{"id":84360,"date":"2000-04-05T00:00:00","date_gmt":"2000-04-05T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/variabilidad-tipo-gamma-doradus-en-cumulos-abiertos\/"},"modified":"2000-04-05T00:00:00","modified_gmt":"2000-04-05T00:00:00","slug":"variabilidad-tipo-gamma-doradus-en-cumulos-abiertos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/astronomia-y-astrofisica\/variabilidad-tipo-gamma-doradus-en-cumulos-abiertos\/","title":{"rendered":"\u00abvariabilidad tipo gamma doradus en c\u00famulos abiertos\u00bb"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Susana Martin Ruiz <\/strong><\/h2>\n<p>En los \u00faltimos diez a\u00f1os se ha descubierto un nuevo grupo de estrellas variables caracterizadas por largos per\u00edodos (0.4-3.0 d)y bajas amplitudes, cuyos valores se encuentran entre 0.01 y 0.1 de magnitud en el filtra v. estas estrellas conocidas como variables g doradus, muestran tipos espectrales a7-f5 y clase de luminosidad iv-v, comportamiento que las sit\u00faa enuna regi\u00f3n bien definida de la parte baja de la banda de inestabilidad de las cef\u00e9idas en el diagrama hr, en la zona donde el borde fr\u00edo interesecta con la zams. a pesar de que se conocen hasta el momento un n\u00famero muy reducido (alrededor de 12), la principal hip\u00f3tesis que existe para explicar la variabilidad de estas estrellas es la de mecanismos de pulsaci\u00f3n en modos g (gravedad), aunque debido a su complejidad, continua siendo objeto de estudio.  el objeto de esta tesis es buscar nuevas variables g doradus y qu\u00e9 par\u00e1metros fisicos se encuentran relacionados con este tipo de variabilidad. Para ello, hemos centrado nuestro estudio en el entorno de los c\u00famulos abiertos, proporcion\u00e1ndonos una relaci\u00f3n entre pulsaci\u00f3n, edad y abundancia, el tener las estrellas que lo contienen un origen com\u00fan.  durante cuatro a\u00f1os se ha realizado fotometr\u00eda uvbyb para una muestra de 175 estrellas pertenecientes a 10 c\u00famulos abiertos con edades comprendias entre los 35 y 800 millones de a\u00f1os. Para facilitar la detecci\u00f3n de estas estrellas, debido a sus largos per\u00edodos y bajas amplitudes de pulsaci\u00f3n, se han aplicado dos tests estad\u00edsticos. A partir de ambos an\u00e1lisis se han clasificado como posibles variables a 41 estrellas de la muestra, de las cuales 8 son variables g doradus. La existencia de estas estrellas parece estar relacionada con la abundancia m\u00e1s que con la edad de c\u00famulo.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>\u00abvariabilidad tipo gamma doradus en c\u00famulos abiertos\u00bb<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 \u00abvariabilidad tipo gamma doradus en c\u00famulos abiertos\u00bb <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Susana Martin Ruiz <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Granada<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 04\/05\/2000<\/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>Eloy Rodriguez Martinez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Antonio Molina cuevas <\/li>\n<li>Manuel Saez cano (vocal)<\/li>\n<li>victor Costa boronat (vocal)<\/li>\n<li>m. Zerbi filippo (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Susana Martin Ruiz En los \u00faltimos diez a\u00f1os se ha descubierto un nuevo grupo de estrellas variables [&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":[1050,1052,9978,7617],"tags":[22273,103451,178260,100862,178259,22220],"class_list":["post-84360","post","type-post","status-publish","format-standard","hentry","category-astronomia-y-astrofisica","category-cosmologia-y-cosmogonia","category-estrellas","category-estrellas-variables","tag-antonio-molina-cuevas","tag-eloy-rodriguez-Martinez","tag-m-zerbi-filippo","tag-manuel-saez-cano","tag-susana-martin-ruiz","tag-victor-costa-boronat"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/84360","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=84360"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/84360\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=84360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=84360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=84360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}