{"id":113128,"date":"2018-03-11T10:40:24","date_gmt":"2018-03-11T10:40:24","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/cosmology-in-an-accelerated-universe-observations-and-phenomenology\/"},"modified":"2018-03-11T10:40:24","modified_gmt":"2018-03-11T10:40:24","slug":"cosmology-in-an-accelerated-universe-observations-and-phenomenology","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/pais-vasco-euskal-herriko-unibertsitatea\/cosmology-in-an-accelerated-universe-observations-and-phenomenology\/","title":{"rendered":"Cosmology in an accelerated universe: observations and phenomenology"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Irene Sendra Server <\/strong><\/h2>\n<p>En las \u00faltimas d\u00e9cadas la cosmolog\u00eda ha experimentado notables avances como consecuencia del desarrollo de nuevos experimentos que nos han abastecido con precisos datos observacionales. La calidad de estos datos ha permitido construir una imagen global del universo actual; un universo acelerado compuesto principalmente por materia oscura (23%) distinta a la materia ordinaria (5%), y energ\u00eda oscura (70%), la componente del universo que contrarresta el efecto gravitatorio y explica la expansi\u00f3n acelerada de \u00e9ste. Con la existencia de estas dos principales componentes se puede explicar la situaci\u00f3n actual del universo y los fen\u00f3menos que tienen lugar en \u00e9l. Sin embargo, su naturaleza es todav\u00eda un misterio, por lo que nos encontramos ante un largo y apasionante camino que recorrer.Es en este contexto donde se enmarca el trabajo presentado en esta tesis, cuyo principal objetivo es ir m\u00e1s all\u00e1 y obtener algunas pistas nuevas sobre la naturaleza de la energ\u00eda oscura. Las investigaciones llevadas a cabo durante esta tesis tratan de hacer frente a este sector \u00c2\u00bfoscuro\u00bb desde varias perspectivas, combinando la teor\u00eda y el an\u00e1lisis de datos astron\u00f3micos.Como primer acercamiento, en el cap\u00edtulo 2 se propone un nuevo modelo para unificar el sector \u00c2\u00bfoscuro\u00c2\u00bf: materia y energ\u00eda oscura. En los cap\u00edtulos 3 y 4 se aborda el problema de la energ\u00eda oscura desde una nueva perspectiva y se presentan unas nuevas parametrizaciones de la ecuaci\u00f3n de estado de la energ\u00eda oscura. Por \u00faltimo, en el cap\u00edtulo 5, a trav\u00e9s de los datos del fondo c\u00f3smico de microondas, se da un paso m\u00e1s all\u00e1 en f\u00edsica de las \u00e9pocas tempranas del universo, y se obtienen restricciones sobre  el exceso de densidad de radiaci\u00f3n observado.  Por otra parte, se da una explicaci\u00f3n a este fen\u00f3meno: se atribuye este exceso al fondo c\u00f3smico de ondas gravitacionales primordiales producido por las cuerdas c\u00f3smicas, bajo condiciones adiab\u00e1ticas.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Cosmology in an accelerated universe: observations and phenomenology<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Cosmology in an accelerated universe: observations and phenomenology <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Irene Sendra Server <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 27\/07\/2012<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Ruth Lazcoz Saez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: alexander Feinstein gotlinsky <\/li>\n<li>enrique Mart\u00ednez gonz\u00e1lez (vocal)<\/li>\n<li>yun Wang &#8212; (vocal)<\/li>\n<li>mairi Sakellariadou &#8212; (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Irene Sendra Server En las \u00faltimas d\u00e9cadas la cosmolog\u00eda ha experimentado notables avances como consecuencia del desarrollo [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[34004,12909],"tags":[224789,50150,224788,224791,95731,224790],"class_list":["post-113128","post","type-post","status-publish","format-standard","hentry","category-gravitacion","category-pais-vasco-euskal-herriko-unibertsitatea","tag-alexander-feinstein-gotlinsky","tag-enrique-Martinez-gonzalez","tag-irene-sendra-server","tag-mairi-sakellariadou","tag-ruth-lazcoz-saez","tag-yun-wang"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/113128","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=113128"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/113128\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=113128"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=113128"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=113128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}