Discovery of a new Wolf-Rayet star using SAGE-LMC

Авторы: Gvaramadze V.V., A-N Chene, Kniazev A.Y., Schnurr O.
Сборник: Four Decades of Research on Massive Stars: A Scientific Meeting in Honour of Anthony Moffat
Год издания: 2012
Место издания: Astronomical Society of the Pacific San Francisco
Первая страница: 511
Последняя страница: 513
Аннотация: We report the first-ever discovery of an extragalactic Wolf-Rayet (WR)star with Spitzer. A new WR star in the Large Magellanic Cloud (LMC) was revealed via detection of its circumstellar shell using 24 {\mu}m images obtained in the framework of the Spitzer Survey of the Large Magellanic Cloud (SAGE-LMC). Subsequent spectroscopic bservations with the Gemini South resolved the central star in two components, one of which is a WN3b+abs star, while the second one is a B0V star. We consider the lopsided brightness distribution over the circumstellar shell as an indication that the WR star is a runaway and use this interpretation to identify a possible parent cluster of the star.
Добавил в систему: Гварамадзе Василий Васильевич

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