سمینار این هفته را خانم لعیا گلچین برگزار خواهند کرد. نام سمینار و چکیدهٔ آن را در زیر می‌بینید:

Title:
Different reconstructions of a stellar system with spherical symmetry by use of schwartzchild method

Abstract:
First we will review the schwartzchild method, which is a numerical model for a stellar system, in that the first step is to chose a density distribution and a potential (corresponding to the density or not), then many orbits are computed with the potential from different families (such as boxes and tubes for triaxial systems) these orbits are used to reproduce the density distribution, the out put would be the superposition of subsets of the available orbits, each populated by an nonnegative number of stars. The existence of such a solution means that the chosen system is self-consistent.

Secondly the work we’ve done will be reported: We’ve used schwartzchild method for a density distribution (kuzmin) and a logarithmic potential with spherical symmetry, the solution was found for different sets of
orbits, once for a stellar system with minimum energy and once minimum population, these differences led to some differences between resultant “energy-angular momentum” Distribution Functions.

این سمینار در روز سه‌شنبه ۲۱ مهر ۱۳۸۸ ساعت ۱۵ در اتاق ۵۱۷ (اتاق قطب علمی در طبقهٔ پنجم دانشکدهٔ فیزیک) برگزار می‌شود.