TY - JOUR
T1 - High-energy afterglow emission from gamma-ray bursts
AU - Fan, Yi Zhong
AU - Piran, Tsvi
AU - Narayan, Ramesh
AU - Wei, Da Ming
PY - 2008/3
Y1 - 2008/3
N2 - We calculate the very high-energy (sub-GeV to TeV) inverse Compton emission of GRB afterglows. We argue that this emission provides a powerful test of the currently accepted afterglow model. We focus on two processes: synchrotron self-Compton emission within the afterglow blast wave, and external inverse Compton emission which occurs when flare photons (produced by an internal process) pass through the blast wave. We show that if our current interpretations of the Swift X-ray telescope (XRT) data are correct, there should be a canonical high-energy afterglow emission light curve. Our predictions can be tested with high-energy observatories such as GLAST, Whipple, HESS and MAGIC. Under favourable conditions we expect afterglow detections in all these detectors.
AB - We calculate the very high-energy (sub-GeV to TeV) inverse Compton emission of GRB afterglows. We argue that this emission provides a powerful test of the currently accepted afterglow model. We focus on two processes: synchrotron self-Compton emission within the afterglow blast wave, and external inverse Compton emission which occurs when flare photons (produced by an internal process) pass through the blast wave. We show that if our current interpretations of the Swift X-ray telescope (XRT) data are correct, there should be a canonical high-energy afterglow emission light curve. Our predictions can be tested with high-energy observatories such as GLAST, Whipple, HESS and MAGIC. Under favourable conditions we expect afterglow detections in all these detectors.
KW - Gamma rays: bursts
KW - ISM: jets and outflows
KW - Radiation mechanisms: non-thermal
UR - http://www.scopus.com/inward/record.url?scp=40249103503&partnerID=8YFLogxK
U2 - 10.1111/j.1365-2966.2007.12765.x
DO - 10.1111/j.1365-2966.2007.12765.x
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AN - SCOPUS:40249103503
SN - 0035-8711
VL - 384
SP - 1483
EP - 1501
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 4
ER -