Dr. Vaishak Prasad πŸš€

Dr. Vaishak Prasad

(he/him)

Astrophysicist and Numerical Relativist

The Pennsylvania State University

Professional Summary

I am an Astrophysicist working to understand the beahaviour of Black Hole Horizons in dynamical situations, often in binary merger setting, their strong field gravitational effects and how they affect they affect the gravitational radiation we receive in our detectors, by Numerically solving Einstein’s equations of General Relativity using Supercomputers. I also research and develop novel accelerated techniques for gravitational wave inference, using a variety of tools, from singal processing, Bayesian Inference and Stochastic Sampling. I also study the quality and performance of gravitational waveform produced by different models that directly impact our ability to accurately discern the source properties.I enjoy find novel solutions to problems by writing codes are optimized and efficient.

Interests

Strong Gravity Astrophysics Numerical Relativity Gravitational Wave Data Analysis High Performance Computing
πŸ“š My Research

I am an astrophysicist attempting to unravel the mysteries of the universe by listening to the cosmos using gravitational waves. Black holes are one of the most mathematically beautiful, pure and symmetrical objects ever known to mankind. Yet they pose some of the biggest unsolved puzzles. I attempt to study the boundaries of the black holes regions in highly dynamical situations - like those in binary mergers - and learn about their causally hidden properties using gravitational radiation. I am also interested in the physical properties of purtutbed black holes - from Black Hole Spectroscopy, late time tails to spectral instabilities.

The origin and astrophysical distribution of black holes, the methods used to infer the source properties, and the use of computational tools to intelligently and efficiently dismantle the deepest mysteries of the cosmos have captivated me in this journey.

Please reach out to collaborate πŸ˜ƒ

Featured Publications

GW250114: Testing Hawking’s Area Law and the Kerr Nature of Black Holes

Area-law test and Kerr nature assessment for GW250114; Vaishak contributed to analysis/interpretation and ringdown model.

LIGO-Virgo-KAGRA Collaboration (Incl. Vaishak Prasad)
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Black Hole Spectroscopy and Tests of General Relativity with GW250114

Spectroscopy and GR tests on GW250114; Vaishak contributed to area law interpretation and ringdown model context.

LIGO-Virgo-KAGRA Collaboration (Incl. Vaishak Prasad)
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The Shear at the Common Dynamical Horizon in Binary Black Hole Mergers and its Imprint in their Gravitational Radiation

Connects shear dynamics at the common horizon to features in the emitted gravitational radiation.

Vaishak Prasad
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Tidal deformation of dynamical horizons in binary black hole mergers and its imprint on gravitational radiation

Quantifies tidal deformation of dynamical horizons and connects it to imprints on gravitational radiation.

Vaishak Prasad
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Recent Publications
(2025). A maximum entropy puzzle in quasi-circular binary mergers. In preparation.
(2025). Are black hole spins truly near-zero. In preparation.
(2025). Can we twist gravitational waveforms from planar eccentric binaries to emulate generic ones. In preparation.
Recent & Upcoming Talks

Introduction to stochastic sampling

Lecture and tutoring session on stochastic sampling in the NP3M Summer School.

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Science Traceability Matrix overview β€” Tests of General Relativity

Overview of the science traceability matrix (Tests of GR) for Cosmic Explorer.

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News from dynamical horizons in binary black hole mergers

Conference talk on dynamical horizons and their connections to gravitational-wave observables.

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Strong-field physics of dynamical horizons in binary black hole mergers

Invited seminar on strong-field physics of dynamical horizons and imprint in gravitational radiation.

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Applications of dynamical horizons in SpEC and SpECTRE

Lightning talk on dynamical-horizon applications and tooling in SpEC/SpECTRE.

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Recent News