Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Recolector de Cienci...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
addClaim

Colapso Estelar

Authors: Díaz Giménez, Luis;

Colapso Estelar

Abstract

Lo que hoy en día conocemos como agujeros negros fueron considerados durante años como meros artefactos matemáticos de la Relatividad General. En la actualidad existen varios objetos catalogados como posibles agujeros negros y tenemos indicios de que se forman como resultado del colapso de estrellas masivas. En este trabajo estudiamos el colapso estelar, principalmente desde el punto de vista de la Relatividad General. Para ello derivamos las ecuaciones hidrodinámicas del colapso adiabático en simetría esférica e introducimos como solución analítica de las mismas el modelo de Oppenheimer-Snyder, que trata la estrella como una nube homogénea de partículas de polvo. De este modelo se pueden deducir algunas de las características claves del colapso que después son confirmadas al compararlas con soluciones numéricas más complejas y realistas de las ecuaciones hidrodinámicas. El código empleado para obtener estas soluciones se utiliza también para comprobar que, debido a los efectos de la ecuación de estado a altas densidades, es posible que se produzca un rebote capaz de detener el colapso. Se cree que este es el origen de las estrellas de neutrones. Además, se intenta demostrar que los distintos efectos que rompen la simetría esférica de la estrella, como su rotación o su campo electromagnético, no afectan significativamente el resultado final del colapso. Esto se realiza, para la región exterior a la estrella, considerando las fuentes de asimetría como perturbaciones y, en el interior de la estrella, mediante la aplicación de teoremas que garantizan la formación de la singularidad.

Keywords

Colapso estelar, Hidrodinámica, Agujero negro, Gravitación, Relatividad general

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!