Stony Brook University
The large-scale structure of our universe (the distribution of galaxies on very large-scales for instance) contains a wealth of information about the origin, evolution, and matter content of the universe. Extracting this information relies crucially on understanding how galaxies and other biased objects trace the large-scale matter distribution. In a universe such as our own, with both cold dark matter and massive neutrinos, or in alternative cosmologies with clustered quintessence, this problem is much more complicated. I will discuss new tools that my group has developed to study gravitational evolution in cosmologies with multiple fluids, the novel signatures we have identified including a new probe of neutrino mass, and the broader implications for models of large-scale structure.
About the speaker
Marilena Loverde is an Assistant Professor in the C. N. Yang Institute for Theoretical Physics and the Department of Physics and Astronomy at Stony Brook University. She did her undergraduate studies at the University of California, Berkeley and earned her PhD at Columbia University. Following her PhD Marilena spent time as a post doc at the Kavli Institute for Cosmological Physics at the University of Chicago and at the Institute for Advanced Study in Princeton.
Marilena's research is in theoretical cosmology, broadly interested in developing tools to use observations of galaxies and the cosmic microwave background to learn about the origin and evolution of the universe. She has spent a lot of time thinking about: weak gravitational lensing, primordial non-Gaussianity as a test of inflation, and the cosmic neutrino backround. Currently, Marilena's research focuses on the massive cosmic neutrino background and structure formation.