DISCOVERY OF A POSSIBLE WOLF-RAYET STAR AT THE GALACTIC-CENTER

被引：35

作者：

BLUM, RD ^{[1
]}

SELLGREN, K ^{[1
]}

DEPOY, DL ^{[1
]}

机构：

[1] ASSOC UNIV RES ASTRON INC,NATL OPT ASTRON OBSERV,CERRO TOLOLO INTER AMER OBSERV,LA SERENA,CHILE

来源：

ASTROPHYSICAL JOURNAL | 1995年 / 440卷 / 01期

关键词：

GALAXY; CENTER; STARS; FORMATION; WOLF-RAYET;

D O I：

10.1086/187750

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the discovery of a possible Wolf-Rayet star located at 0.5 pc projected radius from the center of the Galaxy. A K-band (2.2 mu m) spectrum of the Galactic center object shows strong similarities with published K-band spectra of WC9 stars, including emission lines due to He I at 2.06 mu m, the C IV 3d(2)D-3p(2)P(0) multiplet with components between 2.071 and 2.084 mu m, and a blend of two C III lines and He I near 2.11 mu m.

引用

页码：L17 / L20

页数：4

共 25 条

[1]

ALLEN DA, 1990, MON NOT R ASTRON SOC, V244, P706

[2]

BLUM RD, 1995, IN PRESS APJ, V441

[3] THE OFPE WN9 CLASS IN THE LARGE MAGELLANIC CLOUD [J].

BOHANNAN, B ;

WALBORN, NR .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1989, 101 (639) :520-527

[4]

DEPOY DL, 1993, P SOC PHOTO-OPT INS, V1946, P667, DOI 10.1117/12.158725

[5] HIGH-RESOLUTION INFRARED IMAGING OF THE GALACTIC-CENTER [J].

DEPOY, DL ;

SHARP, NA .

ASTRONOMICAL JOURNAL, 1991, 101 (04) :1324-1328

[6] TERMINAL VELOCITIES OF WOLF-RAYET WINDS FROM INFRARED HE-I LINES [J].

EENENS, PRJ ;

WILLIAMS, PM .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1994, 269 (04) :1082-1098

[7] AN INFRARED VIEW OF WOLF-RAYET WC SUBTYPES .1. LINE IDENTIFICATION AND SPECTRAL CHARACTERISTICS [J].

EENENS, PRJ ;

WILLIAMS, PM ;

WADE, R .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1991, 252 (02) :300-312

[8]

FORREST WJ, 1987, GALACTIC CTR, P153

[9] A CLUSTER OF HE-I EMISSION-LINE STARS IN THE GALACTIC-CENTER [J].

KRABBE, A ;

GENZEL, R ;

DRAPATZ, S ;

ROTACIUC, V .

ASTROPHYSICAL JOURNAL, 1991, 382 (01) :L19-L22

[10] M-SUPERGIANTS AND STAR FORMATION AT THE GALACTIC-CENTER [J].

LEBOFSKY, MJ ;

RIEKE, GH ;

TOKUNAGA, AT .

ASTROPHYSICAL JOURNAL, 1982, 263 (02) :736-740

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