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Probing the spin of compact objects with gravitational microlensing of gravitational waves
Gopalkrishna Prabhu, Uddeepta Deka, Sumanta Chakraborty +1
Propagating gravitational waves (GWs) can encounter a massive object (lens) whose gravitational radius is comparable to the wavelength of the GWs (wave-optics regime). The resultin…
Forecasting properties of detectable massive binary black hole mergers in the era of space based gravitational-wave detectors
Sourabh Magare, Abhinav Roy, Shasvath J. Kapadia +2
Gravitational waves (GWs) from massive black hole (MBH) mergers will provide a novel way to probe the high-redshift universe and are key to understanding galactic dynamics and evol…
What do gravitational-wave observations tell us about Luminous Red Novae?
Dhruv Jain, Shasvath J. Kapadia, Kuntal Misra +4
Luminous Red Novae (LRNe) have been argued to be related to the ejection of common envelopes (CEs) in binary star systems. Ejection of CEs leads to tightened stellar orbits capable…
Early warning for lensed gravitational wave counterparts from time delays of their host galaxies observed in the optical
Sourabh Magare, Anupreeta More, Shasvath J. Kapadia
Gravitational lensing of gravitational waves (GWs) can be leveraged to provide early-warning times of to before the merger of B…
Testing the nature of GW200105 by probing the frequency evolution of eccentricity
Avinash Tiwari, Sajad A. Bhat, Md Arif Shaikh +1
GW200105 is a compact binary coalescence (CBC) event, consisting of a neutron star and a black hole, observed in LIGO-Virgo-KAGRA's (LVK's) third observing run (O3). Recent reanaly…
Profiling Dark Matter Spikes with Gravitational Waves from Accelerated Binaries
Avinash Tiwari, Prolay Chanda, Shasvath J. Kapadia +3
Dark matter halos can develop a density spike, e.g., around a galactic supermassive black hole, with the profile determined both by the galaxy's formatio…