Obtaining spatial and spectral information of a point source in RCW 86

Details Obtaining spatial and spectral information of a point source in RCW 86 Obtaining spatial and spectral information of a point source in RCW 86

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2718k&link_type=abstract

Chandra proposal ID #10500032

Physics

Scientific paper

ROSAT found an unresolved source in the supernova remnant RCW 86, which may be the putative neutron star. However, the positional accuracy obtained with ROSAT and XMM-Newton are insufficient to see whether this source has an optical counter part (in which case it is likely to be a star or background source, rather than a neutron star). The source is located off center toward the SW of the remnant. The remnant is bright in the SW, so the source may be closer to the explosion center than expected based on the geometrical center. Chandra observed RCW 86 several times, but the point source was always outside the field of view. In one pointing on the SW, the source fell just in between the ACIS-I ACIS-S chip gaps. Here we propose to observe for a 2000 s in order to obtain an accurate position.

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