Selected Publications

Sections

Research papers

Popular articles

Conference proceedings

Technical reports

Complete INSPIRE record

This is a curated publication list. It contains all papers on my INSPIRE profile with 20 or fewer authors, together with selected collaboration papers reflecting major milestones or direct involvement in the underlying analyses.

For the complete publication record, including the full set of collaboration papers, see my INSPIRE-HEP profile.

Research papers

2026

  1. Fast Bayesian Inference for Long-Duration Gravitational-Wave Signals in 3G detectors
    Anand S. Sengupta
    arXiv:2609.05375

  2. Stochastic template banks for GW searches using low-discrepancy sequences
    Tarun Kumar, Anand S. Sengupta
    arXiv:2607.18633

  3. IndIGO-D: Probing Compact Binary Coalescences in the Decihertz GW Band
    Abhishek Sharma, Divya Tahelyani, Anand S. Sengupta, Sanjit Mitra
    arXiv:2601.06956

  4. Rapid parameter estimation with the full symphony of compact binary mergers using a meshfree approximation
    Abhishek Sharma, Lalit Pathak, Soumen Roy, Anand S. Sengupta
    Phys.Rev.D 114, 044043 (2026) · arXiv:2508.04172 · DOI

  5. Probing missing physics from inspiralling compact binaries via time-frequency tracks
    Debtroy Das, Soumen Roy, Anand S. Sengupta, Cosimo Bambi
    Eur.Phys.J.C 86, 667 (2026) · arXiv:2507.21566 · DOI

2025

  1. Probing dark matter halo profiles with multiband observations of gravitational waves
    Divya Tahelyani, Arpan Bhattacharyya, Anand S. Sengupta
    Phys.Rev.D 111, 083041 (2025) · arXiv:2411.14063 · DOI

  2. Accelerated parameter estimation of supermassive black hole binaries in LISA using a meshfree approximation
    Abhishek Sharma, Anand S. Sengupta, Suvodip Mukherjee
    Phys.Rev.D 111, 042009 (2025) · arXiv:2409.14288 · DOI

2024

  1. Fast and faithful interpolation of numerical relativity surrogate waveforms using a meshfree approximation
    Lalit Pathak, Amit Reza, Anand S. Sengupta
    Phys.Rev.D 110, 064022 (2024) · arXiv:2403.19162 · DOI

  2. Pinpointing coalescing binary neutron star sources with the IGWN, including LIGO-Aundha
    Sachin R. Shukla, Lalit Pathak, Anand S. Sengupta
    Phys.Rev.D 109, 044051 (2024) · arXiv:2311.15695 · DOI

  3. Template bank to search for exotic gravitational wave signals from astrophysical compact binaries
    Abhishek Sharma, Soumen Roy, Anand S. Sengupta
    Phys.Rev.D 109, 124049 (2024) · arXiv:2311.03274 · DOI

  4. Prompt sky localization of compact binary sources using a meshfree approximation
    Lalit Pathak, Sanket Munishwar, Amit Reza, Anand S. Sengupta
    Phys.Rev.D 109, 024053 (2024) · arXiv:2309.07012 · DOI

2023

  1. Does the speed of gravitational waves depend on the source velocity?
    Rajes Ghosh, Sreejith Nair, Lalit Pathak, Sudipta Sarkar, Anand S. Sengupta
    Phys.Rev.D 108, 124017 (2023) · arXiv:2304.14820 · DOI

  2. Fast likelihood evaluation using meshfree approximations for reconstructing compact binary sources
    Lalit Pathak, Amit Reza, Anand S. Sengupta
    Phys.Rev.D 108, 064055 (2023) · arXiv:2210.02706 · DOI

  3. Beyond general relativity: Designing a template-based search for exotic gravitational wave signals
    Harsh Narola, Soumen Roy, Anand S. Sengupta
    Phys.Rev.D 107, 024017 (2023) · arXiv:2207.10410 · DOI

  4. GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo during the Second Part of the Third Observing Run
    KAGRA, VIRGO, LIGO Scientific
    Phys.Rev.X 13, 041039 (2023) · arXiv:2111.03606 · DOI
    Note: The IIT Gandhinagar group contributed efficient template banks used in the PyCBC broad and BBH analyses.

2022

  1. SPIIR online coherent pipeline to search for gravitational waves from compact binary coalescences
    Qi Chu, Manoj Kovalam, Linqing Wen, Teresa Slaven-Blair, Joel Bosveld, Yanbei Chen, Patrick Clearwater, Alex Codoreanu, Zhihui Du, Xiangyu Guo, Xiaoyang Guo, Kyungmin Kim, Tjonnie G.F. Li, Victor Oloworaran, Fiona Panther, Jade Powell, Anand S. Sengupta, Karl Wette, Xingjiang Zhu
    Phys.Rev.D 105, 024023 (2022) · arXiv:2011.06787 · DOI

2021

  1. Random projections in gravitational-wave searches from compact binaries II: efficient reconstruction of the detection statistic
    Amit Reza, Anirban Dasgupta, Anand S. Sengupta
    arXiv:2101.03226

  2. Unveiling the spectrum of inspiralling binary black holes
    Soumen Roy, Anand S. Sengupta, K.G. Arun
    Phys.Rev.D 103, 064012 (2021) · arXiv:1910.04565 · DOI

2020

  1. GW190814: Gravitational Waves from the Coalescence of a 23 Solar Mass Black Hole with a 2.6 Solar Mass Compact Object
    LIGO Scientific, Virgo
    Astrophys.J.Lett. 896, L44 (2020) · arXiv:2006.12611 · DOI
    Note: Direct IIT Gandhinagar involvement through optimized hybrid template banks used in the searches.

