{"id":96122,"date":"2018-03-11T10:16:17","date_gmt":"2018-03-11T10:16:17","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/a-spatially-resolved-of-ionized-regions-in-galaxies-at-different-scales\/"},"modified":"2018-03-11T10:16:17","modified_gmt":"2018-03-11T10:16:17","slug":"a-spatially-resolved-of-ionized-regions-in-galaxies-at-different-scales","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/astronomia-y-astrofisica\/a-spatially-resolved-of-ionized-regions-in-galaxies-at-different-scales\/","title":{"rendered":"A spatially resolved of ionized regions in galaxies at different scales"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Rub\u00e9n Garc\u00eda Benito <\/strong><\/h2>\n<p>In this thesis we have studied star formation processes in galaxies at different scales: giant hii regions in spiral discs and individual starburst knots in hii galaxies. the first has revealed that star formation in these regions is complex and, at lest in ngc 5471, has proceeded in a general spatio-temporal sequence from the halo inwards to the core. A remarkable abundance uniformity is found confirming previous results from classical works and validating the use of integrated spectroscopy to obtain abundances in distants objects. the second has allowed a detailed abundance analysis of several star forming knots in two hii galaxies which shows no conclusive spatial variations of the total abundances. Since there are stellar populations old enough as to have produced supernovae, this implies either a very fast and effective mixing with the surroundings or that the metals whose abundances are inferred proceed from from previous star formation events.   en esta tesis presentamos un estudio de los procesos de formaci\u00c2\u00bfon estelar en galaxias a dos escalas diferentes: regiones hii gigantes en discos de espirales y brotes individuales en galaxias hii . la primera parte ha mostrado que la formaci\u00c2\u00bfon estelar en ese tipo de regiones es compleja y, al menos en ngc 5471, ha procedido en una secuencia general espacio-temporal desde el halo hacia el n\u00c2\u00bfucleo. tambi\u00c2\u00bfen se ha hallado una abundancia uniforme confirmando resultados anteriores de trabajos cl \u00c2\u00bfasicos, validando el uso de la espectroscop \u00c2\u00bf\u00c2\u00bfa integrada para obtener abundancias en objetos m\u00c2\u00bfas distantes. en la segunda parte se ha llevado a cabo un an\u00c2\u00bf alisis detallado de varios nodos de formaci\u00c2\u00bfon estelar en dos galaxias hii . De los resultados no se concluye que haya variaciones espaciales de las abundancias totales. Ya que se encuentran poblaciones lo suficientemente viejas como para producir supernovas, esto implica que, o se produce un mezclado r \u00c2\u00bfapido y efectivo con el entorno, o los metales de los que se derivan las abundancias proceden de episodios anteriores de formaci \u00c2\u00bfon estelar.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>A spatially resolved of ionized regions in galaxies at different scales<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 A spatially resolved of ionized regions in galaxies at different scales <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Rub\u00e9n Garc\u00eda Benito <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 23\/09\/2009<\/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>Angeles Diaz Beltran<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 manuel V\u00edlchez medina <\/li>\n<li>monica Rela\u00f1o pastor (vocal)<\/li>\n<li>Jos\u00e9 Miguel Mas hesse (vocal)<\/li>\n<li>Elena Terlevich (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Rub\u00e9n Garc\u00eda Benito In this thesis we have studied star formation processes in galaxies at different scales: [&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 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