANDS

[2] ROYAL OBSERV,EDINBURGH EH9 3HJ,MIDLOTHIAN,SCOTLAND

[3] ASTRON INST ANTON PANNEKOEK,1098 SJ AMSTERDAM,NETHERLANDS

来源：

ASTROPHYSICAL JOURNAL | 1991年 / 378卷 / 01期

关键词：

INFRARED; SOURCES; STARS; CIRCUMSTELLAR SHELLS; INDIVIDUAL; (IRAS-17380-3031); WOLF-RAYET;

D O I：

10.1086/170431

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Systematic 12-mu-m flux-limited surveys of the complete IRAS LRS (Low Resolution Spectrometer) data base show that late-type WC (WCL) stars with circumstellar dust emission have unique mid-infrared spectra, suggesting a new method for the detection of such stars. By optical spectroscopy, we have confirmed that the prime LRS-selected WCL candidate, IRAS 17380-3031, is a very red WCL star. We classify it as WC8-9, with a probable distance of 3 +/- 1 kpc, and a total extinction of A(v) approximately 12.5 mag. This confirmation demonstrates the power of the LRS technique for discovery of dusty WCL stars with IRAS.

引用

页码：302 / 306

页数：5

共 32 条

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