S. Guiriec, C. Kouveliotou, D. H. Hartmann, J. Granot, K. Asano, P. Meszaros, R. Gill, N. Gehrels, J. McEnery
Published 2016-06-23Version 1
The origin of prompt emission from gamma ray bursts remains to be an open question. Correlated prompt optical and gamma-ray emission observed in a handful of GRBs strongly suggests a common emission region, but failure to adequately fit the broadband GRB spectrum prompted the hypothesis of different emission mechanisms for the low- and high-energy radiations. We demonstrate that our multi-component model for GRB gamma-ray prompt emission provides an excellent fit to GRB 110205A from optical to gamma-ray energies. Our results show that the optical and highest gamma-ray emissions have the same spatial and spectral origin, which is different from the bulk of the X- and softest gamma-ray radiation. Finally, our accurate redshift estimate for GRB 110205A demonstrates promise for using GRBs as cosmological standard candles.
Comments: 6 pages of article (4 figures and 1 table). Submitted to ApJ Letters on June 23, 2016
On the synchrotron spectrum of GRB prompt emission
Towards a Better Understanding of the GRB Phenomenon: a New Model for GRB Prompt Emission and its effects on the New Non-Thermal L$_\mathrm{i}^\mathrm{NT}$-E$_\mathrm{peak,i}^\mathrm{rest,NT}$ relation
CGRO/BATSE Data Support the New Paradigm for GRB Prompt Emission and the New L$_{i}^{nTh}$-E$_{peak,i}^{nTh,rest}$ relation
![QR code for arXiv:1606.07193 [astro-ph.HE]](http://oss.arxitics.com/images/favicon.svg)