Cosmic Ray Positrons from Pulsars

Details Cosmic Ray Positrons from Pulsars Cosmic Ray Positrons from Pulsars

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.2602k&link_type=abstract

American Astronomical Society, HEAD meeting #11, #26.02; Bulletin of the American Astronomical Society, Vol. 41, p.697

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Pulsars are potential Galactic sources of positrons through pair cascades in their magnetospheres. There are, however, many uncertainties in establishing their contribution to the local primary positron flux. Among these are the local density of pulsars, the cascade pair multiplicities that determine the injection rate of positrons from the pulsar, the acceleration of the injected particles by the pulsar wind termination shock, their rate of escape from the pulsar wind nebula, and their propagation through the interstellar medium. I will discuss these issues in the context of what we are learning from the new Fermi pulsar detections and discoveries.

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