NGC5471B: a Hypernova Remnant Candidate in M101

Mathematics – Logic

Scientific paper

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Chandra Proposal Id #03500236

Scientific paper

We propose a Chandra ACIS-S observation of NGC5471B --- the best X-ray-emitting hypernova remnant candidate recently identified in a giant HII region of the nearby face-on spiral galaxy M101. With the superb pointing accuracy and spatial resolution as well as the broad band coverage, this observation will enable us to either confirm or reject this identification. If it is confirmed, the remnant could have strong implications for understanding not only Gamma-ray bursts observed at cosmological distances, but also various energetic interstellar structures in nearby galaxies. The counting statistics will further allow for a detailed morphological study of X-ray emission from the giant HII region for spectral and timing analyses of point-like X-ray sources in the field of the galaxy.

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