Speaker
Description
(pdf version attached)
Ever since the observation of GW170817 provided evidence for binary neutron star mergers as sources of gravitational waves and other transient emissions such as short gamma-ray
bursts, the development of electromagnetically informed gravitational-wave analysis pipelines
has gained relevance in the astrophysics community [2, 1, 3, 4]. In this talk, I will illustrate the
most recent implementation of PyGRB, a coherent gravitational-wave search that uses matched
filtering and targets the time and sky locations of electromagnetic transients, typically short
gamma-ray bursts. The coherent matched filtering implementation for a multidetector network will be shown in detail, highlighting differences with respect to typical all-sky coincident
searches. Finally, performance measurements and test runs will be shown as proof of concept
for its usage.
References
[1] I. W. Harry and S. Fairhurst. A coherent triggered search for single spin compact binary
coalescences in gravitational wave data. Class. Quant. Grav., 28:134008, 2011.
[2] Ian W. Harry and Stephen Fairhurst. A targeted coherent search for gravitational waves
from compact binary coalescences. Phys. Rev. D, 83:084002, 2011.
[3] A. R. Williamson, C. Biwer, S. Fairhurst, I. W. Harry, E. Macdonald, D. Macleod, and
V. Predoi. Improved methods for detecting gravitational waves associated with short
gamma-ray bursts. Phys. Rev. D, 90(12):122004, 2014.
[4] Andrew Robert Williamson. Gravitational waves with gamma-ray bursts. PhD thesis,
Cardiff U., Cardiff University, 2016.
