Physics
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hst..prop.5387c&link_type=abstract
HST Proposal ID #5387
Physics
Hst Proposal Id #5387 Hot Stars Neutron Stars
Scientific paper
Observations with the Wide Field Planetary Camera 2 in the H-ALPHA line aim at probing the spatial structure near the apex of a spectacular bow shock produced by a fast neutron star. The nebula was discovered with the Palomar 5-meter telescope and shows evidence for structure that is unresolved. Theoretically, there should be structure as fine as the resolution limit of the WFPC2 camera. Our goal is to image details of the bow shock close to the contact discontinuity so that we may solve for the three dimensional orientation of the nebula and, hence, the actual direction of motion of the pulsar. Through modeling of the geometry and flux measurements, and including the outcome of further ground based spectroscopy, and radio imaging, we can also put strong constraints on the distance. The net outcome should be a better understanding of the structure of pulsar driven bow shocks, constraints on density irregularities in the interstellar medium on length scales less than 0.001 par sec, and constraints on the content of relativistic pulsar winds.
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