The X-Ray Emission Associated with the Black Widow Pulsar B1957+20

Details The X-Ray Emission Associated with the Black Widow Pulsar B1957+20 The X-Ray Emission Associated with the Black Widow Pulsar B1957+20

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cxo..prop..578s&link_type=abstract

Chandra Proposal ID #02400316

Computer Science

Chandra Proposal Id #02400316

Scientific paper

The wind is the primary mechanism for carrying away a pulsar's spin-down energy, hence determining its nature is of central importance. The eclipsing binary PSR B1957+20 is presently the only system where we can study the wind of a weakly magnetized pulsar. Its wind ablates and heats its companion and powers a bow-shock nebula. ROSAT detections show that the wind produces X-rays, but can't confirm their origin. We propose Chandra observations where the spatial resolution will for the first time allow us to distinguish bow-shock and intra-binary emission, and if the latter, they will be sensitive to orbital modulations distinguishing between the companion and the pulsar as the origin. With this we will better determine the energy and particle composition of a low-magnetic field pulsar wind

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