Rotación de estrellas coherentes
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Asociación Física Argentina
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Este artículo se refiere a la rotación de estrellas cuánticas relativistas. Similarmente a lo que sucede en espacio plano, demostramos que los sistemas cuánticos coherentes en estado fundamental son no rotantes. En el caso de estrellas neutrónicas, que pueden considerarse como formadas fundamentalmente por un superfluido, el momento angular se debe a la presencia de vórtices, los cuales en buena medida determinan los efectos observables desde el exterior por acoplamiento con la corteza. Su densidad y distribución es crucial en la dinámica de la estrella. Aquí estudiamos los efectos gravitatorios que modifican la distribución de vórtices y encontramos efectos notablemente significativos, con correcciones para modelos realistas del orden del 15%.
This article is concerned with the rotation of relativistic quantum stars. Similar to what happens in flat space, we show that ground-state coherent quantum systems are non-rotating. In the case of neutron stars, which can be considered as fundamentally formed by a superfluid, the angular momentum is due to the presence of vortices, which to a large extent determine the observable effects from the outside due to coupling with the crust. Its density and distribution is crucial in the dynamics of the star. Here we study the gravitational effects that modify the vortex distribution and find remarkably significant effects, with corrections for realistic models of the order of 15%.
This article is concerned with the rotation of relativistic quantum stars. Similar to what happens in flat space, we show that ground-state coherent quantum systems are non-rotating. In the case of neutron stars, which can be considered as fundamentally formed by a superfluid, the angular momentum is due to the presence of vortices, which to a large extent determine the observable effects from the outside due to coupling with the crust. Its density and distribution is crucial in the dynamics of the star. Here we study the gravitational effects that modify the vortex distribution and find remarkably significant effects, with corrections for realistic models of the order of 15%.
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Superfluídos, Estrellas cuánticas, Astronomía, Ciencias Físicas, CIENCIAS NATURALES Y EXACTAS
