Speaker
Description
The direct detection of gravitational waves (GW) by groundbased
laser interferometric detectors, operating in the ~10Hz to a few kHz
frequency band, and electromagnetic (EM) follow-up of GW events have
added a new dimension to observational cosmology. A GW observatory
in the decihertz frequency band can open yet another significant window
to the universe, like observatories in various EM
bands have done in the past. A decihertz GW observatory promises
various interesting science cases which may not be meaningfully
pursuable otherwise. It can bring a
major boost to the number of EM follow up of binary mergers,
thereby significantly accelerating the process of precise estimation
of the Hubble constant and resolving
tensions in current cosmology. Perhaps most exotic of all, it may
also provide a relatively foreground-free window to observe the
primordial stochastic GW background
generated in the very early universe.
