The Search for Fast Transients with CZTI
arXiv:2011.07067 · doi:10.1007/s12036-021-09714-6
Abstract
The Cadmium Zinc Telluride Imager on AstroSat has proven to be a very effective all-sky monitor in the hard X-ray regime, detecting over three hundred GRBs and putting highly competitive upper limits on X-ray emissions from gravitational wave sources and fast radio bursts. We present the algorithms used for searching for such transient sources in CZTI data, and for calculating upper limits in case of non-detections. We introduce CIFT: the CZTI Interface for Fast Transients, a framework used to streamline these processes. We present details of 88 new GRBs detected by this framework that were previously not detected in CZTI.
Accepted in the "AstroSat - 5 years" special issue of the Journal of Astrophysics and Astronomy; revised to add referee suggestions, results unchanged
References in corpus (6)
- The NumPy array: a structure for efficient numerical computation
- GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
- INTEGRAL discovery of a burst with associated radio emission from the magnetar SGR 1935+2154
- AstroSat CZT Imager observations of GRB 151006A: timing, spectroscopy, and polarisation study
- The AstroSat Mass Model: Imaging and Flux studies of off-axis sources with CZTI
- A generalized event selection algorithm for AstroSat CZT Imager data