The Millisecond Pulsar PSR J0437-4715: Magnetosphere or Atmosphere?

Details The Millisecond Pulsar PSR J0437-4715: Magnetosphere or Atmosphere? The Millisecond Pulsar PSR J0437-4715: Magnetosphere or Atmosphere?

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..107p&link_type=abstract

Chandra Proposal ID #01500612

Computer Science

Chandra Proposal Id #01500612

Scientific paper

PSR J0437-4715 is the nearest millisecond pulsar, and the only one that can be studied comprehensively in X-rays. The leading interpretation of its ROSAT spectrum and energy-dependent pulse shape involves thermal emission from heated polar caps emitting as a weakly magnetized neutron star atmosphere. Fundamental parameters such as M/R can be derived if such an interpretation is correct. ACIS-I, with its good spectral resolution and high-energy response, can confirm this model and determine the chemical composition of the atmosphere. The HRC-I will also be used for precise timing relative to the radio pulse, and for high-resolution imaging of the pulsar, its bow shock, and its possible compact nebula.

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