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Koustav Chandra

Koustav Chandra — Dr — Postdoc
Office: 307 Whitmore Laboratory
Address: 307 Whitmore Laboratory, State College, PA 16801
kbc5795@psu.edu
Koustav Chandra
Astronomy Physics Cosmic Explorer LIGO Black Holes Gravitational Waves Multimessenger Astrophysics IGC

I am a Postdoctoral Scholar in Professor Bangalore Sathyaprakash's research group, where my work centres around utilising gravitational wave data to understand the properties of compact binaries.

ORCID: 0000-0003-4750-5551

Publications
  1. Koustav Chandra, Archana Pai, Samson Leong, Juan Calderón Bustillo “Impact of Bayesian Priors on the Inferred Masses of Quasi-Circular Intermediate-Mass Black Hole Binaries.” (2023)
  2. Juan Calderón Bustillo, Samson Leong, Koustav Chandra “GW190412: measuring a black-hole recoil direction through higher-order gravitational-wave modes.” (2022)
  3. Koustav Chandra, Juan Calderón Bustillo, Archana Pai, I. Harry “First gravitational-wave search for intermediate-mass black hole mergers with higher-order harmonics.” Phys. Rev. D 106 12 (2022) doi:10.1103/PhysRevD.106.123003
  4. Rich Abbott, others “Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo.” Astron. Astrophys. 659 (2022) doi:10.1051/0004-6361/202141452
  5. Kritti Sharma, Koustav Chandra, Archana Pai “Fishing massive black hole binaries with THAMES.” (2022)
  6. Koustav Chandra, V. Villa-Ortega, T. Dent, C. McIsaac, Archana Pai, I. Harry, G. Davies, K. Soni “An optimized PyCBC search for gravitational waves from intermediate-mass black hole mergers.” Phys. Rev. D 104 (2021) doi:10.1103/PhysRevD.104.042004
  7. Koustav Chandra, V. Gayathri, Juan Bustillo, Archana Pai “Numerical relativity injection analysis of signals from generically spinning intermediate mass black hole binaries in Advanced LIGO data.” Phys. Rev. D 102 4 (2020) doi:10.1103/PhysRevD.102.044035
About our wordmark
Monica Rincon Ramirez

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

The wordmark symbolizes the scope of research at the IGC. The base represents quantum gravity, evoking the quantum geometrical picture from spinfoams and loop quantum gravity — approaches studied at the Center for Fundamental Theory. The middle shows galaxies embedded in a smooth surface characteristic of spacetime in general relativity and the larger physical scales studied at the Center for Theoretical and Observational Cosmology. The top curves to an extreme representing a supermassive black hole accompanied by an energetic jet, with a binary black hole pair nearby — the high-energy phenomena studied at the Center for Multimessenger Astrophysics.