A new way of searching for transients: the ADWO method and its results
December 12, 2017
With the detection of gravitational wave emissions from from merging
compact objects, it is now more important than ever to effectively mine the
data-set of gamma-satellites for non-triggered, short-duration transients.
Hence we developed a new method called the Automatized Detector Weight
Optimization (ADWO), applicable for space-borne detectors such as Fermi's GBM
and RHESSI's Ge detectors. Provided that the trigger time of an astrophysical event is
well known (as in the case of a gravitational wave detection) but the detector
response matrix is uncertain, ADWO combines the data of all detectors and
energy channels to provide the best signal-to-noise ratio. We used ADWO to
successfully identify any potential electromagnetic counterpart of
gravitational wave events, as well as to detect previously un-triggered
short-duration GRBs in the data-sets.
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