School of Astronomy (SoA) - Weekly Seminar

Shant Baghramian ( Perimeter Institute )

Wednesday / 2-May-2012 / 13-Ordibehesht-1391/ 2:00 PM

IPM Larak Building, School of Astronomy 

Address: Larak Garden, opposite Araj, Artesh Highway,Tehran, Iran
E-mail: astro(at)ipm.ir

Abstract

Dwarf galaxies are the most known dark matter dominated luminous objects in Universe. 

Observing the line of sight velocity and position of stars in Milky way satellites, 

and assuming the dark matter potential and a specific configuration of 

stellar orbits, one can obtain the mass profile of dark matter in galaxies. In this talk I will show 

that by considering a generic case of phase-space density as a function of energy and angular momentum 

and by relaxing the specific choice of orbital configuration (which is assumed in literature), 

we can find the dark matter potential and mass profile in this general case and restudy the challenges of