{"id":1999,"date":"2009-05-07T05:00:41","date_gmt":"2009-05-07T03:00:41","guid":{"rendered":"http:\/\/www.emiliosilveravazquez.com\/blog\/?p=1999"},"modified":"2009-04-26T22:51:26","modified_gmt":"2009-04-26T20:51:26","slug":"muy-interesante-1130","status":"publish","type":"post","link":"http:\/\/www.emiliosilveravazquez.com\/blog\/2009\/05\/07\/muy-interesante-1130\/","title":{"rendered":"Muy interesante 11\/30"},"content":{"rendered":"<p style=\"text-align: justify;\"><strong><span style=\"text-decoration: underline;\">\u00bfQu\u00e9 es una supernova y para qu\u00e9 sirve?<\/span><\/strong><\/p>\n<p style=\"text-align: justify;\">Es una estrella de entre 5 y 10 veces la masa del sol que, despu\u00e9s de quemar hidr\u00f3geno, helio y carb\u00f3n para mantenerse viva, recurrir\u00e1 al hierro. Pero la fusi\u00f3n de hierro no libera energ\u00eda, sino que la absorbe. Entonces el n\u00facleo se enfr\u00eda, toda fusi\u00f3n cesa, y la pobre estrella implota. Y despu\u00e9s, explota. Esta explosi\u00f3n es el acto de violencia m\u00e1s grandioso del cosmos. Una sola supernova puede ser m\u00e1s brillante que una galaxia entera durante unos d\u00edas. Despu\u00e9s de esta fase, el n\u00facleo puede terminar convertido en una <a href=\"#\" onclick=\"referencia('enana blanca',event); return false;\">enana blanca<\/a>, en una estrella de <a href=\"#\" onclick=\"referencia('neutron',event); return false;\">neutrones<\/a> o en un <a href=\"#\" onclick=\"referencia('agujero negro',event); return false;\">agujero negro<\/a>. Las supernovas se usan para determinar la distancia a la que est\u00e1 otra galaxia y su velocidad de expansi\u00f3n.<\/p>\n<p style=\"text-align: center;\"><object width=\"532\" height=\"364\" data=\"http:\/\/www.emiliosilveravazquez.com\/blog\/wp-content\/uploads\/2009\/04\/galeria_supernovas.swf\" type=\"application\/x-shockwave-flash\"><param name=\"src\" value=\"http:\/\/www.emiliosilveravazquez.com\/blog\/wp-content\/uploads\/2009\/04\/galeria_supernovas.swf\" \/><param name=\"bgcolor\" value=\"#ffffff\" \/><\/object><\/p>\n<p style=\"text-align: right;\"><em>Texto extra\u00eddo de <a href=\"http:\/\/www.muyinteresante.es\/astronomia\/11.html\" target=\"_blank\">Muy interesante<\/a><\/em><\/p>\n<div class='bookmark'>\r\n\t\t<table align='left' border='0' cellpadding='0' width='100%'>\r\n\t\t<tr><td><span class='pushbutton'><a href='http:\/\/delicious.com\/post?url=http%3A%2F%2Fwww.emiliosilveravazquez.com%2Fblog%2F2009%2F05%2F07%2Fmuy-interesante-1130%2F&amp;title=Muy+interesante+11%2F30' title='Delicious' target='_blank' rel='nofollow'><img src='http:\/\/www.emiliosilveravazquez.com\/blog\/wp-content\/plugins\/knxdt-bookmarks-wordpress-plugin\/images\/delicious.png'  alt='' class='book_img' border='none' style='margin:1px; 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Es una estrella de entre 5 y 10 veces la masa del sol que, despu\u00e9s de quemar hidr\u00f3geno, helio y carb\u00f3n para mantenerse viva, recurrir\u00e1 al hierro. Pero la fusi\u00f3n de hierro no libera energ\u00eda, sino que la absorbe. Entonces el n\u00facleo se enfr\u00eda, toda fusi\u00f3n cesa, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_s2mail":"","footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.emiliosilveravazquez.com\/blog\/wp-json\/wp\/v2\/posts\/1999"}],"collection":[{"href":"http:\/\/www.emiliosilveravazquez.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.emiliosilveravazquez.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.emiliosilveravazquez.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.emiliosilveravazquez.com\/blog\/wp-json\/wp\/v2\/comments?post=1999"}],"version-history":[{"count":0,"href":"http:\/\/www.emiliosilveravazquez.com\/blog\/wp-json\/wp\/v2\/posts\/1999\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.emiliosilveravazquez.com\/blog\/wp-json\/wp\/v2\/media?parent=1999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.emiliosilveravazquez.com\/blog\/wp-json\/wp\/v2\/categories?post=1999"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.emiliosilveravazquez.com\/blog\/wp-json\/wp\/v2\/tags?post=1999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}