Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apj...648.1117k&link_type=abstract
The Astrophysical Journal, Volume 648, Issue 2, pp. 1117-1124.
Astronomy and Astrophysics
Astronomy
11
Gamma Rays: Bursts
Scientific paper
The long burst GRB 050717 was observed simultaneously by the Burst Alert Telescope (BAT) on Swift and the Konus instrument on Wind. Significant hard to soft spectral evolution was seen. Early gamma-ray and X-ray emission was detected by both BAT and the X-Ray Telescope (XRT) on Swift. The XRT continued to observe the burst for 7.1 days and detect it for 1.4 days. The X-ray light curve showed a classic decay pattern; the afterglow was too faint for a jet break to be detected. No optical, infrared, or ultraviolet counterpart was discovered despite deep searches within 14 hr of the burst. Two particular features of the prompt emission make GRB 050717 a very unusual burst. First, the peak of the νF(ν) spectrum was observed to be 2401+781-568 keV for the main peak, which is the highest value of Epeak ever observed. Second, the spectral lag for GRB 050717 was determined to be 2.5+/-2.6 ms, consistent with zero and unusually short for a long burst. This lag measurement suggests that this burst has a high intrinsic luminosity and hence is at high redshift (z>2.7). Despite these unusual features, GRB 050717 exhibits the classic prompt and afterglow behavior of a gamma-ray burst.
Barthelmy Scott D.
Burrows David N.
Gehrels Neil
Golenetskii Sergey
Hurkett C.
No associations
LandOfFree
GRB 050717: A Long, Short-Lag, High-Peak Energy Burst Observed by Swift and Konus 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 GRB 050717: A Long, Short-Lag, High-Peak Energy Burst Observed by Swift and Konus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GRB 050717: A Long, Short-Lag, High-Peak Energy Burst Observed by Swift and Konus will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-995566