Evidence for a Canonical Gamma-Ray Burst Afterglow Light Curve in the Swift XRT Data
@article{Nousek2006EvidenceFA, title={Evidence for a Canonical Gamma-Ray Burst Afterglow Light Curve in the Swift XRT Data}, author={J. Nousek and C. Kouveliotou and D. Grupe and K. Page and J. Granot and E. Ramirez-Ruiz and S. Patel and D. Burrows and V. Mangano and S. Barthelmy and A. Beardmore and S. Campana and M. Capalbi and G. Chincarini and G. Cusumano and A. Falcone and N. Gehrels and P. Giommi and M. Goad and O. Godet and C. Hurkett and J. A. Kennea and A. Moretti and P. O'brien and J. Osborne and P. Romano and G. Tagliaferri and A. Wells}, journal={The Astrophysical Journal}, year={2006}, volume={642}, pages={389-400} }
We present new observations of the early X-ray afterglows of the first 27 gamma-ray bursts (GRBs) well observed by the Swift X-Ray Telescope (XRT). The early X-ray afterglows show a canonical behavior, where the light curve broadly consists of three distinct power-law segments: (1) an initial very steep decay (/t � � with 3P � 1 P5), followed by (2) a very shallow decay (0:5P � 2 P1:0), and finally (3) a somewhat steeper decay (1P � 3 P1:5). These power-law segments are separated by two… CONTINUE READING
Figures and Tables from this paper
232 Citations
Less noticeable shallow decay phase in early X-ray afterglows of GeV/TeV-detected gamma-ray bursts
- Physics
- 2019
- 2
- PDF
Using Swift observations of prompt and afterglow emission to classify GRBs
- Physics, Medicine
- Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
- 2007
- 6
- Highly Influenced
- PDF
The prompt–early afterglow connection in gamma-ray bursts: implications for the early afterglow physics
- Physics
- 2014
- 13
- Highly Influenced
- PDF
Can a double component outflow explain the X-ray and optical lightcurves of Swift Gamma-Ray Bursts?
- Physics
- 2011
- 2
The Full Curvature Effect Expected in Early X-Ray Afterglow Emission from Gamma-Ray Bursts
- Physics
- 2008
- 16
- PDF
Swift discovery of gamma-ray bursts without a jet break feature in their X-ray afterglows
- Physics, Computer Science
- 2006
- 41
- PDF
References
SHOWING 1-10 OF 74 REFERENCES
Physical Processes Shaping Gamma-Ray Burst X-Ray Afterglow Light Curves: Theoretical Implications from the Swift X-Ray Telescope Observations
- Physics
- 2005
- 682
- PDF
GRB 050117: Simultaneous gamma-ray and X-ray observations with the Swift satellite
- Physics, Computer Science
- 2005
- 17
- PDF
An unexpectedly rapid decline in the X-ray afterglow emission of long γ-ray bursts
- Physics
- Nature
- 2005
- 209
- PDF