Chandra ACIS Survey of M33 (ChASeM33): Supernova Remnants

Astronomy and Astrophysics – Astronomy

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Scientific paper

In our deep Chandra X-ray survey of M33, we have obtained images of seven overlapping fields covering the central regions of M33 using the ACIS-I detector. The survey region includes most of the nearly one hundred supernova remnants (SNRs) which had been previously identified by using a combination of optical and radio imaging and spectroscopy. This survey finds ChASeM33 sources coincident (within 10 arcsec) with 31 of the 100 known supernova remnants in M33. A number of the ChASeM33 sources are spatially resolved, showing X-ray emission clearly extending beyond the size of the PSF. This includes several known SNRs and also some newly identified X-ray SNR candidates. We will report on the most interesting cases, and compare the optical and X-ray data for a number of these.
Support for this work was provided by NASA through Chandra Award Number G06-7073A and NASA contract NAS8-03060.

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