CV

Education

PhD in Physics, University of Oregon, 2025
BSc-MSc in Physics, NISER, HBNI, 2018

Skills

General: Bayesian statistics, MCMC, Cluster analysis, Digital signal processing, Machine learning, Normalizing flows
Machine learning: tensorflow, keras, scikit-learn
GPU acceleration: jax, cupy, CUDA
Miscellaneous: emcee, pandas, scipy, numpy, matplotlib, numpyro
Programming Languages: fluent in Python; working knowledge of C, C++, R, Java
Software: VS Code, Jupyter, PyCharm, Git, LaTeX, Mathematica, MATLAB
Astronomy: astropy, bilby, pycbc, gwpy
Physics: Gravitational-wave astronomy, General relativity, Quantum mechanics, Quantum field theory
Natural Languages: English, Hindi, Odia, Bengali, Gahaḷā

Work experience

2019-2025: Research Assistant at Institute of Fundamental Sciences, University of Oregon
- Supervisor: Ben Farr
- Hierarchical mergers of binary black holes in dynamical astrophysical environments: Built JAX-accelerated Bayesian population inference software to find evidence of hierarchical mergers of binary black holes in gravitational wave catalogs using the coagulation model for black hole mergers in dynamical astrophysical environments, such as globular clusters and active galactic nuclei’ accretion disks.
- Joint inference of astrophysical and noise parameters in gravitational wave data: Built high-dimensional Bayesian inference software for time-series and frequency-series data from gravitational-wave interferometers to estimate astrophysical signal models and spline-based detector noise models simultaneously. Found localized correlations between signal waveform and noise power spectral density.
- Clustering algorithms for significantly uncertain data: Built algorithms to cluster data with high uncertainty, such as data from gravitational-wave interferometers. Found probabilistic clusters and outliers in mass–spin space.
2019-2025: Teaching Assistant at Department of Physics, University of Oregon
- Graduate-level: Scientific computation (machine learning), Design of experiments (Bayesian statistics).
- Undergrad-level: Quantum mechanics, Astrophysics, Astronomy, Fourier analysis, Algebra-based physics, Calculus-based physics.
2018-2019: Research Fellow at NISER, HBNI
- Blackfolds in higher-dimensional gravity: Analyzed the stability of higher-dimensional equivalents of black holes. Verified through simulations that a perturbed black string asymptotically settles down to a black hole due to the Gregory–Laflamme instability.
2013-2018: Research Scholar at NISER, HBNI
- Membrane – gravity duality in a large number of dimensions: Demonstrated that black hole event horizons are analogous to hydrodynamic membranes.
- Analytical predictions of the mass function of halos: Analyzed the effects of varying dark matter halos’ mass functions on astronomical and cosmological observations.
- Magneto-optic Kerr effect: experiment design: Constructed theory for an experiment to use the magneto-optic Kerr effect to analyze magnetized surfaces.
2017: Research Scholar at Institute of Physics, HBNI
- Superstring theory: Tree-approximation scattering amplitudes: Studied the foundations of superstring theory, starting with bosonic strings, moving on to supersymmetry and gauge interactions, finishing with the evaluation of tree-level scattering amplitudes.
2016: Research Scholar at Centre for Excellence in Basic Sciences, University of Mumbai
- Quantum field theory: Decays of the Higgs boson: Studied relativistic quantum mechanics, quantum electrodynamics, Feynman diagrams, renormalization, and gauge field theories. Analyzed the radiation of gluon jets, the Coleman-Weinberg potential, and the decays of the Higgs boson.

Publications

All-sky Searches for Continuous Gravitational Waves from Isolated Neutron Stars in the Data from the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run

LVK 2026, All-sky Searches for Continuous Gravitational Waves from Isolated Neutron Stars in the Data from the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run, arXiv e-prints

GWTC-4.0: Tests of General Relativity. I. Overview and General Tests

LVK 2026, GWTC-4.0: Tests of General Relativity. I. Overview and General Tests, arXiv e-prints

GWTC-4.0: Tests of General Relativity. II. Parameterized Tests

LVK 2026, GWTC-4.0: Tests of General Relativity. II. Parameterized Tests, arXiv e-prints

