A High Purity Discovery Program for Isolated Neutron Stars

Details A High Purity Discovery Program for Isolated Neutron Stars A High Purity Discovery Program for Isolated Neutron Stars

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cxo..prop.1967a&link_type=abstract

Chandra Proposal ID #07500669

Physics

Chandra Proposal Id #07500669

Scientific paper

Only 7 isolated radio-quiet neutron stars emitting thermal X-rays (XINS) are known, a sample too small/diverse to address such fundamental issues as the equation of state of degenerate neutron matter. We propose to expand this sample via short Chandra exposures of 13 ROSAT error circles devoid of plausible optical counterparts to the SDSS m=22 depth. We are an order of magnitude more selective than previous searches, excluding the 99.9 percent of ROSAT error circles that contain more common X-ray emitting subclasses, and the number of candidates we find in our stringent selection is consistent with XINS population models. Pinpoint Chandra positions confirmed as entirely blank at m=22 would verify the presence of likely XINS, enabling detailed follow-up studies of neutron star physics.

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