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

229-J, Second Floor

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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
Selected Publications: 
  1. 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)
  2. 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)
  3. 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)
  4. Astrophysical signal consistency test adapted for gravitational-wave transient searches, V. Gayathri, P. Bacon, A. Pai, E. Chassande-Mottin, F. Salemi, G. Vedovato, Phys. Rev. D 100, 124022 (2019).
  5. Driving unmodeled gravitational-wave transient searches using astrophysical information, P Bacon, V. Gayathri, E. Chassande-Mottin, A. Pai, F. Salemi, G. Vedovato, Phys. Rev. D 98, 024028 (2018).
  6. Exploring Short-GRB afterglow parameter space for observations in coincidence with gravitational waves, M Saleem, L Resmi, K Misra, A Pai, KG Arun, Monthly Notices of the Royal Astronomical Society 474 (4), 5340-5350, (2018).
  7. Rates of Short-GRB afterglows in association with Binary Neutron Star mergers M Saleem, A Pai, K Misra, L Resmi, KG Arun, Monthly Notices of the Royal Astronomical Society 475 (1), 699-707 (2018).
  8. A stochastic template bank for precessing neutron star-black hole inspiral events, N. Indik, K. Haris, Tito Dal Canton, H. Fehrmann, B. Krishnan, A. Lundgren A. Nielson and Archana Pai, Phys. Rev. D 95, 064056 (2017).
  9. Performance comparison of multi-detector detection statistics in targeted compact binary coalescence GW search, K. Haris and Archana Pai, Phys. Rev. D. 96, 102002 (2017).
  10. Study of statistical properties of hybrid statistic in coherent multidetector compact binary coalescences search, K. Haris, Archana Pai, Phys. Rev. D. 93 102002 (2016).
  11. Synergy of short gamma ray burst and gravitational wave observations: Constraining the inclination angle of the binary and possible implications for off-axis GRBs, K.G. Arun, Hideyuki Tagoshi, Archana Pai, Chandra Kant Mishra, Phys. Rev. D. 90, 022003 (2014)
  12. Parameter estimation of neutron star-black hole binaries using an advanced gravitational-wave detector network: Effects of the full post-Newtonian waveform Hideyuki Tagoshi, Chandra Kant Mishra, Archana Pai, K. G. Arun, Phys. Rev. D 90, 024053 (2014) 
  13.  Synthetic streams in a Gravitational Wave inspiral search with a multi-detector network K. Haris, Archana Pai, Phys. Rev D 90, 022003 (2014).
  14.  Singular value decomposition in parametrised tests of post-Newtonian theory, Archana Pai, K. G. Arun, Class.Quant.Grav. 30 (2013), 02501
  15.  Best network chirplet-chain: near-optimal coherent detection of unmodeled gravitational wave chirps with a network of detectors, Archana Pai, Eric Chassande-Mottin, and Olivier Rabaste, Phys. Rev. D 77, 062005 (2008)
  16.  Interferometers for Displacement-Noise-Free Gravitational-Wave Detection, Yanbei Chen, Archana Pai, Kentaro Somiya, Seiji Kawamura, Shuichi Sato, Keiko Kokeyama, Robert L. Ward,  Phys. Rev. Lett. 97, 151103 (2006)
  17. Discrete-time and frequency Wigner-Ville distribution: aliasing and Moyal's formula,  Eric Chassande-Mottin, Archana Pai, IEEE Trans. Signal Process. Letters., vol 12, No. 7 (2005).
  18. Optimising the directional sensitivity of LISA, K. Rajesh Nayak, S. V. Dhurandhar, A. Pai, J-Y. Vinet, Phys.Rev. D 68, 122001 (2003)
  19.  Improving the Sensitivity of LISA, K. Rajesh Nayak, A. Pai, S. V. Dhurandhar, J-Y. Vinet, Class. Quant. Grav. 20, 1217 (2003)
  20.  A data-analysis strategy for detecting gravitational-wave signals from inspiraling compact binaries with a network of laser-interferometric detectors, A. Pai , S. V. Dhurandhar and S. Bose, Phys. Rev. D 64, 042004 (2001);
  21. Radiation pressure induced instabilities in laser interferometric detectors of gravitational waves, A. Pai, S. V. Dhurandhar, P. Hellow, J-Y Vinet, Eur. Phys. J. D 8, 333 (2000); 
Selected Publications as a member of LIGO Scientific collaboration:
  1. 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)
  2. 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)
  3. 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).
  4. 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.
  5. 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.
  6. 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 
  7. GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2, The LIGO Scientific Collaboration and Virgo Collaborations (B.P. Abbott,...A. Pai,....et al.)Phys. Rev. Lett. 118, 221101 (2017)
  8. Binary Black Hole Mergers in the first Advanced LIGO Observing Run, The LIGO Scientific Collab- oration and Virgo Collaborations (B.P. Abbott,...A.Pai,.... et al.). Phys. Rev. X 6, 041015 (2016). 
  9. GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence The LIGO Scientific and Virgo Collaborations (B.P. Abbott,...A. Pai,...et al.). Phys. Rev. Lett. 116 (2016) no. 24, 241103.
  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 (2016) 6, 061102. 
For the up to date publication list, please visit: Google Scholar, INSPIRE HEP Search