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Professor

Archana Pai

Phone: +91-22-2576-9380

Phone No Extn: 9380

Office: 14, First Floor, Physics Department

Research Interests:

  • Astrophysical gravitational-wave transient search in LIGO-Virgo network
  • Parameter estimation of compact binaries with black-holes
  • Test of General Relativity with gravitational-wave observations
  • Multimessenger astronomy. Brief Curriculum Vitae 

Selected Publications:

Recent short author publications:

  1. 2025

    Improving the detection significance of gravitational wave transient searches with convolutional neural network models, 

    Johann Fernandes, Archana Pai, and Koustav Chandra

    Phys. Rev. D, 112, 083043 (2025)

  2. 2025

    Leveraging cross-detector parameter consistency measures to enhance senstivities of gravitational wave detectors,

    Sayantan Ghosh, Leigh Smith, Jiyoon Sun, Archana Pai, Ik Siong Heng, V. Gayathri

    Phys. Rev. D, 112, 063026 (2025)

  3. 2025

    Human resource development in astronomy: An Indian perspective, 

    J S Bagla, M. Datta, ...A. Pai..et.al, 

    JAA, 46, 1 (2025), 1-9

  4. 2024

    Enhancing search pipelines for short gravitational-wave transients with Gaussian mixture modelling, 

    Leigh Smith, Sayantan GhoshJ Sun, V. Gayathri, Ik Siong Heng, Archana Pai, 

    Phys. Rev. D, Volume 110, 083032  (2024)

  5. 2024

    Probing eccentric higher order modes through effective chirp mass model, 

    Ravikiran Hegde, Nirban Bose and Archana Pai, 

    Phys. Rev. D, Volume 110, 044026  (2024)

  6. 2024

    Impact of Bayesian Priors on the Inferred Masses of Quasi-Circular Intermediate-Mass Black Hole Binaries, 

    Koustav Chandra, Archana Pai, Samson H. W. Leong and Juan Calderon Bustillo, 

    Phys. Rev. D, Volume 109, 104031  (2024)

  7. 2024

    Unmasking noise transients masquerading as intermediate-mass black hole binaries, 

    Sayantan Ghosh, Koustav Chandra and Archana Pai, 

    Phys. Rev. D, Volume 109, 064015  (2024)

  8. 2024

    Science with the Daksha: High Energy Transients Mission, 

    V. Bhalerao, D. Sawant, Archana Pai,.. et al

    Experimental Astron. 57, 23 (2024)

  9. 2023

    Searching for massive black hole binaries with a transfer learning algorithm, 

    Kritti Sharma, Koustav Chandra and Archana Pai

    Phys. Rev. D, Volume 108, 124061 (2023)

  10. 2022

    First gravitational-wave search for intermediate-mass black hole mergers with higher order harmonics

    Koustav Chandra, Juan Calderon Bustillo, Archana Pai and Ian Harry, 

    Phys. Rev. D 108, 123003 (2022)

  11. 2022

    Utilizing Gaussian mixture modelling in all-sky search for short duration gravitational wave burst, 

    Dixeena Lopez, V. Gayathri, Archana Pai, Ik Siong Heng, C. Messenger, S. K. Gupta, 

    Phys. Rev. D 105, 063024 (2022)

  12. 2021

    Effective chirp mass in the inspiral frequency evolution of the non-spinning eccentric compact binary, 

    Nirban Bose and Archana Pai,

    Phys. Rev. D. 104, 124021 (2021)

  13. 2021

    Science Case of LIGO-India, 

    M. Saleem, J. Rana, V. Gayathri, A. Vijaykumar, S. Goyal, S. Sachdev, J. Suresh, S. Sudhagar, A. Mukherjee, G. Gaur, B. Sathyaprakash, A. Pai, R. Adhikari, P. Ajith, S. bose, 

    Class. Quan. Grav. 39, 2, (2021)

  14. 2021

    Optimized PyCBC search for gravitational waves from intermediate-mass black hole mergers, 

    K. Chandra, V. Villa-Ortega, T. Dent, C. Mclsaac, Archana Pai, I. W. Harry, G. S. Cabourne Davis, and K. Soni, 

    Phys. Rev. D 104, 042004 (2021)

