Frequency Shift by Binary Microlensing System

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Sarbaz Golozary, Samaneh | 2021

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 54587 (04)
University: Sharif University of Technology
Department: Physics
Advisor(s): Rahvar, Sohrab
Abstract:
Gravitational microlensing with the binary lenses are one the tools for detection of exoplanets. Due to the degeneracy nature of the solutions for the observed light curves additional features such as parallax and finite-size effects help to break the degeneracy. Here in this work we introduce the application of frequency shift effect in the microlensing observations where for the single lens, it has been studied in [5] .In this work our purpose 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 detection extrasolar planets beter than before.
Keywords:
Frequency Shift ; Microlensing ; Extrasolar Planets ; Red Shift ; Spectroscopy ; Gravitational Microlensing

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