Zeinab Kalantari

Department of Physics, Sharif University of Technology

Imprints of Gravitational Microlensing on the Light Curve of Gamma-Ray Bursts

Abstract: Gamma-ray bursts (GRBs) are one of the most luminous and prolific high-energy transients that have been observed since their discovery in 1963. The theoretical investigations of gravitational lensing of GRBs have been carried out in the past half-century. In this talk, I will briefly review of Gamma_Ray Bursts (GRBs) detections and GRBs progenitors. Next, I will give a general overview of gravitational microlensing and its observable signature on a GRB light curve for a point mass model of lens. Then, I will concentrate on the Autocorrelation method and its efficiency in finding microlensed candidates. Finally, I will highlight the results of our recent probe in the Fermi/GBM catalog and the estimation of the dark matter density parameter in the form of black holes in the Universe.

یکشنبه 26 اردیبهشت 1400، ساعت 15:00

Sunday 16 May 2021 – 15:00 Tehran Time

اتاق سمینار مجازی –Virtual Seminar Room

https://vc.sharif.edu/ch/cosmology

گزینه ورود به صورت مهمان – Enter as a Guest