The distances to the x-ray binaries LSI +61° 303 and A0535+262

被引：78

作者：

Steele, IA ^{[1
]}

Negueruela, I

Coe, MJ

Roche, P

机构：

[1] Liverpool John Moores Univ, Astrophys Res Inst, Liverpool L3 3AF, Merseyside, England

[2] Univ Southampton, Dept Phys & Astron, Southampton S017 1BJ, Hants, England

[3] Univ Sussex, Ctr Astron, CPES, Brighton BN1 9QJ, E Sussex, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1998年 / 297卷 / 01期

关键词：

binaries : close; stars; emission-line; Be; stars : individual : LSI +61 degrees 303; stars : individual : A0535+262; X-rays : stars;

D O I：

10.1046/j.1365-8711.1998.01593.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Chevalier & Ilovaisky use Hipparcos data to show that the X-ray binary systems LSI+61 degrees 303 and A0535+262 are a factor of 10 closer (i.e. d similar to few hundred pc) than previously thought (d similar to 2 kpc). We present high-quality CCD spectra of the systems, and conclude that the spectral types, reddening acid absolute magnitudes of these objects are strongly inconsistent with the closer distances. We propose that the Hipparcos distances to these two systems are incorrect owing to their relatively faint optical magnitudes.

引用

页码：L5 / L10

页数：6

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