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  • 2:57 PM, Sunday, 24 Oct 2021

Course Dual Degree (B. Tech + M.S / M.Tech)
Semester Electives
Subject Code ESA469
Subject Title High Redshift Universe


Basic cosmology – Expansion of the universe – scale factor – cosmological redshift – descriptive overview of inflation, unification of forces and fundamental particles. Primordial nucleosynthesis – elemental abundances: predictions and observations. Cosmic Microwave Background – detection, power spectrum, origin of CMB, anisotropies in the CMB and their origin – overview of COBE and WMAP probes – mission and instrumentation. Reionization of the universe – quasar absorption line observations – Gunn-Peterson trough – sources of reionization – first stars, AGNs, Lyman Break Galaxies – the reionization process. Detection of galaxies at high redshift – radio, sub-mm, IR surveys – photometric redshifts – drop-outs – Ly-alpha emitters. Comparison of high-z galaxy properties with the present universe – morphology, stellar content, sizes, luminosity function, baryon budget etc.

Clusters and groups of galaxies, morphology-density relationship, Butcher-Oemler effect. High Redshift Supernova – observations used to discover and measure SNe Ia (supernova rates, light curves, spectroscopic data) – standard candle (heterogeneity in SNe brightness and light curve shapes) – SNe Type Ia data sets (SDSS, SNLS, HST etc) – constrains on cosmological parameters mass density, dark energy density.

Text Books

1. The Early Universe (Frontiers in Physics) : Edward Kolb, Michael Turner, Wesview Press, 1994.

2. The Physics of the Cosmic Microwave Background : Pavel D. Naselsky, Dmitry I. Novikov and Igor D. Noyikov, Cambridge Astrophysics Series - 41.

3. Galaxies in the Universe : Linda Sparke, John Gallagher, Cambridge University Park

4. High Redshift Galaxies : Immo Appenzeller, Astronomy & Astrophysics LIbrary, Springer


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