Vyas, Mukesh K. and Pe’er, Asaf and Eichler, David (2021) Predicting Spectral Parameters in the Backscattering-dominated Model for the Prompt Phase of GRBs. The Astrophysical Journal Letters, 918 (1). L12. ISSN 2041-8205
Vyas_2021_ApJL_918_L12.pdf - Published Version
Download (1MB)
Abstract
We present new results of the backscattering-dominated prompt emission model in which the photons generated through pair annihilation at the center of a gamma-ray burst (GRB) are backscattered through Compton scattering by an outflowing stellar cork. Using a Comptonized pair annihilation spectrum accompanied by bremsstrahlung radiation for seed photons, we show that the obtained spectra produce a low-energy photon index in the range α ∼ −1.95 to −1.1, steeper high-energy slopes β ∼ −3.5 to −2.4, and spectral peak energies approximately a few KeV to a few tens of MeV. These findings are consistent with the values covered in GRB prompt phase observations.
Item Type: | Article |
---|---|
Subjects: | Librbary Digital > Physics and Astronomy |
Depositing User: | Unnamed user with email support@librbarydigit.com |
Date Deposited: | 06 May 2023 08:56 |
Last Modified: | 14 Sep 2024 04:38 |
URI: | http://info.openarchivelibrary.com/id/eprint/583 |