Previous abstract Next abstract
Session 43 - Gamma-ray Burst Counterparts and Afterglows.
Display session, Tuesday, June 09
The detection of gamma ray bursts (GRBs) and other transients with BATSE is controlled by a real-time burst detection (or ``trigger'') system running onboard the spacecraft. Over 6500 transients have activated the onboard burst trigger during the >7 years of the mission, including over 2100 GRBs. We have searched 6 years of archival continuous data from BATSE to identify transients that did not\/ activate the onboard burst trigger. Examples of these ``non-triggered'' events include faint GRBs, solar flares, activity from soft gamma repeaters (SGRs), and bursts and flares from X-ray binaries. We present preliminary results regarding the non-triggered GRBs. Our search is sensitive to GRBs that have peak fluxes a factor of \sim 2 lower than those detected by the onboard burst trigger. Our catalog of non-triggered\/ GRBs will extend the number of gamma ray bursts detected with BATSE by 30 to 40%.
Program listing for Tuesday