Now that detection of gravitational wave signals from the coalescence extra-galactic compact binary star mergers has become nearly routine, it is intriguing to consider other potential signatures. Here we examine prospects for discovery continuous waves fast-spinning neutron stars in our own galaxy and more exotic sources. Potential continuous-wave sources are reviewed, search methodologies res...

We study the gravitational time delay in ray propagation due to rotating masses in the linear approximation of general relativity. Simple expressions are given for the gravitomagnetic time delay that occurs when rays of radiation cross a slowly rotating shell, equation (14), and propagate in the field of a distant rotating source, equation (16). Moreover, we calculate the local gravitational ti...

A large class of string-cosmology backgrounds leads to a spectrum of relic stochastic gravitational waves, strongly tilted towards high frequencies, and characterized by two basic parameters of the cosmological model. We estimate the required sensitivity for detection of the predicted gravitational radiation and show that a region of our parameter space is within reach for some of the planned g...

Gravitational waves are predicted by Einstein’s general relativity. They are time dependent solutions of the Einstein field equations which radiate or transport energy. Although they have not been detected yet, the existence of gravitational waves has been proved indirectly from observations of the pulsar PSR 1913+16. This rapidly rotating binary system should emit gravitational radiation, henc...