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Burst H3751 summary
- Trigger time is
- UTC=20050509_224553
- GRB=GRB050509+81953
- Triggering instrument was WXM
- Trigger timescale was 5.12 seconds
- Trigger detected in 2-25 keV band
Evaluation GRB050509C
XRF. Very soft, no counts above 20 keV.
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Download ASCII table of Fregate Band A, B, C lightcurves
here.
The color of trigger H3751, defined by the ratio of
total counts in Fregate band C (30-400 keV) to band A (7-40 keV)
vs. band B (7-80 keV) to band A, overlaid on a the color-color
plot of all localized bursts detected to date. Note the separation
of XRFs, XRRs, and GRBs.
The signal to noise in Fregate band C (30-400 keV)
of trigger H3751 in relation to the S/N of band C
of other localized HETE triggers. We find empirically that
most XRFs are faint and soft: the fact that localized bursts
require a minimum S/N in the 2-25 keV band means that the
band C S/N should be low. We find a cutoff in the band
C S/N of 6.5 delineates the XRF/non-XRF population with
high reliability.
Burst is very soft, with no emission above 20 keV. Clearly an XRF.
Skymap for HETE trigger H3751
Link to
Jochen Greiner's web page on GRB050509C