| Name: | Ankur Barsode |
| Affiliation: | ICTS-TIFR |
| Conference ID : | ASI2024_836 |
| Title : | Constraining compact dark matter using the non-observation of strong lensing of gravitational waves |
| Authors : | Ankur Barsode1, Shasvath Kapadia2, Ajith Parameswaran1 |
| Authors Affiliation: | 1 International Center for Theoretical Sciences, Bangalore - 560089, India
2 Inter-University Center for Astronomy and Astrophysics, Pune - 411007, India |
| Mode of Presentation: | Poster |
| Abstract Category : | Galaxies and Cosmology |
| Abstract : | Massive Astrophysical Compact Halo Objects (MACHOs) are low luminosity objects that may constitute a fraction of dark matter. If they lie close to the line of sight to a compact binary merger, it can lead to gravitational lensing of gravitational waves. Since there has been no evidence of lensing observed in LIGO-Virgo events so far, we can constrain the fraction of dark matter in MACHOs. While constraints on abundance of MACHOs of mass between 10^2-10^5 Msun have previously been obtained using the non-observation of wave optics effects due to lensing, here we put constraints on higher mass MACHOs using the non-observation of strong lensing of GWs. |