  2. GW190412: Observation of a Binary-Black-Hole Coalescence with Asymmetric Masses
    LIGO Scientific, Virgo
    Phys.Rev.D 102, 043015 (2020) · arXiv:2004.08342 · DOI
    Note: The IIT Gandhinagar group developed optimized hybrid template banks and contributed one of the analyses establishing evidence for higher-order modes.

  3. GW190425: Observation of a Compact Binary Coalescence with Total Mass \(\sim 3.4 M_{\odot}\)
    LIGO Scientific, Virgo
    Astrophys.J.Lett. 892, L3 (2020) · arXiv:2001.01761 · DOI
    Note: The IIT Gandhinagar group led the construction of optimized hybrid geometric-stochastic template banks used in the searches.

2019

  1. Random projections in gravitational wave searches of compact binaries
    Sumeet Kulkarni, Khun Sang Phukon, Amit Reza, Sukanta Bose, Anirban Dasgupta, Dilip Krishnaswamy, Anand S. Sengupta
    Phys.Rev.D 99, 101503 (2019) · arXiv:1801.04506 · DOI

  2. Effectual template banks for upcoming compact binary searches in Advanced-LIGO and Virgo data
    Soumen Roy, Anand S. Sengupta, Parameswaran Ajith
    Phys.Rev.D 99, 024048 (2019) · arXiv:1711.08743 · DOI

2017

  1. GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
    LIGO Scientific, Virgo
    Phys.Rev.Lett. 119, 161101 (2017) · arXiv:1710.05832 · DOI
    Note: First gravitational-wave observation of a binary-neutron-star inspiral.

  2. Hybrid geometric-random template-placement algorithm for gravitational wave searches from compact binary coalescences
    Soumen Roy, Anand S. Sengupta, Nilay Thakor
    Phys.Rev.D 95, 104045 (2017) · arXiv:1702.06771 · DOI

  1. The basic physics of the binary black hole merger GW150914
    LIGO Scientific, Virgo
    Annalen Phys. 529, 1600209 (2017) · arXiv:1608.01940 · DOI

2016

  1. Properties of the Binary Black Hole Merger GW150914
    LIGO Scientific, Virgo
    Phys.Rev.Lett. 116, 241102 (2016) · arXiv:1602.03840 · DOI

  2. GW150914: First results from the search for binary black hole coalescence with Advanced LIGO
    LIGO Scientific, Virgo
    Phys.Rev.D 93, 122003 (2016) · arXiv:1602.03839 · DOI

  3. Observing gravitational-wave transient GW150914 with minimal assumptions
    LIGO Scientific, Virgo
    Phys.Rev.D 93, 122004 (2016) · arXiv:1602.03843 · DOI

  4. Observation of Gravitational Waves from a Binary Black Hole Merger
    LIGO Scientific, Virgo
    Phys.Rev.Lett. 116, 061102 (2016) · arXiv:1602.03837 · DOI
    Note: Discovery paper for GW150914, the first direct detection of gravitational waves.

2015

  1. Advanced LIGO
    LIGO Scientific
    Class.Quant.Grav. 32, 074001 (2015) · arXiv:1411.4547 · DOI

2013

  1. Enhancing the sensitivity of the LIGO gravitational wave detector by using squeezed states of light
    LIGO Scientific
    Nature Photon. 7, 613 (2013) · arXiv:1310.0383 · DOI
  1. Searching for gravitational waves from binary coalescence
    S. Babak et al.
    Phys.Rev.D 87, 024033 (2013) · arXiv:1208.3491 · DOI

2011

  1. Search for gravitational waves from binary black hole inspiral, merger and ringdown
    LIGO Scientific, VIRGO
    Phys.Rev.D 83, 122005 (2011) · arXiv:1102.3781 · DOI
    Note: S5 high-mass binary-black-hole search; analysis led by Anand S. Sengupta.

