HUBBLE-SPACE-TELESCOPE SPECTROSCOPY OF OB STARS IN M31

被引：21

作者：

HUTCHINGS, JB

BIANCHI, L

LAMERS, HJGLM

MASSEY, P

MORRIS, SC

机构：

[1] OSSERV ASTRON TORINO,I-10025 PINO TORINESE,ITALY

[2] SPACE RES LAB,3584 CA UTRECHT,NETHERLANDS

[3] NASA,ESA,WASHINGTON,DC 20546

[4] KITT PEAK NATL OBSERV,TUCSON,AZ 85726

来源：

ASTROPHYSICAL JOURNAL | 1992年 / 400卷 / 01期

关键词：

GALAXIES; INDIVIDUAL; M31; ISM; DUST; EXTINCTION; STARS; MASS LOSS;

D O I：

10.1086/186643

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have obtained UV spectra of two luminous hot stars in M31 with the Hubble Space Telescope. The stars are of late O and WN spectral type and lie on opposite sides of M31. We derive UV extinction curves for M31 which differ from both the Galaxy and the LMC. We find differences between the IS absorbers in both lines of sight in M31 and in the Galactic halo, 77" apart. The stellar wind-driven mass loss of the stars is found to be 10 times lower than in similar Galactic stars. One star appears to be an eclipsing W-R binary.

引用

页码：L35 / L38

页数：4

共 18 条

[1] WOLF-RAYET STARS IN LOCAL GROUP GALAXIES - NUMBERS AND SPECTRAL PROPERTIES [J].