School of Astronomy

IPM Cosmology Seminar

Covariant approach to dark matter, and dark energy

Qasem Exirifard (IPM)

Abstract:

I argue that the gravitational effects assigned to dark matter and energy should be used as experimental inputs in order to phenomenologically identify the dynamics of the empty space-time when the curvature of the space-time is sufficiently small. By construction, with introducing a new single parameter, I show that a covariant action can account for both the anomalous flat rotational velocity curves of all the spiral galaxies, and dark energy problem.
Although the nature of this parameter is currently phenomenological, I schematically pinpoint that it may be derived from the re-summation of all the sub-sub-leading (and beyond) quantum corrections to the dynamics of the empty space-time provided that the mass of the lightest massive neutrino is about 0.01 ev or so."

Wednesday 27-May-2009 / 6-Khordad-1388/ 2:00 PM

IPM Larak Building, School of Astronomy and Astrophysics

Address: Larak Garden, opposite Araj, Artesh Highway,Tehran, Iran

E-mail: astro(at)ipm.ir