32 citations · 38 across the 8 of their papers we have counts for
8 papers
The Effect of the Peculiar Motions of the Lens, Source and the Observer on the Gravitational Lensing Time Delay
Gihan Weerasekara, Thulsi Wickramasinghe, Chandana Jayaratne
An intervening galaxy acts as a gravitational lens and produces multiple images of a single source such as a remote galaxy. Galaxies have peculiar speeds in addition to the bulk mo…
How beaming of gravitational waves compares to the beaming of electromagnetic waves: impacts to gravitational wave detection
Andrew L. Miller, Thulsi Wickramasinghe
We focus on understanding the beaming of gravitational radiation from gamma ray bursts (GRBs) by approximating GRBs as linearly accelerated point masses. For accelerated point mass…
The Emission of Electromagnetic Radiation from Charges Accelerated by Gravitational Waves and its Astrophysical Implications
Mitchell Revalski, Will Rhodes, Thulsi Wickramasinghe
We provide calculations and theoretical arguments supporting the emission of electromagnetic radiation from charged particles accelerated by gravitational waves (GWs). These waves…
Interaction of Gravitational Waves with Charged Particles
Thulsi Wickramasinghe, Will Rhodes, Mitchell Revalski
It is shown here that a cloud of charged particles could in principle absorb energy from gravitational waves (GWs) incident upon it, resulting in wave attenuation. This could in tu…
Analytical Approach for the Determination of the Luminosity Distance in a Flat Universe with Dark Energy
T. Wickramasinghe, T. N. Ukwatta
Recent cosmological observations indicate that the present universe is flat and dark energy dominated. In such a universe, the calculation of the luminosity distance, d_L, involve…
Observed Bimodality of the Einstein Crossing Times of Galactic Microlensing Events
T. Wickramasinghe, M. Struble, J. Nieusma
The OGLE data for Einstein ring crossing times, , for microlensing events toward the galactic bulge are analyzed. The analysis shows that the crossing times are bimodal, i…
An Approximate Analytical Algorithm for Evaluating the Distances in a Dark Energy Dominated Universe
T. Wickramasinghe
The most recent cosmological observations indicate that the present universe is flat and vacuum dominated. In such a universe, the distance measurements are always difficult and in…
Detection of Gravitational Waves from Gravitationally Lensed Systems
T. Wickramasinghe, M. Benacquista
It is accepted that quasars are powered by supermassive black holes (SMBH) with masses in the range 10^6 - 10^9 solar masses in their cores. Occasionally, compact stars can plunge…