Archana Pai
Professor
Photograph: 
Phone: 
+91-22-2576-9380
Phone No Extn: 
9380
Email: 
archana@phy.iitb.ac.in
archanap@iitb.ac.in
Office: 

114, 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:
  • Human resource development in astronomy: An Indian perspective,J S Bagla, M. Datta, ...A. Pai..et.al, JAA, 46, 1 (2025), 1-9
  • Enhancing search pipelines for short gravitational-wave transients with Gaussian mixture modelling, Leigh Smith, Sayantan Ghosh, J Sun, V. Gayathri, Ik Siong Heng, Archana Pai, Phys. Rev. D, Volume 110, 083032  (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) 
  • 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) 
  • Unmasking noise transients masquerading as intermediate-mass black hole binaries, Sayantan Ghosh, Koustav Chandra and Archana Pai, Phys. Rev. D, Volume 109, 064015  (2024) 
  • Science with the Daksha: High Energy Transients Mission, V. Bhalerao, D. Sawant, Archana Pai,.. et al, Experimental Astron. 57, 23 (2024)
  • 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)
  • 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) 
  • 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)
  • 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)
  • 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)
  • 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)
  • 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)
  • 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)
  • 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. 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)
  2. 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)
  3. 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)
  4. 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)
  5. 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).
  6. 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.
  7. 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.
  8. GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence, LIGO Scientific and Virgo Collaborations (B.P. Abbott,....A. Pai,....et al.), Phys.Rev.Lett. 119 (2017) no.14, 141101 
  9. 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). 
  10. 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
  11. 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.
  12. 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
Research Category: 
Astronomy, Cosmology and Gravity (ACG)