Resonant Compton scattering in models of gamma-ray burst sources
We consider here the spectra produced from the resonant Compton scattering of blackbody and power-law photons by a beam of relativistic electrons/positrons. The beam is assumed to be directed radially outward along the magnetic axis of a highly magnitized neutron star. We assume a dipole magnetic field geometry, and include the effects of magnetic Compton scattering energy losses on the particles in the beam during transport. A range of surface intensities for a magnetic field of 2 {times} 10{sup 12} Gauss are studied for a power-law electron/positron source functions of index {Gamma}. The calculated scattered photon spectra are similar to observed gamma-ray burst spectra with a spectral index {alpha} which breaks from {alpha} {approx_equal} 1 to {alpha} {approx_equal} {Gamma}.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10136943
- Report Number(s):
- UCRL-JC--110087; CONF-9110310--4; ON: DE92010720
- Country of Publication:
- United States
- Language:
- English
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