First Detection of Phase-dependent Colliding Wind X-Ray Emission outside the Milky Way | Zendy

Yaël Nazé | Zendy; M. F. Corcoran | Zendy; Gloria Koenigsberger | Zendy; A. F. J. Moffat | Zendy

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First Detection of Phase-dependent Colliding Wind X-Ray Emission outside the Milky Way

Author(s) -

Yaël Nazé,

M. F. Corcoran,

Gloria Koenigsberger,

A. F. J. Moffat

Publication year - 2007

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/513510

Subject(s) - milky way , ejecta , physics , astrophysics , x ray , astronomy , binary number , galaxy , optics , supernova , arithmetic , mathematics

After having reported the detection of X-rays emitted by the peculiar systemHD5980, we assess here the origin of this high-energy emission from additionalX-ray observations obtained with XMM-Newton. This research provides the firstdetection of apparently periodic X-ray emission from hot gas produced by thecollision of winds in an evolved massive binary outside the Milky Way. It alsoprovides the first X-ray monitoring of a Luminous Blue Variable only yearsafter its eruption and shows that the dominant source of the X-rays is notassociated with the ejecta.Comment: 13 pages, 3 figures and 1 table, accepted for publication in ApJ (letters

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