  15. 2020

    Chirp mass based glitch identification in the long duration transient, 

    N. Bose, Archana Pai, K. Chandra and V. Gayathri,

    Phys. Rev. D 102, 084034 (2020)

  16. 2020

    Numerical Relativity Injection Analysis of spinning binary black-hole signals in Advanced LIGO data, 

    Koustav Chandra, V. Gayathri, Juan Calderon-Bustillo, Archana Pai, 

    Phys. Rev. D 102, 044035 (2020)

  17. 2020

    Enhancing the sensitivity of transient gravitational-wave searches with Gaussian Mixure Models, 

    V. Gayathri, Dixeena Lopez, R. S. Pranjal, Ik Siong Heng, Archana Pai, Chris Messenger

    Phys. Rev. D 102, 104023 (2020)

Selected Publications as a member of LIGO Scientific collaboration:

  1. 2025

    GW231123: A binary black hole merger with total mass 190-265 Msun, 

    A. G. Abac,... A. Pai, ...et. al, 

    ApJL. 993 (2025) L25

  2. 2025

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

    A. G. Abac,... A. Pai, ...et. al, 

    Phys. Rev. D 112, 10, 102005 (2025)

  3. 2024

    Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo Scientific, and KAGRA collaborations,

    A. G. Abac,... A. Pai, ...et. al, 

    ApJ, 973, 132 (2024)

  4. 2022

    Search for intermediate-mass black hole binaries in the third observing run of the Advanced LIGO and Advanced Virgo,

    LIGO Scientific and Virgo Collaborations (B.P. Abbott ,... A. Pai,....et al.),

    A&A 659, A84 (2022)

  5. 2020

    GW190521: A Binary Black Hole Merger with a Total Mass of 150 M, 

    LIGO Scientific and Virgo Collaborations (R. Abbott ,... A. Pai,....et al.),

    Phys. Rev. Lett. 125, 101102 (2020)

  6. 2020

    Properties and Astrophysical Implications of the 150 M Binary Black Hole Merger GW190521, 

    LIGO Scientific and Virgo Collaborations (R. Abbott ,... A. Pai,....et al.), 

    Astrophysical Journal Letters, Volume 900, Issue 1 (2020)

  7. 2019

    Search for intermediate-mass black hole binaries in the first and second observing runs of the Advanced LIGO and Virgo network, 

    LIGO Scientific and Virgo Collaborations (B.P. Abbott ,... A. Pai,....et al.), 

    Phys. Rev. D 100, 064064 (2019).

  8. 2017

    Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A, 

    LIGO Scientific and Virgo and Fermi-GBM and INTEGRAL Collaborations (B.P. Abbott,...A. Pai...et al.), 

    Astrophys.J. 848 (2017) no.2, L13.

  9. 2017

    GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral, 

    LIGO Scientific and Virgo Collaborations (B.P. Abbott, .... A. Pai,...et al.), 

    Phys.Rev.Lett. 119 (2017) no.16, 161101.

  10. 2016

    Binary Black Hole Mergers in the first Advanced LIGO Observing Run, 

    The LIGO Scientific Collaboration and Virgo Collaborations (B.P. Abbott,...A.Pai,.... et al.). 

    Phys. Rev. X 6, 041015 (2016).

  11. 2017

    The basic physics of the binary black hole merger GW150914,

    The LIGO Scientific and Virgo Collaborations (B.P. Abbott,...A. Pai,..... et al.). 

    Annalen der Physik Volume 529, Issue 1-2, January 2017, 1600209

  12. 2016

    Tests of general relativity with GW150914, 

    The LIGO Scientific and Virgo Collaborations (B.P. Abbott,...A. Pai,..... et al.). Feb 11, 2016. 

    Phys.Rev.Lett. 116 (2016) no.22, 221101.

  13. 2016

    Observation of Gravitational Waves from a Binary Black Hole Merger, 

    The LIGO Scientific and Virgo Collaborations (B.P. Abbott.....A. Pai,...et al.). 

    Phys.Rev.Lett.116, 6 061102 (2016)

For the up to date publication list, please visit: Google Scholar, INSPIRE HEP Search