2010

  1. LIGO-Virgo searches for gravitational waves from coalescing binaries: a status update
    Anand S. Sengupta
    J.Phys.Conf.Ser. 228, 012002 (2010) · arXiv:0911.2738 · DOI

  2. Search for gravitational-wave bursts associated with gamma-ray bursts using data from LIGO Science Run 5 and Virgo Science Run 1
    VIRGO
    Astrophys.J. 715, 1438 (2010) · arXiv:0908.3824 · DOI

2009

  1. An Upper Limit on the Stochastic Gravitational-Wave Background of Cosmological Origin
    LIGO Scientific, VIRGO
    Nature 460, 990 (2009) · arXiv:0910.5772 · DOI

  2. Search for gravitational wave ringdowns from perturbed black holes in LIGO S4 data
    LIGO Scientific
    Phys.Rev.D 80, 062001 (2009) · arXiv:0905.1654 · DOI

  3. Search for Gravitational Waves from Low Mass Binary Coalescences in the First Year of LIGO’s S5 Data
    LIGO Scientific
    Phys.Rev.D 79, 122001 (2009) · arXiv:0901.0302 · DOI

  4. LIGO: The Laser interferometer gravitational-wave observatory
    LIGO Scientific
    Rept.Prog.Phys. 72, 076901 (2009) · arXiv:0711.3041 · DOI

  5. CMB power spectrum estimation with non-circular beam and incomplete sky coverage
    Sanjit Mitra, Anand S. Sengupta, Subharthi Ray, Rajib Saha, Tarun Souradeep
    Mon.Not.Roy.Astron.Soc. 394, 1419 (2009) · arXiv:astro-ph/0702100 · DOI

2008

  1. A Geometric algorithm for efficient coincident detection of gravitational waves
    C.A.K. Robinson, B.S. Sathyaprakash, Anand S. Sengupta
    Phys.Rev.D 78, 062002 (2008) · arXiv:0804.4816 · DOI

  2. Search for gravitational waves associated with 39 gamma-ray bursts using data from the second, third, and fourth LIGO runs
    LIGO Scientific
    Phys.Rev.D 77, 062004 (2008) · arXiv:0709.0766 · DOI

  3. Search of S3 LIGO data for gravitational wave signals from spinning black hole and neutron star binary inspirals
    LIGO Scientific
    Phys.Rev.D 78, 042002 (2008) · arXiv:0712.2050 · DOI

  4. Implications for the Origin of GRB 070201 from LIGO Observations
    LIGO Scientific
    Astrophys.J. 681, 1419 (2008) · arXiv:0711.1163 · DOI

  5. Search for gravitational waves from binary inspirals in S3 and S4 LIGO data
    LIGO Scientific
    Phys.Rev.D 77, 062002 (2008) · arXiv:0704.3368 · DOI

  6. Relativistic anisotropic charged fluid spheres with varying cosmological constant
    Saibal Ray, Sumana Bhadra, Anand S. Sengupta
    Astrophys.Space Sci. 315, 341 (2008) · arXiv:gr-qc/0310133 · DOI

2007

  1. Binary black hole spectroscopy
    Chris Van Den Broeck, Anand S. Sengupta
    Class.Quant.Grav. 24, 1089 (2007) · arXiv:gr-qc/0610126 · DOI

  2. Phenomenology of amplitude-corrected post-Newtonian gravitational waveforms for compact binary inspiral. I. Signal-to-noise ratios
    Chris Van Den Broeck, Anand S. Sengupta
    Class.Quant.Grav. 24, 155 (2007) · arXiv:gr-qc/0607092 · DOI

2006

  1. Compact binary inspiral and the science potential of third-generation ground-based gravitational wave detectors
    Chris Van Den Broeck, Anand S. Sengupta
    , 2401 · arXiv:gr-qc/0612085 · DOI

  2. Non-Circular beam correction to the CMB power spectrum
    Tarun Souradeep, Sanjit Mitra, Anand Sengupta, Subharthi Ray, Rajib Saha
    New Astron.Rev. 50, 1030 (2006) · arXiv:astro-ph/0608505 · DOI

  3. Search for gravitational waves from binary black hole inspirals in LIGO data
    LIGO Scientific
    Phys.Rev.D 73, 062001 (2006) · arXiv:gr-qc/0509129 · DOI

2004

  1. CMB power spectrum estimation using non-circular beam
    Sanjit Mitra, Anand S. Sengupta, Tarun Souradeep
    Phys.Rev.D 70, 103002 (2004) · arXiv:astro-ph/0405406 · DOI

  2. Analysis of LIGO Data for Gravitational Waves from Binary Neutron Stars
    LIGO Scientific
    Phys.Rev.D 69, 122001 (2004) · arXiv:gr-qc/0308069 · DOI

2003

  1. A Faster implementation of the hierarchical search algorithm for detection of gravitational waves from inspiraling compact binaries
    Anand S. Sengupta, Sanjeev Dhurandhar, Albert Lazzarini
    Phys.Rev.D 67, 082004 (2003) · arXiv:gr-qc/0301025 · DOI

2002

  1. Extended hierarchical search (EHS) algorithm for detection of gravitational waves from inspiraling compact binaries
    Anand S. Sengupta, Sanjeev V. Dhurandhar, Albert Lazzarini, Tom Prince
    Class.Quant.Grav. 19, 1507 (2002) · arXiv:gr-qc/0109088 · DOI

Conference proceedings

Technical reports