Habitability in the Early Universe

Bangera, Nidhi (2020) Habitability in the Early Universe. Bachelor's Thesis, Astronomy.

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Abstract

The conditions for habitability and their distribution in the Universe is an exciting topic of research. It is interesting to study the habitability at high redshifts, specifically during the Epoch of Reionization, as this period is one of the least understood epochs of the Universe, and its study would help further our understanding of galaxy formation. In this thesis, we look at the habitability of galaxies in and around the Epoch of Reionization (5.5≤z≤20). We include three key criteria for habitability: (i) the presence of a host star, (ii) sufficient metallicity to produce terrestrial planets, and (iii) an environment free of life extinguishing type II supernova radiation. These properties for each galaxy are calculated from their stellar masses and star formation rates. An extension to the model is also made wherein the effect of overlapping supernova bubbles on habitability is studied. We find that massive galaxies with low star formation rates have the most probable conditions for habitability.

Item Type:	Thesis (Bachelor's Thesis)
Supervisor name:	Ucci, G. and Dayal, P.
Degree programme:	Astronomy
Thesis type:	Bachelor's Thesis
Language:	English
Date Deposited:	13 Jul 2020 13:42
Last Modified:	13 Jul 2020 13:42
URI:	https://fse.studenttheses.ub.rug.nl/id/eprint/22613

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