The gamma-ray conversion efficiency of rotation-powered pulsars

Details The gamma-ray conversion efficiency of rotation-powered pulsars The gamma-ray conversion efficiency of rotation-powered pulsars

Feb 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.294..177z&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 294, p. 177

Astronomy and Astrophysics

Astronomy

20

Pulsars, Gamma Ray Astronomy, Energy Conversion Efficiency, Stellar Rotation, Tables (Data), Electromagnetic Pulses

Scientific paper

We use a new self-consistent model to derive the conversion efficiency from rotation power to gamma-ray power for pulsars (etath). Our result indicates that etath varies as tau exp 6/7 P squared, where tau and P are the characteristic age and period of the pulsar, which shows that although the efficiency increases with the characteristic age of the pulsar, it also depends on the pulsar period. We test our model results with the survey of high-energy gamma-rays from pulsars by EGRET. Our model not only successfully explains the efficiency of the confirmed gamma-ray pulsars but also explains why the gamma-ray efficiency of millisecond pulsars is so low.

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