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Chandra reveals a black-hole X-ray binary within the ultraluminous supernova remnant MF 16

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 نشر من قبل Tim Roberts
 تاريخ النشر 2003
  مجال البحث فيزياء
والبحث باللغة English
 تأليف T.P. Roberts




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We present evidence, based on Chandra ACIS-S observations of the nearby spiral galaxy NGC 6946, that the extraodinary 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.



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