Resonant Compton Cooling Rates in High-Field Pulsars and Magnetars

Details Resonant Compton Cooling Rates in High-Field Pulsars and Magnetars Resonant Compton Cooling Rates in High-Field Pulsars and Magnetars

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.1615w&link_type=abstract

American Astronomical Society, HEAD meeting #11, #16.15; Bulletin of the American Astronomical Society, Vol. 41, p.681

Statistics

Computation

Scientific paper

For inner magnetospheric models of hard X-ray and gamma-ray emission in high-field pulsars and magnetars, resonant Compton upscattering is anticipated to be the most efficient process for generating continuum radiation. This is due in part to the proximity of a hot soft photon bath from the stellar surface. Moreover, because the scattering process becomes resonant at the cyclotron frequency, the effective cross section exceeds the classical Thomson value by over two orders of magnitude, thereby enhancing the efficiency of continuum production. This paper discusses computations of the electron cooling rates for this process, which are needed for self-consistent resonant Compton models of non-thermal radiation from such highly-magnetized pulsars. It employs, for the first time, the Sokolov-Ternov spin-dependent QED cross section in such calculations. The results presented extend previous calculations of magnetic Thomson cooling to the domain of relativistic quantum effects, sampled in fields near and above the quantum critical value of 44.13 TeraGauss. The QED effects reduce the rates below extrapolations of the Thomson results. Determinations of these cooling rates, for both monoenergetic soft photons and thermal surface X-rays, as functions of magnetospheric colatitude and altitude for the interaction region, are presented along with associated analytical approximations.

Affiliated with

Also associated with

No associations

Rating

Resonant Compton Cooling Rates in High-Field Pulsars and Magnetars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Resonant Compton Cooling Rates in High-Field Pulsars and Magnetars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resonant Compton Cooling Rates in High-Field Pulsars and Magnetars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1093031