Colloquium: Galaxy-based gravitational wave observatory and its promises
Guest Presenter
A. Gopakumar
TIFR, Mumbai, India
Chair, Indian Pulsar Timing Array
Abstract
Maturing pulsar timing arrays monitor millisecond pulsars which can be converted into `Einstein clocks' to search for perturbations due to gravitational waves at nanohertz frequencies. Very recent independent and coordinated investigations by the established Pulsar Timing Array collaborations strongly indicate that the universe is humming with gravitational radiation — a very low-frequency rumble that rhythmically...