Research
GW190425: Classifying BNS vs BBH Mergers and Constraining Asymmetric Dark Matter
Khadkikar, S.; Singh, D. - Physical Review D (2026)
GW190425 was detected by LIGO and Virgo in April 2019 with a total mass substantially higher than any known galactic double neutron star system. This raised immediate questions …
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Dark Matter
Neutron Stars
Gravitational Waves
Binary Classification
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Precise and Accurate Neutron Star Radius Measurements with Next-Generation Gravitational Wave Detectors
Khadkikar, S.; Gupta, I.; Kashyap, R.; Chandra, K.; Gamba, R.; Sathyaprakash, B. S. - Physical Review D (2025)
Next-generation gravitational wave detectors, Einstein Telescope and Cosmic Explorer, will observe thousands of binary neutron star mergers and offer unprecedented precision on …
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Neutron Stars
Equation of State
Next-Generation Detectors
Parameter Estimation
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Quasi-Stationary Sequences of Hyper-Massive Neutron Stars with Exotic Equations of State
Khadkikar, S.; Mangat, C. S.; Banik, S. - Journal of Astrophysics and Astronomy (2022)
When two neutron stars merge, the remnant can survive briefly as a rapidly rotating hyper-massive neutron star before collapsing into a black hole. How long it survives and what it …
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Neutron Stars
Equation of State
Post-Merger
Exotic Matter
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Maximum Mass of Compact Stars from Gravitational Wave Events with Finite-Temperature Equations of State
Khadkikar, S.; Raduta, A. R.; Oertel, M.; Sedrakian, A. - Physical Review C (2021)
The maximum mass of a neutron star is one of the most fundamental quantities in nuclear astrophysics. It marks the boundary between a neutron star and a black hole, and places …
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Neutron Stars
Maximum Mass
Equation of State
Finite Temperature
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