Abstract Details

Name: Soummyadip Basak
Affiliation: ICTS-TIFR, Bangalore
Conference ID: ASI2021_295
Title : Constraining The Fraction of Compact Dark Matter Using Gravitational Lensing of Gravitational Waves
Authors and Co-Authors : Soummyadip Basak (International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore) Apratim Ganguly (International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore) Haris M K (Nikhef, Amsterdam, Netherlands) Shasvath Kapadia (International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore) Ajit Kumar Mehta (Max Planck Institute for Gravitational Physics, Potsdam, Germany) P Ajith (International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore)
Abstract Type : Poster
Abstract Category : General Relativity and Cosmology
Abstract : Massive halo compact astrophysical objects (MACHOs) are a potential candidate of dark matter, the presence of which in the interstellar medium can cause deflection of gravitational waves (GWs), a phenomenon called gravitational lensing. If we do not find any lensing signature in the LIGO-Virgo data of gravitational waves, then we can put an upper cut-off on their abundance in a certain mass range (10-10^5 solar mass). We use Bayesian analysis which helps us determine the lensing signature of GWs and the absence of which helps us constrain the upper limit of the MACHOs.