Institute for Gravitation and the Cosmos | Arnab Dhani

Arnab Dhani - Graduate student - Graduate Student

Office: 317 Whitmore Laboratory

Address: 4575 Pollock Rd, State College, PA 16801

Email: aud371@psu.edu

Phone: +1 814 865 7533

I am a theoretical physicist who loves to play pool and camp in the woods. Perhaps, importantly, I model gravitational waves from compact binary mergers and infer signal properties from gravitational-wave data.

Publications

Ssohrab Borhanian, Arnab Dhani, Anuradha Gupta, K. Arun, B. Sathyaprakash, "Dark Sirens to Resolve the Hubble–Lemaître Tension." Astrophys. J. Lett. 905 2 (2020)

Arnab Dhani, "Importance of mirror modes in binary black hole ringdown waveform." Phys. Rev. D 103 10 (2021)

Arnab Dhani, B. Sathyaprakash, "Overtones, mirror modes, and mode-mixing in binary black hole mergers." (2021)

Eva Hackmann, Arnab Dhani, "The propagation delay in the timing of a pulsar orbiting a supermassive black hole." Gen. Rel. Grav. 51 3 (2019)

The IGC wordmark was created by Monica Rincon Ramirez, while she was a graduate student at the Institute for Gravitation and the Cosmos (IGC). Monica enjoys drawing new connections between fundamental theory and observations. Her graduate work includes specialized topics in general relativity, loop quantum gravity, and quantum fields in cosmological backgrounds. In particular, her thesis work focused on finding effective quantum corrections to gravitational phenomena from spinfoams, and applications to cosmology. She received her PhD in 2024.

The wordmark symbolizes the scope and variety of research at the IGC. The base of the image represents quantum gravity, evoking the quantum geometrical picture from spinfoams and loop quantum gravity. These are among the approaches to fundamental questions studied at the Center for Fundamental Theory. The middle of the image represents the Center for Theoretical and Observational Cosmology by galaxies embedded in a smooth surface, characteristic of spacetime in general relativity and the much larger physical scales studied in cosmology. Finally, at the top, the surface curves to an extreme, representing a supermassive black hole accompanied by an energetic jet. These elements depict an active galactic nucleus, inspired by Centaurus A. Just to the right, a pair of black holes approaches merger. This top portion of the wordmark represents the Center for Multimessenger Astrophysics, which specializes in the study of high-energy phenomena in the universe.