T90 as a Measurment of the Duration of GRBs

Details T90 as a Measurment of the Duration of GRBs T90 as a Measurment of the Duration of GRBs

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...186.5301k&link_type=abstract

American Astronomical Society, 186th AAS Meeting, #53.01; Bulletin of the American Astronomical Society, Vol. 27, p.886

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The measurement of the duration of high energy transients has historically been difficult. Duration measurements vary between different instruments and are often subjective. This has particularly been a problem in the case of gamma-ray bursts (grbs), where data have been collected with a multitude of spacecraft. The parameters T90 and T50 have been recently introduced by the BATSE team as measures of the duration of GRBs. T90 is defined as the time interval over which 90% of the total background-subtracted counts are observed, with the interval starting when 5% of the total counts have been observed. T50 is similarly defined, with the interval starting when 25% of the total counts have been observed. We present here a description of the method of measuring T90 and T50. We use simulated, as well as observed, time profiles to address some of the possible systematic effects affecting individual T90 (T50) measurements. We will briefly discuss the impact of systematic effects on the T90 (T50) distributions for the grbs observed with BATSE.

Affiliated with

Also associated with

No associations

Rating

T90 as a Measurment of the Duration of GRBs 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 T90 as a Measurment of the Duration of GRBs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and T90 as a Measurment of the Duration of GRBs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1057772