Evidence for a long duration component in the prompt emission of short Gamma-Ray Bursts detected with BeppoSAX
arXiv:astro-ph/0504199 · doi:10.1086/430759
Abstract
A statistical study on the light curves of all the short Gamma-Ray Bursts detected with the Gamma Ray Burst Monitor (GRBM) aboard BeppoSAX is reported. Evidence for a very weak and long duration component associated with these events in the two 1 s counters of the GRBM (40-700 keV and >100 keV) is found. It starts a few tens of seconds before the burst and continues for about 30 s after the burst. The overall hardness of this component is comparable with that of the event itself. The detection of a signal before the onset time and the similar hardness are consistent with an interpretation of the long duration component in terms of prompt emission associated with short GRBs.
arXiv comment12 pages, 6 figures, accepted for publication in ApJL
References in corpus (10)
- Gamma-Ray Bursts: Progress, Problems & Prospects
- Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE
- The spectra of short Gamma-Ray Bursts
- BATSE Observations of Gamma-Ray Burst Tails
- A Unified Model of Short and Long Gamma-Ray Bursts, X-Ray Rich Gamma-Ray Bursts, and X-Ray Flashes
- Possible detection of hard X-ray afterglows of short gamma-ray bursts
- Evidence for an Early High-Energy Afterglow Observed with BATSE from GRB980923
- In-flight performances of the BeppoSAX Gamma-Ray Burst Monitor
- Observational constraints on the afterglow of GRB 020531
- A Possible Origin of Bimodal Distribution of Gamma-Ray Bursts
Cited by in corpus (14)
- The Progenitors of Short Gamma-Ray Bursts
- Time-Dependent Models of Accretion Disks Formed from Compact Object Mergers
- Neutrino-dominated accretion flows as the central engine of gamma-ray bursts
- The Ep,i - Eiso correlation: type I gamma-ray bursts and the new classification method
- Model of extended emission of short Gamma-ray Bursts
- Gamma Ray Bursts with Extended Emission Observed with BATSE
- Catalog of Short Gamma-Ray Transients Detected in the SPI/INTEGRAL Experiment
- Extended Emission from Short Gamma-Ray Bursts Detected with SPI-ACS/INTEGRAL
- The dark matter halos of the bluest low surface brightness galaxies
- A search for gamma-ray prompt emission associated with the Lorimer Burst FRB010724
- Hard X-ray/Soft gamma-ray experiments and missions: overview and prospects
- Astrophysics in 2005
- Properties of jet and surrounding material of GW/GRB~170817A
- Shared Properties of Merger-driven Long-duration Gamma-Ray Bursts