Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21714105y&link_type=abstract
American Astronomical Society, AAS Meeting #217, #141.05; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
The intrinsic variability (V) of prompt gamma-ray emission from gamma-ray burst (GRB) events is compared to the properties of the subsequent afterglow onset, yielding evidence of a correlation between V and the the optical onset's peak. We used Liang et al.'s (2009) fitted properties of the optical onset bump in 16 events with an observed optical rise and known redshift, and calculated V from the lightcurves in the Swift gamma-ray data archive. The optical onset properties are known to be mutually correlated; comparing these optical bump properties to V shows positive correlations at the 3-sigma level with (de-redshifted) width, peak time, rise, and decay times and negative correlations with peak flux and the ratio of rise to decay times. When the bump peak time or width are expressed as a ratio of the GRB duration (T90), the correlation evidence with V is weaker.
No associations
LandOfFree
Evidence for a Correlation Between Gamma-Ray Burst Variability and the Optical Afterglow Onset does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Evidence for a Correlation Between Gamma-Ray Burst Variability and the Optical Afterglow Onset, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for a Correlation Between Gamma-Ray Burst Variability and the Optical Afterglow Onset will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1394128