Department of Physics, Engineering Physics & Astronomy

Department of Physics, Engineering Physics & Astronomy
Department of Physics, Engineering Physics & Astronomy

Departmental Colloquium -Cosmology, Gas around Galaxies and Primordial Black Holes

Simeon Bird,
(John Hopkins University)

Wednesday May 10th, 2017
11:30 a.m. Theatre B

Abstract:

Solving the big problems of modern day cosmology, such as the nature of dark matter or the total neutrino mass, requires extracting information from small scales and non-linear structures such as galactic halos. I design simulations which include not only the dark matter but massive neutrinos, hydrodynamics and other baryonic effects. I will discuss my work on cosmology, including a way to measure the neutrino mass with the Lyman-α forest. I will then discuss my work on using simulations of galaxies to constrain dark matter models. Finally I will discuss the interesting possibility that the LIGO detection of black hole mergers could have originated in primordial black hole dark matter.