NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-17 T18:58:21 PDT
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For refcode 2003MNRAS.341L..49R:
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NED Abstract

Copyright by Royal Astronomical Society. 2003MNRAS.341L..49R Chandra reveals a black hole X-ray binary within the ultraluminous supernova remnant MF 16 Roberts, T. P.; Colbert, E. J. M. Abstract. We present evidence, based on Chandra ACIS-S observations of the nearby spiral galaxy NGC 6946, that the extraordinary X-ray luminosity of the MF 16 supernova remnant actually arises in a black hole X-ray binary. This conclusion is drawn from the point-like nature of the X-ray source, its X-ray spectrum closely resembling the spectrum of other ultraluminous X-ray sources thought to be black hole X-ray binary systems, and the detection of rapid hard X-ray variability from the source. We briefly discuss the nature of the hard X-ray variability, and the origin of the extreme radio and optical luminosity of MF 16 in light of this identification. Keywords: supernova remnants, galaxies: individual: NGC 6946, X-rays: binaries
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