Published August 1990 | Version v1
Journal article Metadata-only

Magnetic field distribution in polar cap models of gamma-ray bursters

Creators

  • 1. Northwestern Univ., Evanston, IL (USA)
  • 2. Eotvos Lorand Tudomanyegyetem, Budapest (Hungary)
  • 3. Pennsylvania State Univ., University Park (USA)

Description

The high-energy spectral cutoffs are discussed as a function of angle predicted by magnetized polar cap models of gamma-ray bursters, in the presence of magnetic pair production and general relativistic effects. The effect of the photon escape beam shape on the relative probability of detection as a function of energy is calculated for a range of model parameters. These predictions are compared to the burster cutoff upper limits observed with SMM and are used to derive constraints on the detectable magnetic field strength distribution among bursters from future observations. A method for determining the intrinsic magnetic field distribution among gamma-ray bursting neutron stars is discussed. 19 refs

Additional details

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
359
Series
Astrophys. J.
Journal Page Range
438-443
ISSN
0004-637X
CODEN
ASJOA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
22014281
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
ASTROPHYSICS; COSMIC GAMMA BURSTS; COSMIC GAMMA SOURCES; MAGNETIC FIELD CONFIGURATIONS; MATHEMATICAL MODELS; NEUTRON STARS; PAIR PRODUCTION; POLAR REGIONS; RELATIVISTIC RANGE
Descriptors DEC
COSMIC RADIATION; COSMIC RAY SOURCES; ENERGY RANGE; IONIZING RADIATIONS; PARTICLE PRODUCTION; PRIMARY COSMIC RADIATION; RADIATIONS; STARS