Speaker
Description
The worldwide network of gravitational-wave (GW) detectors, comprised of the Advanced LIGO, Advanced Virgo, and KAGRA detectors has been increasing in sensitivity, range, and hence quantity and quality of detected GW signals from compact binary coalescences.
We present the compact binary signals observed and included in the GW Transient Catalog 4 (GWTC-4), i.e. up to and including the first part of the fourth observing run of the detectors (O4a).
We estimate the source properties, and provide new insight into compact objects in binaries.
The most confident signals allow us to perform ever-more sensitive tests of general relativity (GR) in the dynamical and strong-field regime of gravity.
We present the results of a suite of tests of GR, and discuss the both the compatibility, and what we learn from any discrepancies.
