Measuring Neutron Star Recoil from a Supernova: a Unique Opportunity in Puppis a

Details Measuring Neutron Star Recoil from a Supernova: a Unique Opportunity in Puppis a Measuring Neutron Star Recoil from a Supernova: a Unique Opportunity in Puppis a

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1455w&link_type=abstract

Chandra Proposal ID #05500321

Computer Science

Chandra Proposal Id #05500321

Scientific paper

We propose a second HRC-I imaging observation of the radio-quiet pulsar RXJ0822-4300, located near the center of the Puppis A supernova remnant. The distribution of ejecta-rich optical filaments in Puppis A suggests that this pulsar may be recoiling at about 100 mas/yr, as a result of an asymmetry in the core-collapse supernova that produced both Puppis A and the pulsar some 3700 yr ago. The proposed second-epoch image will be compared with a near identical observation from Dec 1999, in order to measure the pulsar proper motion. If successful, Puppis A will become the first SNR where both asymmetric ejecta and recoil of a compact central source have been directly measured, providing incontrovertible evidence that at least some core-collapse supernovae are asymmetric.

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