CHARACTERIZATION OF THE MOST LUMINOUS STAR IN M33: A SUPER SYMBIOTIC BINARY

被引：4

作者：

Mikolajewska, Joanna ^{[1
]}

Caldwell, Nelson ^{[2
]}

Shara, Michael M. ^{[3
]}

Ilkiewicz, Krystian ^{[1
,4
]}

机构：

[1] Nicholas Copernicus Astron Ctr, PL-00716 Warsaw, Poland

[2] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[3] Amer Museum Nat Hist, Dept Astrophys, New York, NY 10024 USA

[4] Univ Warsaw Observ, PL-00478 Warsaw, Poland

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2015年 / 799卷 / 02期

关键词：

binaries: symbiotic; galaxies: individual (M33); H II regions; stars: evolution; stars: massive; LARGE-MAGELLANIC-CLOUD; MASSIVE STARS; ULTRAVIOLET EXTINCTION; INFRARED PHOTOMETRY; IIN SUPERNOVAE; SPITZER; PROGENITORS; TRANSIENTS; CATALOG; CENSUS;

D O I：

10.1088/2041-8205/799/2/L16

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first spectrum of the most luminous infrared star in M33, and use it to demonstrate that the object is almost certainly a binary composed of a massive O star and a dust-enshrouded red hypergiant. This is the most luminous symbiotic binary ever discovered. Its radial velocity is an excellent match to that of the hydrogen gas in the disk of M33, supporting our interpretation that it is a very young and massive binary star.

引用

页码：1 / 5

页数：5

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