@article{2624, author = {D. Lazzati and Mitchell Begelman}, title = {Non-Thermal Emission from the Photospheres of Gamma-Ray Burst Outflows. I. High-Frequency Tails}, year = {2010}, journal = {The Astrophysical Journal}, volume = {725}, pages = {1137-1145}, month = {12/2010}, doi = {10.1088/0004-637x/725/1/1137}, }