GWTC-4.0: Tests of General Relativity. III. Tests of the Remnants

LVK 2026, GWTC-4.0: Tests of General Relativity. III. Tests of the Remnants, arXiv e-prints

Black Hole Spectroscopy and Tests of General Relativity with GW250114

LVK 2026, Black Hole Spectroscopy and Tests of General Relativity with GW250114, Physical Review Letters

Deep Search for Joint Sources of Gravitational Waves and High-Energy Neutrinos with IceCube During the Third Observing Run of LIGO and Virgo

LVK 2026, Deep Search for Joint Sources of Gravitational Waves and High-Energy Neutrinos with IceCube During the Third Observing Run of LIGO and Virgo, arXiv e-prints

GWTC-4.0: Searches for Gravitational-Wave Lensing Signatures

LVK 2025, GWTC-4.0: Searches for Gravitational-Wave Lensing Signatures, arXiv e-prints

Constraints on gravitational waves from the 2024 Vela pulsar glitch

LVK 2025, Constraints on gravitational waves from the 2024 Vela pulsar glitch, arXiv e-prints

GWTC-4.0: An Introduction to Version 4.0 of the Gravitational-Wave Transient Catalog

LVK 2025, GWTC-4.0: An Introduction to Version 4.0 of the Gravitational-Wave Transient Catalog, The Astrophysical Journal

All-sky search for short gravitational-wave bursts in the first part of the fourth LIGO-Virgo-KAGRA observing run

LVK 2025, All-sky search for short gravitational-wave bursts in the first part of the fourth LIGO-Virgo-KAGRA observing run, Physical Review D

All-sky search for continuous gravitational-wave signals from unknown neutron stars in binary systems in the first part of the fourth LIGO-Virgo-KAGRA observing run

LVK 2025, All-sky search for continuous gravitational-wave signals from unknown neutron stars in binary systems in the first part of the fourth LIGO-Virgo-KAGRA observing run, arXiv e-prints

Search for planetary-mass ultra-compact binaries using data from the first part of the LIGO–Virgo–KAGRA fourth observing run

LVK 2025, Search for planetary-mass ultra-compact binaries using data from the first part of the LIGO--Virgo--KAGRA fourth observing run, arXiv e-prints

GW231123: A Binary Black Hole Merger with Total Mass 190─265 M_⊙

LVK 2025, GW231123: A Binary Black Hole Merger with Total Mass 190─265 M_⊙, The Astrophysical Journal

GW241011 and GW241110: Exploring Binary Formation and Fundamental Physics with Asymmetric, High-spin Black Hole Coalescences

LVK 2025, GW241011 and GW241110: Exploring Binary Formation and Fundamental Physics with Asymmetric, High-spin Black Hole Coalescences, The Astrophysical Journal

Cosmological and High Energy Physics implications from gravitational-wave background searches in LIGO-Virgo-KAGRA’s O1-O4a runs

LVK 2025, Cosmological and High Energy Physics implications from gravitational-wave background searches in LIGO-Virgo-KAGRA's O1-O4a runs, arXiv e-prints

Direct multi-model dark-matter search with gravitational-wave interferometers using data from the first part of the fourth LIGO-Virgo-KAGRA observing run

LVK 2025, Direct multi-model dark-matter search with gravitational-wave interferometers using data from the first part of the fourth LIGO-Virgo-KAGRA observing run, arXiv e-prints

Directional Search for Persistent Gravitational Waves: Results from the First Part of LIGO-Virgo-KAGRA’s Fourth Observing Run

LVK 2025, Directional Search for Persistent Gravitational Waves: Results from the First Part of LIGO-Virgo-KAGRA's Fourth Observing Run, arXiv e-prints

Tests of general relativity with GWTC-3

LVK 2025, Tests of general relativity with GWTC-3, Physical Review D

Directed searches for gravitational waves from ultralight vector boson clouds around merger remnant and galactic black holes during the first part of the fourth LIGO-Virgo-KAGRA observing run

LVK 2025, Directed searches for gravitational waves from ultralight vector boson clouds around merger remnant and galactic black holes during the first part of the fourth LIGO-Virgo-KAGRA observing run, arXiv e-prints

