An X-ray Search for Extragalactic Supernova Remnants in Three Nearby Galaxies: NGC 45, NGC 247 and NGC 300

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Chandra Proposal Id #05600355

Scientific paper

We propose to conduct an X-ray search for supernova remnants (SNRs) in three nearby galaxies -- NGC 45, NGC 247 and NGC 300 -- using the ACIS-S3 chip on Chandra in imaging mode. These three galaxies are part of a high-resolution radio survey with the VLA intended to identify extragalactic SNRs. Chandra observations will detect X-ray SNRs in these galaxies and these sources will be combined with radio and optical samples, yielding a large number of equidistant SNRs in each galaxy. The luminosity, energy, diameter and other properties of these SNRs will be examined, and comparisons will be made between galactic environments, star formation and supernova rates. Properties of other X-ray sources detected in these observations (X-ray binaries and background sources) will also be analyzed.

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