{"id":278764,"date":"2026-06-11T21:07:06","date_gmt":"2026-06-11T21:07:06","guid":{"rendered":"http:\/\/6a29baa761a3de10dd93c7c4"},"modified":"2026-06-11T21:07:06","modified_gmt":"2026-06-11T21:07:06","slug":"en-el-universo-temprano-hay-galaxias-muertas-y-ya-sabemos-que-podria-estar-acabando-con-ellas","status":"publish","type":"post","link":"https:\/\/sarmiento24h.com\/?p=278764","title":{"rendered":"En el universo temprano hay galaxias muertas, y ya sabemos qu\u00e9 podr\u00eda estar acabando con ellas"},"content":{"rendered":"<p>Cuando el telescopio espacial James Webb comenz\u00f3 a observar algunas de las galaxias m\u00e1s lejanas del universo, los astr\u00f3nomos encontraron con una sorpresa dif\u00edcil de explicar. Apenas entre 1,000 y 2,000 millones de a\u00f1os despu\u00e9s del Big Bang, ya exist\u00edan numerosas galaxias \u00abmuertas\u00bb: sistemas masivos que hab\u00edan dejado de formar estrellas mucho antes de lo que predec\u00edan muchos modelos.<\/p>\n<p>Que una galaxia deje de producir estrellas no es extra\u00f1o. Lo que inquiet\u00f3 a los astr\u00f3nomos es la velocidad con que pareci\u00f3 ocurrir en el <a href=\"https:\/\/es.wired.com\/articulos\/parece-que-encontramos-los-restos-de-una-estrella-primigenia-uno-de-los-objetos-mas-esquivos-del-universo\">universo temprano<\/a>, un fen\u00f3meno para el cual existe evidencia considerable, aunque todav\u00eda no hay una explicaci\u00f3n definitiva. Sin embargo, un nuevo estudio podr\u00eda se\u00f1alar la respuesta o, al menos, una respuesta parcial. El sospechoso es un viento c\u00f3smico gigante capaz de expulsar el gas que alimenta el nacimiento de nuevas estrellas, en tiempo r\u00e9cord.<\/p>\n<p>La idea de que un viento c\u00f3smico \u201casesino de galaxias\u201d, generado por la propia actividad de una galaxia, pudiera explicar la aparici\u00f3n prematura de galaxias muertas es una de las hip\u00f3tesis m\u00e1s discutidas entre los astr\u00f3nomos. Hasta ahora, esta hip\u00f3tesis carec\u00eda de pruebas. Una reciente publicaci\u00f3n en <a href=\"https:\/\/academic.oup.com\/mnras\/article\/549\/3\/stag874\/8703724?login=false\"><em>Monthly Notices of the Royal Astronomical Society<\/em><\/a> presenta lo que sus autores consideran la primera observaci\u00f3n directa de este fen\u00f3meno.<\/p>\n<hr>\n<div class=\"ContentCardEmbedWrapper-hkvhYu kMYDit content-card-embed content-card-embed--stacked\" data-testid=\"ContentCardEmbedWrapper\" readability=\"17.684210526316\">\n<div class=\"ContentCardEmbedImage-bqahne fjmzkP content-card-embed__image\" data-testid=\"ContentCardEmbedImage\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj responsive-image\"><img decoding=\"async\" alt=\"Composici\u00f3n de galaxias polvorientas productoras de estrellas. \" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/6996140575797ab5e7b72b90\/master\/w_120,c_limit\/an-international-team.jpg 120w, https:\/\/media.es.wired.com\/photos\/6996140575797ab5e7b72b90\/master\/w_240,c_limit\/an-international-team.jpg 240w, https:\/\/media.es.wired.com\/photos\/6996140575797ab5e7b72b90\/master\/w_320,c_limit\/an-international-team.jpg 320w, https:\/\/media.es.wired.com\/photos\/6996140575797ab5e7b72b90\/master\/w_640,c_limit\/an-international-team.jpg 640w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/6996140575797ab5e7b72b90\/master\/w_775%2Cc_limit\/an-international-team.jpg\"><\/picture><\/span><\/div>\n<div class=\"ContentCardEmbedInfo-buyHWH gWLOee\" readability=\"18.526315789474\">\n<div class=\"BaseText-fEwdHD ContentCardEmbedHed-kDKGDs fUtEc dlHXUJ content-card-embed__hed\" data-testid=\"ContentCardEmbedHed\"><a class=\"BaseLink-haTOKm ContentCardEmbedHedLink-iBZsco gAoKdC hhUFQU content-card-embed__hed-link link\" href=\"https:\/\/es.wired.com\/articulos\/estas-extranas-galaxias-recien-descubiertas-en-el-universo-temprano-podrian-ser-la-pieza-clave-de-un-rompecabezas-cosmico\" data-testid=\"ContentCardEmbedHedLink\">Estas extra\u00f1as galaxias reci\u00e9n descubiertas en el universo temprano podr\u00edan ser la pieza clave de un rompecabezas c\u00f3smico<\/a><\/div>\n<p>Una observaci\u00f3n rompi\u00f3 el r\u00e9cord de distancia de galaxias polvorientas formadoras de estrellas: est\u00e1n presentes mil millones de a\u00f1os despu\u00e9s del Big Bang.<\/p>\n<\/div>\n<\/div>\n<hr>\n<h2>Un viento gigante imulsado por supernovas<\/h2>\n<p>Los investigadores detectaron este viento en CRISTAL-02, un sistema gal\u00e1ctico masivo que todav\u00eda forma estrellas de manera fren\u00e9tica y que podr\u00eda estar en camino de convertirse en una galaxia muerta. La luz analizada parti\u00f3 de la <a href=\"https:\/\/es.wired.com\/articulos\/esta-galaxia-lejana-esta-desapareciendo-y-nadie-sabe-exactamente-por-que\">galaxia<\/a> cuando el universo ten\u00eda apenas 1,100 millones de a\u00f1os. Gracias a observaciones combinadas del James Webb y del radiotelescopio ALMA, el equipo identific\u00f3 una gigantesca corriente de gas fr\u00edo que emerge de una regi\u00f3n de intensa formaci\u00f3n estelar y se extiende a lo largo de unos 23,000 a\u00f1os luz, equivalentes a siete kilop\u00e1rsecs.<\/p>\n<p>El fen\u00f3meno parece ser consecuencia de una elevada formaci\u00f3n estelar dentro de las galaxias de CRISTAL-02. All\u00ed nacieron generaciones de estrellas muy masivas que consumieron apresuradamente su combustible y explotaron como supernovas. La energ\u00eda acumulada de millones de esas explosiones habr\u00eda generado corrientes lo suficientemente poderosas para expulsar grandes cantidades de gas fuera del sistema CRISTAL-02.<\/p>\n<p>Los autores calcularon que el viento expulsa alrededor de 520 masas solares de gas cada a\u00f1o, mientras que la galaxia produce unas 260 masas solares de nuevas estrellas durante el mismo periodo. En otras palabras, <strong>el sistema est\u00e1 perdiendo el combustible para formar estrellas aproximadamente dos veces m\u00e1s r\u00e1pido de lo que lo consume.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cuando el telescopio espacial James Webb comenz\u00f3&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":278765,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[46],"tags":[],"class_list":["post-278764","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - 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