O Problema de dous corpos con masa variable
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[GL] No presente traballo tratamos un dos problemas máis representativos e relevantes da
Mecánica Celeste: o Problema de dous corpos con masa variable. O obxectivo do texto
é dar unha visión global deste tema así como particularizalo en diferentes escenarios de
perda de masa. No desenvolvemento do mesmo faise un percorrido por esta liña de investigaci
ón, con implicacións tanto matemáticas como físicas, comezando pola formulación do
mesmo no caso non perturbado, sentando así os conceptos básicos e necesarios para o resto
do texto. Continuaremos co que constitúe a cerna deste traballo, a explicación dos fundamentos
teóricos da perda de masa e a súa influencia na dinámica dos corpos involucrados,
contemplando diferentes leis e situacións que se dan na física estelar. Posteriormente trataremos
casos particulares integrables e obteremos os resultados numéricos dos mesmos para
algunhas situacións concretas. Finalmente inclúense os programas realizados polo autor do
Traballo de Fin de Grao que proporcionan a integración dos diferentes casos estudados.
[EN] In this work, we deal with one of the most representative and relevant issues of Celestial Mechanics which is the Two-body problem with variable mass. The objective of the text is to present a global vision of this topic as well as to focus on scenarios of mass loss. We review this line of research along with the mathematical implications as well as those of physics, beginning with the formulation in the case of no perturbation. In that way, we establish the basic and necessary concepts involved in the rest of the text. We continue with what constitutes the nucleus of this contribution including the explanation of the fundamental theories of mass loss and their influence on the dynamics of the involved bodies, considering different laws and situations related to phyisics and stellar dynamics. Finally, we treat particular integrable cases and we obtain the numerical results for concrete situations.We also include the programs carried out by the author of this TFG that provide the integration of the different cases.
[EN] In this work, we deal with one of the most representative and relevant issues of Celestial Mechanics which is the Two-body problem with variable mass. The objective of the text is to present a global vision of this topic as well as to focus on scenarios of mass loss. We review this line of research along with the mathematical implications as well as those of physics, beginning with the formulation in the case of no perturbation. In that way, we establish the basic and necessary concepts involved in the rest of the text. We continue with what constitutes the nucleus of this contribution including the explanation of the fundamental theories of mass loss and their influence on the dynamics of the involved bodies, considering different laws and situations related to phyisics and stellar dynamics. Finally, we treat particular integrable cases and we obtain the numerical results for concrete situations.We also include the programs carried out by the author of this TFG that provide the integration of the different cases.
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Traballo Fin de Grao en Matemáticas. Curso 2018-2019
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