Probing cosmological physics with large scale motions of galaxies

Seminar
Speaker
Professor Adi Nusser, Faculty of Physics, Technion
Date
04/03/2013 - 12:30Add to Calendar 2013-03-04 12:30:00 2013-03-04 12:30:00 Probing cosmological physics with large scale motions of galaxies The standard cosmological model based on dark energy, standard gravity, and cold dark matter as the driver for structure formation has passed important observational tests related to the present distribution of matter on large scales (larger than a few 10s of Megaparsecs). It will be argued that deviations from the standard model can be further probed through signatures of the large scale motions (deviations from pure Hubble flow) of galaxies. Some constraints on f(R) and DGP gravity will be described using motions of galaxies in the nearby Universe. It will be shown how future surveys of ~ a billion galaxies like Euclid will allow constraints on dark energy models. Room 301, Physics Bld. 202 המחלקה לפיזיקה physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Room 301, Physics Bld. 202
Abstract

The standard cosmological model based on dark energy, standard gravity,
and cold dark matter as the driver for structure formation has passed
important observational tests related to the present distribution of
matter on large scales (larger than a few 10s of Megaparsecs). It will
be argued that deviations from the standard model can be further probed
through signatures of the large scale motions (deviations from pure
Hubble flow) of galaxies. Some constraints on f(R) and DGP gravity will
be described using motions of galaxies in the nearby Universe.
It will be shown how future surveys of ~ a billion galaxies like
Euclid will allow constraints on dark energy models.

תאריך עדכון אחרון : 10/02/2013