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<dc:contributor>Ruiz, Eduardo</dc:contributor>
<dc:contributor>Molina, Alfred</dc:contributor>
<dc:creator>Egido Cuchi, Francisco Javier</dc:creator>
<dc:date>2014-02</dc:date>
<dc:description>[EN] We build and study rotating and time-independent stellar models in General Relativity&#xd;
using analytical approximations (post-Minkowskian and slow rotation) for&#xd;
a perfect fluid with linear equation of state and some of its subcases, including in&#xd;
particular uniform density, the one of the Wahlquist’s and Whitakker’s solutions&#xd;
fluid and MIT bag model strange matter. We obtain a global spacetime matching&#xd;
the interior solution (inside the source) to an asymptotically flat exterior using&#xd;
both Lichnerowicz and Darmois-Israel matching conditions. Concerning the interior,&#xd;
we find its possible Petrov types and cast it into the same form a certain&#xd;
perturbative expansion of Wahlquist’s solution has. We also use the AKM numerical&#xd;
code to obtain equivalent models to compare both the metric components&#xd;
and the results for many physical properties of the source we obtain from analytical&#xd;
formulae, getting good results from the comparison. Finally, we increase the&#xd;
complexity and adaptability of the interior adding an additional layer of linear&#xd;
EOS matter.     &#xd;
[ES] el espectro completo de estrellas compactas degeneradas se puede&#xd;
modelar con capas de polítropo y EOS de modelo de bolsa del MIT, los cuales&#xd;
están dentro de los tipos de métrica obtenidos por ahora con CMMR. En el caso&#xd;
particular de estrellas extrañas con corteza, sólo harían falta dos capas. Se podría&#xd;
pensar que para estrellas de baja masa la corteza es demasiado fina como para&#xd;
que realmente merezca la pena, pero se deforma más fácilmente que la SQM a&#xd;
velocidades angulares altas y puede ser de importancia en la medida de la ISCO</dc:description>
<dc:format>application/pdf</dc:format>
<dc:identifier>http://hdl.handle.net/10366/124147</dc:identifier>
<dc:language>eng</dc:language>
<dc:subject>21 Astronomía y Astrofísica</dc:subject>
<dc:subject>22 Física</dc:subject>
<dc:subject>12 Matemáticas</dc:subject>
<dc:title>Building approximate stellar models in general relativity</dc:title>
<dc:type>info:eu-repo/semantics/doctoralThesis</dc:type>
<dcterms:alternative>Construyendo modelos estelares aproximados en relatividad general</dcterms:alternative>
<dcterms:extent>280 p.</dcterms:extent>
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