LSI +61°303: A Pulsar Wind Nebula in a Binary?

D. A. Leahy
2004 Symposium - International astronomical union  
LSI +61°303 outbursts are modeled as a pulsar wind nebula expanding inside the environment provided by the Be companion star's stellar wind and photon flux. A set of equations describing the system is developed and solved numerically for representative sets of parameters. Emission in X-rays through gamma-rays is due to inverse Compton emission from relativistic electrons around the pulsar. The radio emission is due to synchrotron emission of varying optical depth, which yields a varying
more » ... index. The peak of X-ray emission is near periastron and the peak of the radio emission is near apastron, due to reduced confining pressure on the relativistic electron cloud and its subsequent rapid expansion.
doi:10.1017/s0074180900181021 fatcat:oqgiojkjend4bcg5hj7wxgj2we