سمینار این هفته را <آقای شانت باغرام> برگزار خواهند کرد. عنوان و چکیدهٔ سمینار ایشان به شرح زیر است:

Title:
What Can Stellar Kinematics Tell Us About Dark Matter in Dwarf Galaxies?

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 Cold Dark
Matter (CDM) paradigm like core-cusp or missing satellite problem.

این سمینار در روز <یک شنبه> <۱۷ اردیبهشت ۱۳۹۱> در ساعت <۱۵:۰۰> در اتاق ۵۱۳ (اتاق شورا) در طبقهٔ پنجم دانشکدهٔ فیزیک برگزار خواهد شد.