@inproceedings{f814466f0d2d4778a1765f0574e8b718,
title = "Shallow decay of early X-ray afterglows from inhomogeneous gamma-ray burst jets",
abstract = "Almost all the X-ray afterglows of gamma-ray bursts (GRBs) observed by the Swift satellite have a shallow decay phase in the first thousands of seconds. We show that in an inhomogeneous jet (multiple-subjet or patchy-shell) model the superposition of the afterglows of off-axis subjets (patchy shells) can have the shallow decay phase. The necessary condition for obtaining the shallow decay phase is that γ-ray bright subjets (patchy shells) should have γ-ray efficiency higher than previously estimated, and should be surrounded by γ-ray dim subjets (patchy shells) with low γ-ray efficiency. Our model predicts that events with dim prompt emission have the conventional afterglow light curve without the shallow decay phase like GRB 050416A.",
keywords = "γ-ray bursts, γ-ray sources",
author = "K. Toma and K. Ioka and R. Yamazaki and T. Nakamura",
year = "2006",
month = may,
day = "19",
doi = "10.1063/1.2207916",
language = "English",
isbn = "0735403260",
series = "AIP Conference Proceedings",
pages = "337--340",
booktitle = "GAMMA-RAY BURSTS IN THE SWIFT ERA",
note = "GAMMA-RAY BURSTS IN THE SWIFT ERA: 16th Maryland Astrophysics Conference ; Conference date: 29-11-2005 Through 02-12-2005",
}