Full text
| |
| Author(s): |
Tiago Amancio da Silva
Total Authors: 1
|
| Document type: | Master's Dissertation |
| Press: | Campinas, SP. |
| Institution: | Universidade Estadual de Campinas (UNICAMP). Instituto de Física Gleb Wataghin |
| Defense date: | 2009-09-14 |
| Examining board members: |
Patricio Anibal Letelier Sotomayor;
Vilson Tonin Zanchin;
Pedro Cunha de Holanda
|
| Advisor: | Patricio Anibal Letelier Sotomayor; Orlando Luis Goulart Peres |
| Abstract | |
We study the process of galactic merger, where galaxies are regarded as compact objects with time-dependent masses. This study is made through the analysis of the system's orbit. For this purpose, we consider the gravitational problem of two bodies exchanging mass with a surrounding atmosphere. The Gylden-Mestschersky problem is reviewed in order to be used as a reference for that problem. We propose some models of mass variation, based on a hydrodynamics analogy and on a microscopic analysis of the system. The two-body problem considered is applied to the three-boby problem of varying masses. We found stationary solutions corresponding to the ones of the usual constant masses problem (AU) | |
| FAPESP's process: | 07/01207-7 - Galaxy merger: a dynamic systems analysis approach |
| Grantee: | Tiago Amancio da Silva |
| Support Opportunities: | Scholarships in Brazil - Master |