MR. TEJASWI VENUMADHAV

Standard cosmology holds that structure results from the amplification of primordial fluctuations into large-scale inhomogeneities. These primordial fluctuations are taken to be largely adiabatic in nature at the time of last scattering. In this seminar, the speaker will explore what happens to small-scale isothermal fluctuations, i.e., those of the baryon field alone during the epoch of recombination. Can these go nonlinear at those high redshifts? To answer the question, we will need to look at transport of Lyman-alpha and continuum photons across these perturbations.