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B.Tech Seminar Report

on

A Study of a model Cosmology

Submitted for the partial fulfillment of the requirements

for the degree of

Bachelor of Technology

by

More Surhud Shrikant

01026020

under the guidance of

Prof. Urjit A. Yajnik

(Department of Physics)

Department of Physics

Indian Institute of Technology

Bombay

November 17, 2003

Abstract:

Recent advances in Cosmology have taken us closer to understand our Universe better. We study preliminary General relativity and its application to Cosmology. Initially we develop the background for the Friedmann models and analyse their behaviour. Later we modify them to incorporate recent observations from the Cosmic Background Explorer(COBE), Wilkinson Microwave Anisotropy Probe, Supernova Cosmology Project and Hi-z Supernova project. We also examine the possibility of stringy matter as being a part of our Universe motivated by particle physics considerations and as a possible explanation for the Ultra High Energy Cosmic Rays.