GWTC-4.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation

LVK 2025, GWTC-4.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation, arXiv e-prints

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

LVK 2025, GW250114: Testing Hawking's Area Law and the Kerr Nature of Black Holes, Physical Review Letters

Upper Limits on the Isotropic Gravitational-Wave Background from the first part of LIGO, Virgo, and KAGRA’s fourth Observing Run

LVK 2025, Upper Limits on the Isotropic Gravitational-Wave Background from the first part of LIGO, Virgo, and KAGRA's fourth Observing Run, arXiv e-prints

GWTC-4.0: Population Properties of Merging Compact Binaries

LVK 2025, GWTC-4.0: Population Properties of Merging Compact Binaries, arXiv e-prints

GWTC-4.0: Updating the Gravitational-Wave Transient Catalog with Observations from the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run

LVK 2025, GWTC-4.0: Updating the Gravitational-Wave Transient Catalog with Observations from the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run, arXiv e-prints

GWTC-4.0: Methods for Identifying and Characterizing Gravitational-wave Transients

LVK 2025, GWTC-4.0: Methods for Identifying and Characterizing Gravitational-wave Transients, arXiv e-prints

Open Data from LIGO, Virgo, and KAGRA through the First Part of the Fourth Observing Run

LVK 2025, Open Data from LIGO, Virgo, and KAGRA through the First Part of the Fourth Observing Run, arXiv e-prints

All-sky search for long-duration gravitational-wave transients in the first part of the fourth LIGO-Virgo-KAGRA Observing run

LVK 2025, All-sky search for long-duration gravitational-wave transients in the first part of the fourth LIGO-Virgo-KAGRA Observing run, arXiv e-prints

Search for Gravitational Waves Emitted from SN 2023ixf

LVK 2025, Search for Gravitational Waves Emitted from SN 2023ixf, The Astrophysical Journal

Search for Continuous Gravitational Waves from Known Pulsars in the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run

LVK 2025, Search for Continuous Gravitational Waves from Known Pulsars in the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run, The Astrophysical Journal

Swift-BAT GUANO Follow-up of Gravitational-wave Triggers in the Third LIGO–Virgo–KAGRA Observing Run

LVK 2025, Swift-BAT GUANO Follow-up of Gravitational-wave Triggers in the Third LIGO–Virgo–KAGRA Observing Run, The Astrophysical Journal

Search for continuous gravitational waves from known pulsars in the first part of the fourth LIGO-Virgo-KAGRA observing run

LVK 2025, Search for continuous gravitational waves from known pulsars in the first part of the fourth LIGO-Virgo-KAGRA observing run, arXiv e-prints

A Search Using GEO600 for Gravitational Waves Coincident with Fast Radio Bursts from SGR 1935+2154

LVK 2024, A Search Using GEO600 for Gravitational Waves Coincident with Fast Radio Bursts from SGR 1935+2154, The Astrophysical Journal

Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo

LVK 2024, Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo, The Astrophysical Journal

Search for Gravitational-lensing Signatures in the Full Third Observing Run of the LIGO–Virgo Network

LVK 2024, Search for Gravitational-lensing Signatures in the Full Third Observing Run of the LIGO–Virgo Network, The Astrophysical Journal

Observation of Gravitational Waves from the Coalescence of a 2.5–4.5 M _⊙ Compact Object and a Neutron Star

LVK 2024, Observation of Gravitational Waves from the Coalescence of a 2.5–4.5 M _⊙ Compact Object and a Neutron Star, The Astrophysical Journal

Ultralight vector dark matter search using data from the KAGRA O3GK run

LVK 2024, Ultralight vector dark matter search using data from the KAGRA O3GK run, Physical Review D

Search for Gravitational-wave Transients Associated with Magnetar Bursts in Advanced LIGO and Advanced Virgo Data from the Third Observing Run

LVK 2024, Search for Gravitational-wave Transients Associated with Magnetar Bursts in Advanced LIGO and Advanced Virgo Data from the Third Observing Run, The Astrophysical Journal

A Joint Fermi-GBM and Swift-BAT Analysis of Gravitational-wave Candidates from the Third Gravitational-wave Observing Run

LVK 2024, A Joint Fermi-GBM and Swift-BAT Analysis of Gravitational-wave Candidates from the Third Gravitational-wave Observing Run, The Astrophysical Journal

GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run

LVK 2024, GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run, Physical Review D

Search for Gravitational Waves Associated with Fast Radio Bursts Detected by CHIME/FRB during the LIGO–Virgo Observing Run O3a

LVK 2023, Search for Gravitational Waves Associated with Fast Radio Bursts Detected by CHIME/FRB during the LIGO–Virgo Observing Run O3a, The Astrophysical Journal

Search for subsolar-mass black hole binaries in the second part of Advanced LIGO’s and Advanced Virgo’s third observing run

LVK 2023, Search for subsolar-mass black hole binaries in the second part of Advanced LIGO's and Advanced Virgo's third observing run, Monthly Notices of the Royal Astronomical Society

GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo during the Second Part of the Third Observing Run

LVK 2023, GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo during the Second Part of the Third Observing Run, Physical Review X

Open Data from the Third Observing Run of LIGO, Virgo, KAGRA, and GEO

LVK 2023, Open Data from the Third Observing Run of LIGO, Virgo, KAGRA, and GEO, The Astrophysical Journal Supplement Series

Constraints on the Cosmic Expansion History from GWTC–3

LVK 2023, Constraints on the Cosmic Expansion History from GWTC–3, The Astrophysical Journal

Population of Merging Compact Binaries Inferred Using Gravitational Waves through GWTC-3

LVK 2023, Population of Merging Compact Binaries Inferred Using Gravitational Waves through GWTC-3, Physical Review X

Model-based Cross-correlation Search for Gravitational Waves from the Low-mass X-Ray Binary Scorpius X-1 in LIGO O3 Data

LVK 2022, Model-based Cross-correlation Search for Gravitational Waves from the Low-mass X-Ray Binary Scorpius X-1 in LIGO O3 Data, The Astrophysical Journal

All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data

LVK 2022, All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data, Physical Review D

Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data

LVK 2022, Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data, Physical Review D

Searches for Gravitational Waves from Known Pulsars at Two Harmonics in the Second and Third LIGO-Virgo Observing Runs

LVK 2022, Searches for Gravitational Waves from Known Pulsars at Two Harmonics in the Second and Third LIGO-Virgo Observing Runs, The Astrophysical Journal

Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data

LVK 2022, Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data, Physical Review D

Search for Subsolar-Mass Binaries in the First Half of Advanced LIGO’s and Advanced Virgo’s Third Observing Run

LVK 2022, Search for Subsolar-Mass Binaries in the First Half of Advanced LIGO's and Advanced Virgo's Third Observing Run, Physical Review Letters

Narrowband Searches for Continuous and Long-duration Transient Gravitational Waves from Known Pulsars in the LIGO-Virgo Third Observing Run

LVK 2022, Narrowband Searches for Continuous and Long-duration Transient Gravitational Waves from Known Pulsars in the LIGO-Virgo Third Observing Run, The Astrophysical Journal

First joint observation by the underground gravitational-wave detector KAGRA with GEO 600

LVK 2022, First joint observation by the underground gravitational-wave detector KAGRA with GEO 600, Progress of Theoretical and Experimental Physics

All-sky, all-frequency directional search for persistent gravitational waves from Advanced LIGO’s and Advanced Virgo’s first three observing runs

LVK 2022, All-sky, all-frequency directional search for persistent gravitational waves from Advanced LIGO's and Advanced Virgo's first three observing runs, Physical Review D

All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data

LVK 2022, All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data, Physical Review D

Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift during the LIGO-Virgo Run O3b

LVK 2022, Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift during the LIGO-Virgo Run O3b, The Astrophysical Journal

Search of the early O3 LIGO data for continuous gravitational waves from the Cassiopeia A and Vela Jr. supernova remnants

LVK 2022, Search of the early O3 LIGO data for continuous gravitational waves from the Cassiopeia A and Vela Jr. supernova remnants, Physical Review D

Teaching

Teaching Assistant

Service and leadership

Vice-President, Graduate Student Council, Dept of Physics, U Oregon
PhD Admissions Committee, Dept of Physics, U Oregon
Graduate Support Group, Dept of Physics, U Oregon

Sangeet Paul

CV