Samaneh Sarbaz

Department of Physics, Sharif University of Technology

Frequency shift in binary lensing system

Abstract: In the gravitational microlensing phenomenon, multiple responses are obtained for the parameters of the gravitational lens. There are many ways to solve this problem. One of the recent techniques proposed is by the use of source starlight spectroscopy, in which shifts in the absorption lines of the source star can be considered as the reason for the relative motion of the lens. In this research, our objective is to study the frequency shifts in binary lenses. Therefore, after reviewing the frequency shift in single gravitational lens systems, we will study this phenomenon in binary systems.

In binary lenses, which are mainly used to detect extrasolar planets, the problem of degeneracy is causing multiple responses, and we want to use this technique to detect extrasolar planets better than before.

 یکشنبه 3 مرداد 1400، ساعت 19:00

Sunday 25 July 2021 – 19:00 Tehran Time

اتاق سمینار مجازی –Virtual Seminar Room

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

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