New Gamma-Ray Bursts Found in the Archival Data from the IBIS/ISGRI Telescope of the INTEGRAL Observatory
arXiv:2005.11606 · doi:10.1134/S1063773719100025
Abstract
A systematic search for cosmic gamma-ray bursts (GRBs) and other short hard X-ray events in the archival data from the IBIS/ISGRI telescope of the INTEGRAL observatory over 2003-2018 has been carried out. Seven previously unknown GRBs have been recorded in the telescope field of view; all of them have been localized with an accuracy < 2 arcmin. These events were not revealed by the INTEGRAL burst alert system (IBAS) designed for an automatic GRB search and alert. Four more such localized events missed by IBAS, but known previously, i.e., observed in other experiments, have been found. Eight hundred and eighty six GRBs outside the field of view that arrived at large angles to the IBIS/ISGRI axis have also been recorded. All of them were previously recorded in other experiments, primarily by the anticoincidence shield (ACS) of the SPI gamma-ray spectrometer onboard INTEGRAL, the PICsIT detector of the IBIS gamma-ray telescope, and the KONUS/WIND monitor. An order of magnitude more events without any confirmations in other experiments have been recorded. Both GRBs and solar flares or magnetospheric transient events can be among them. Catalogs with the basic parameters of confirmed and previously unknown GRBs recorded by IBIS/ISGRI have been compiled. The statistical distributions of bursts in various parameters have been constructed and investigated.
19 pages, 12 figures, 4 tables
References in corpus (16)
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A
- INTEGRAL Detection of the First Prompt Gamma-Ray Signal Coincident with the Gravitational Wave Event GW170817
- The ultra-long Gamma-Ray Burst 111209A: the collapse of a blue supergiant?
- The Konus-Wind catalog of gamma-ray bursts with known redshifts. I. Bursts detected in the triggered mode
- GRB170817A associated with GW170817: multifrequency observations and modeling of prompt gamma-ray emission
- The 1st INTEGRAL SPI-ACS Gamma-Ray Burst Catalogue
- Observation of the second LIGO/Virgo event connected with binary neutron star merger S190425z in the gamma-ray range
- Precursors of Short Gamma-Ray Bursts in the SPI-ACS/INTEGRAL Experiment
- The updated spectral catalogue of INTEGRAL Gamma-Ray Bursts
- Catalog of Short Gamma-Ray Transients Detected in the SPI/INTEGRAL Experiment
- Registration of the First Thermonuclear X-ray Burst from AX J1754.2-2754
- Hard X-ray Bursts Detected by the IBIS Telescope Onboard the INTEGRAL Observatory in 2003-2004
- Multiple X-ray bursts and the model of a spreading layer of accreting matter over the neutron star surface
- IGR J17445-2747 - yet another X-ray burster in the Galactic bulge
- Cosmic gamma-ray burst 060428C detected in the fields of view of the IBIS and SPI telescopes of the INTEGRAL observatory and its early afterglow