Constraining the Distance & Temperature of LAT PSR J1742-20, The Newly Discovered Nearby Middle-Aged Neutron Star

Details Constraining the Distance & Temperature of LAT PSR J1742-20, The Newly Discovered Nearby Middle-Aged Neutron Star Constraining the Distance & Temperature of LAT PSR J1742-20, The Newly Discovered Nearby Middle-Aged Neutron Star

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cxo..prop.2845s&link_type=abstract

Chandra proposal ID #11500877

Computer Science

Scientific paper

The recent launch of Fermi has resulted in the discovery, in a blind search, of at least 14 previously unknown pulsars. One of these, LAT PSR J1742-20, has recently been identified as a radio pulsar. It has an estimated distance of 400 pc and characteristic age of 0.4 Myr making LAT PSR J1742-20 one of only three identified middle aged pulsars within 1 kpc. We have identified a SWIFT source as the likely X-ray counterpart. X-ray emission of middle aged pulsars is often dominated by its thermal component, which can be studied to constrain properties of the neutron star. We propose a 50ks ACIS-S observation of J1742-20 to provide the first accurate measurements of its thermal temperature and distance, and search for a potential pulsar wind nebula.

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