Evolution of the Bow Shock in the Guitar Nebula

Details Evolution of the Bow Shock in the Guitar Nebula Evolution of the Bow Shock in the Guitar Nebula

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001hst..prop.9129c&link_type=abstract

HST Proposal ID #9129

Computer Science

Hst Proposal Id #9129 Hot Stars

Scientific paper

We propose WFPC2 observations of the Guitar Nebula, a bow shock produced by the high-velocity {V>1000 kms} pulsar B2224+65. By comparison with a previous observation in 1994, a new narrow-band H-alpha image will allow exploitation of the change in pulsar location { 1"}, in order to: {a} quantify ambient interstellar density variations on scales <=10^-3 pc that perturb the shape of the bowshock near the contact discontinuity {size 0.2"}; and {b} better model the bowshock to determine the orientation of the pulsar velocity vector. The results will be combined with a prior ROSAT image and a deep X-ray exposure {Chandra, October 2000} and ground based images from Palomar Observatory that constrain the shock heating and large scale structure of the nebula. PSR B2224+65 has the highest estimated space velocity of any pulsar: these results will also improve the pulsar distance and velocity estimates, which are important inputs for the study of pulsar kicks and supernovae asymmetry.

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