Gamma-ray and X-ray luminosities from spin-powered pulsars in the full polar cap cascade model

Zhang, Bing; Harding, Alice K.
April 2000
AIP Conference Proceedings;2000, Vol. 510 Issue 1, p272
Academic Journal
We modify the conventional curvature radiation (inverse Compton scattering)+synchrotron radiation polar cap cascade model by including the inverse Compton scattering of the higher generation pairs. Within the framework of the space-charge-limited-flow acceleration model with frame-dragging proposed by Harding & Muslimov (1998), such a full polar cap cascade scenario can well reproduce the L[sub γ]∝(L[sub sd])[sup 1/2] and the L[sub x]∼10[sup -3]L[sub sd] dependences observed from the known spin-powered pulsars. According to this model, the “pulsed” soft ROSAT-band X-rays from most of the millisecond pulsars might be of thermal origin, if there are no strong multipole magnetic components near their surfaces. © 2000 American Institute of Physics.


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