Anisotropic low-energy electron pitch angles reduce synchrotron polarization degrees in gamma-ray and X-ray bands of GRB prompt emission compared to isotropic cases, with optical band behavior depending on the slope m, offering a possible match to some observations.
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Decaying magnetic fields in fast-cooling synchrotron emission partially harden the low-energy index but still produce a distribution centered near α ≈ −1.5, falling short of reproducing the observed GBM catalog at the population level.
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Synchrotron polarization of anisotropic electron distribution in GRB prompt emission
Anisotropic low-energy electron pitch angles reduce synchrotron polarization degrees in gamma-ray and X-ray bands of GRB prompt emission compared to isotropic cases, with optical band behavior depending on the slope m, offering a possible match to some observations.
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Fast-Cooling Synchrotron in Decaying Magnetic Fields: Implications for the GRB Spectral Distribution
Decaying magnetic fields in fast-cooling synchrotron emission partially harden the low-energy index but still produce a distribution centered near α ≈ −1.5, falling short of reproducing the observed GBM catalog at the population level.