Compton scattering in strong magnetic fields and the paucity of X-rays in gamma-ray burst spectra

1989 ◽  
Vol 347 ◽  
pp. L13 ◽  
Author(s):  
Charles D. Dermer
Keyword(s):  
Magnetic Fields ◽  
Compton Scattering ◽  
Gamma Ray ◽  
X Rays ◽  
Strong Magnetic Fields ◽  
Gamma Ray Burst

scholarly journals How to probe GRB jets

2021 ◽  
Vol 62 (5) ◽  
pp. 5.24-5.27
Author(s):  
Núria Jordana-Mitjans
Keyword(s):  
Magnetic Fields ◽  
Linear Polarization ◽  
Gamma Ray ◽  
Strong Magnetic Fields ◽  
Gamma Ray Burst

Abstract Núria Jordana-Mitjans explains how she uses linear polarization to unveil strong magnetic fields in gamma-ray burst outflows

scholarly journals Gamma-Ray Bursts as Sources of Strong Magnetic Fields

2016 ◽  
pp. 481-528
Author(s):  
Jonathan Granot ◽  
Tsvi Piran ◽  
Omer Bromberg ◽  
Judith L. Racusin ◽  
Frédéric Daigne
Keyword(s):  
Magnetic Fields ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Strong Magnetic Fields

scholarly journals Physical Constraints on Models of Gamma-Ray Bursters

1986 ◽  
Vol 89 ◽  
pp. 305-321
Author(s):  
Richard I. Epstein
Keyword(s):  
Gamma Rays ◽  
Gamma Ray ◽  
High Energy ◽  
X Rays ◽  
Burst Source ◽  
Gamma Ray Burst ◽  
Physical Constraints ◽  
Low Energies ◽  
Energy Gamma ◽  
Photon Interactions

AbstractThe power per logarithmic bandwidth in gamma-ray burst spectra generally increases rapidly with energy through the x-ray range and does not cut off sharply above a few MeV. This spectral form indicates that a very small fraction of the energy from a gamma-ray burst source is emitted at low energies or is reprocessed into x-rays and that the high-energy gamma rays are not destroyed by photon-photon interactions. The implications are that the emission mechanism for the gamma-ray bursts is not synchrotron radiation from electrons that lose most of their energy before being re-accelerated and that either the regions from which the gamma rays are emitted are large compared to the size of a neutron star or the emission is collimated and beamed away from the stellar surface.

scholarly journals Quiescent Magnetar Emission: Resonant Compton Upscattering

2004 ◽  
Vol 218 ◽  
pp. 267-270
Author(s):  
Matthew G. Baring
Keyword(s):  
Compton Scattering ◽  
Gamma Ray ◽  
Stellar Surface ◽  
X Rays ◽  
Polar Cap ◽  
Inverse Compton Scattering ◽  
Strong Fields ◽  
Inverse Compton ◽  
Gamma Ray Emission

A principal candidate for quiescent non-thermal gamma-ray emission from magnetars is resonant inverse Compton scattering in the strong fields of their magnetospheres. This paper outlines expectations for such emission, formed from non-thermal electrons accelerated in a pulsar-like polar cap potential upscattering thermal X-rays from the hot stellar surface. The resultant spectra are found to be strikingly flat, with fluxes and strong pulsation that could be detectable by GLAST.

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