The Unusual Supernova Remnant Surrounding the Ultraluminous X-Ray Source IC 342-X1

Details The Unusual Supernova Remnant Surrounding the Ultraluminous X-Ray Source IC 342-X1 The Unusual Supernova Remnant Surrounding the Ultraluminous X-Ray Source IC 342-X1

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ingn....7....9r&link_type=abstract

The Newsletter of the Isaac Newton Group of Telescopes (ING Newsl.), issue no. 7, p. 9-10.

Mathematics

Supernova Remnant, Ic 342-X1, Ultraluminous X-Ray Source

Scientific paper

WHT/INTEGRAL observations have shown a large-diameter (110 pc) supernova remnant to encircle the position of the Ultraluminous X-ray Source (ULX) IC 342 X-1. We infer a remarkable initial energy input to the SNR, at least 2-3 times greater than the canonical value for an 'ordinary' SNR of 10^51 erg. In addition, two regions on the inside of the SNR shell are bright in [OIII]5007 emission, possibly as the result of photoionization by the ULX. If this is the case, the morphology of the nebulosity implies that the X-ray emission of the ULX is anisotropic. The presence of the ULX, likely to be a black hole X-ray binary, within an unusually energetic SNR suggests that we may be observing the aftermath of a gamma-ray burst.

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