The Enigmatic X-Ray Pulsator in the PKS 1209-51/52 Supernova Remnant

Details The Enigmatic X-Ray Pulsator in the PKS 1209-51/52 Supernova Remnant The Enigmatic X-Ray Pulsator in the PKS 1209-51/52 Supernova Remnant

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..856z&link_type=abstract

Chandra Proposal ID #03500461

Computer Science

Chandra Proposal Id #03500461

Scientific paper

The Chandra Cycle 1 observations have allowed us to discover a 424 ms period of the radio-quiet central source in the SNR PKS 1209-51/52, which proves that the source is a neutron star. However, its true nature cannot be understood until the period derivative is measured. For instance, an active pulsar with unfavorably directed radio beam and a truly silent neutron star, whose X-ray pulsations are caused by a nonuniform distribution of the surface temperature, will show different values of the period derivative. The proposed 30 ks ACIS observation in Continuous Clocking mode will allow us to measure the period derivative, to check if there are long-term flux variations, to perform the phase-resolved spectral analysis, and to elucidate the nature of compact central objects in SNRs.

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