@inproceedings{d5ec2c7f16ea4b9d9705dbd8bacba54d,
title = "Swift XRT observations of X-ray flares in GRB afterglows",
abstract = "The Swift XRT has been observing GRB afterglows since December 23, 2004. Three-quarters of these observations begin within 200 s of the burst onset, providing an unprecendented look at the behavior of X-ray emission from GRB afterglows in the first few hours after the burst. While most of the early afterglows have smoothly declining lightcurves, a substantial fraction has large X-ray flares on short time-scales. We suggest that these flares provide support for models with extended central engine activity producing late-time internal shocks.",
author = "Burrows, {David N.} and P. Romano and O. Godet and A. Falcone and C. Pagani and G. Cusumano and S. Campana and G. Chincarini and Hill, {J. E.} and P. Giommi and Goad, {M. R.} and Kennea, {J. A.} and S. Kobayashi and P. M{\'e}sz{\'a}ros and Nousek, {J. A.} and Osborne, {J. P.} and O'Brien, {P. T.} and Page, {K. L.} and G. Tagliaferri and B. Zhang",
year = "2006",
language = "English (US)",
isbn = "9290929154",
series = "European Space Agency, (Special Publication) ESA SP",
number = "604",
pages = "877--883",
booktitle = "X-ray Universe 2005",
edition = "604",
note = "X-ray Universe 2005 ; Conference date: 26-09-2005 Through 30-09-2005",
}