{"id":6662,"date":"2020-05-01T00:00:00","date_gmt":"2020-05-01T00:00:00","guid":{"rendered":"https:\/\/tedae.org\/uncategorized\/el-cab-y-el-iac-participan-en-el-descubrimiento-de-un-exoplaneta-gigante\/"},"modified":"2024-04-02T10:50:37","modified_gmt":"2024-04-02T10:50:37","slug":"el-cab-y-el-iac-participan-en-el-descubrimiento-de-un-exoplaneta-gigante","status":"publish","type":"post","link":"https:\/\/tedae.org\/en\/espacio\/el-cab-y-el-iac-participan-en-el-descubrimiento-de-un-exoplaneta-gigante\/","title":{"rendered":"El CAB y el IAC participan en el descubrimiento de un exoplaneta gigante"},"content":{"rendered":"<p> El Centro de Astrobiolog\u00eda (CAB, CSIC-INTA) y el Instituto de Astrof\u00edsica de Canarias (IAC) han formado parte del equipo cient\u00edfico internacional liderado por la Universidad de Ginebra responsable del descubrimiento de un exoplaneta gigante. WASP-76b, situado a unos 390 a\u00f1os luz de distancia, se encuentra en la constelaci\u00f3n de Piscis y ha sido hallado gracias al nuevo instrumento ESPRESSO instalado en el telescopio VLT (Very Large Telescope) del Observatorio Europeo Austral (ESO), en Cerro Paranal (desierto de Atacama, en Chile).<\/p>\n<p> WASP-76b es un exoplaneta gigante extremadamente caliente, con unas temperaturas diurnas que suben por encima de los 2.400\u00b0C, lo suficientemente altas como para vaporizar metales como el hierro. Estos vapores son arrastrados por el viento hacia las regiones nocturnas del planeta donde, con el descenso de las temperaturas (en torno a 1.500\u00baC), se condensan y caen en forma de lluvia.<\/p>\n<p>Los investigadores han identificado por primera vez variaciones qu\u00edmicas en un exoplaneta gigante, fen\u00f3meno que se debe a que el exoplaneta muestra siempre la misma cara a su estrella anfitriona. Esta situaci\u00f3n, conocida como \u201cacoplamiento de marea\u201d, es la misma que se da entre la Luna y la Tierra: el tiempo que tarda el exoplaneta en girar alrededor de su eje coincide con el tiempo que tarda en recorrer su \u00f3rbita. De este modo, el exoplaneta WASP-76b mantiene una regi\u00f3n diurna y otra nocturna, con grandes diferencias de temperatura. <\/p>\n<p>El exoplaneta recibe miles de veces m\u00e1s radiaci\u00f3n de su estrella que la Tierra del Sol, lo que provoca que la temperatura en su cara diurna sea tan elevada que las mol\u00e9culas se separen en \u00e1tomos, y que metales como el hierro se encuentren en la atm\u00f3sfera en forma de vapor.<\/p>","protected":false},"excerpt":{"rendered":"<p>El CAB y el IAC participan en el descubrimiento de un exoplaneta gigante<\/p>","protected":false},"author":5,"featured_media":6663,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[436],"tags":[],"class_list":{"0":"post-6662","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-espacio"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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