{"id":83348,"date":"2026-03-25T19:47:53","date_gmt":"2026-03-25T19:47:53","guid":{"rendered":"http:\/\/69c41f3e220d8279f160f413"},"modified":"2026-03-25T19:47:53","modified_gmt":"2026-03-25T19:47:53","slug":"los-agujeros-negros-supermasivos-dejaron-de-crecer-tan-rapido-como-antes-por-fin-sabemos-por-que","status":"publish","type":"post","link":"https:\/\/sarmiento24h.com\/?p=83348","title":{"rendered":"Los agujeros negros supermasivos dejaron de crecer tan r\u00e1pido como antes; por fin sabemos por qu\u00e9"},"content":{"rendered":"<p>Desde hace m\u00e1s de dos d\u00e9cadas, los astr\u00f3nomos intentan explicar un fen\u00f3meno inquietante: los agujeros negros supermasivos que conocemos llevan miles de millones de a\u00f1os creciendo mucho m\u00e1s lento que en el pasado, aunque el mecanismo que los alimenta sigue siendo el mismo.<\/p>\n<p>Un nuevo estudio publicado en <em>The Astrophysical Journal<\/em> identifica por fin al presunto responsable de esa desaceleraci\u00f3n. Los agujeros negros ya no brillan como antes porque el universo cambi\u00f3 y el gas fr\u00edo que los alimentaba dej\u00f3 de fluir con la abundancia de su juventud.<\/p>\n<h2>El amanecer y ocaso de los agujeros negros supermasivos<\/h2>\n<p>Los agujeros negros supermasivos viven en el <a href=\"https:\/\/es.wired.com\/articulos\/centro-de-la-via-lactea-es-un-nucleo-de-materia-oscura-no-un-agujero-negro-propone-estudio\">centro de casi todas las galaxias<\/a> y el universo tuvo una \u00e9poca en que estas estructuras no dejaban de crecer. Pero hace unos 10,000 millones de a\u00f1os, su ritmo de crecimiento empez\u00f3 a disminuir de forma marcada. Hoy, los astr\u00f3nomos observan un cosmos en calma, muy distinto a la adolescencia explosiva en la que los agujeros negros devoraban materia a velocidades extremas.<\/p>\n<hr>\n<div class=\"ContentCardEmbedWrapper-hkvhYu kMYDit content-card-embed content-card-embed--stacked\" data-testid=\"ContentCardEmbedWrapper\" readability=\"20.698884758364\">\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=\"Concepto de peque\u00f1os agujeros negros primordiales.\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/sarmiento24h.com\/wp-content\/uploads\/2026\/03\/los-agujeros-negros-supermasivos-dejaron-de-crecer-tan-rapido-como-antes-por-fin-sabemos-por-que-2.jpg,c_limit\/primordial-black-hole-still-4k-small.jpg 120w, https:\/\/media.es.wired.com\/photos\/6983ad7ca192725251246617\/master\/w_240,c_limit\/primordial-black-hole-still-4k-small.jpg 240w, https:\/\/media.es.wired.com\/photos\/6983ad7ca192725251246617\/master\/w_320,c_limit\/primordial-black-hole-still-4k-small.jpg 320w, https:\/\/media.es.wired.com\/photos\/6983ad7ca192725251246617\/master\/w_640,c_limit\/primordial-black-hole-still-4k-small.jpg 640w\" sizes=\"100vw\" src=\"https:\/\/sarmiento24h.com\/wp-content\/uploads\/2026\/03\/los-agujeros-negros-supermasivos-dejaron-de-crecer-tan-rapido-como-antes-por-fin-sabemos-por-que.jpg\"><\/picture><\/span><\/div>\n<div class=\"ContentCardEmbedInfo-buyHWH gWLOee\" readability=\"21.992565055762\">\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\/una-explosion-de-agujero-negro-primordial-el-origen-del-neutrino-mas-poderoso-de-la-historia\" data-testid=\"ContentCardEmbedHedLink\">Una explosi\u00f3n de agujero negro primordial: el origen del neutrino m\u00e1s poderoso de la historia<\/a><\/div>\n<p>Para comprender c\u00f3mo surge el neutrino m\u00e1s energ\u00e9tico de la historia, quiz\u00e1 habr\u00e1 que considerar explosiones de agujeros negros surgidos instantes despu\u00e9s del Big Bang.<\/p>\n<\/div>\n<\/div>\n<hr>\n<p>Para explicar esa disminuci\u00f3n, los cient\u00edficos propusieron tres escenarios: Uno suger\u00eda que las galaxias actuales albergan agujeros negros m\u00e1s peque\u00f1os y, por lo tanto, menos voraces. Otro planteaba que simplemente hay menos episodios de actividad de crecimiento. El \u00faltimo colocaba la atenci\u00f3n en el entorno de los agujeros advirtiendo que \u201cla comida\u201d que los hace crecer ya no llega con la misma facilidad que antes.<\/p>\n<p>Aunque cada hip\u00f3tesis explicaba bien el fen\u00f3meno del ocaso de los <a href=\"https:\/\/es.wired.com\/articulos\/este-es-probablemente-el-agujero-negro-mas-masivo-de-la-historia\">agujeros negros supermasivos<\/a>, los datos con los que contaban los expertos eran pocos y ambiguos para decantarse por una opci\u00f3n. El enigma se ha extendido por los \u00faltimos 20 a\u00f1os, no por falta de ideas, sino porque se estuvo reuniendo m\u00e1s informaci\u00f3n del firmamento.<\/p>\n<h2>Datos de rayos X al rescate<\/h2>\n<p>Un equipo internacional de astr\u00f3nomos logr\u00f3 reconstruir la historia del crecimiento de 8,000 agujeros negros supermasivos y 1.3 millones de galaxias a lo largo de 12,000 millones de a\u00f1os. Para hacerlo, reuni\u00f3 el conjunto m\u00e1s amplio y homog\u00e9neo de observaciones en rayos X disponible hasta ahora, combinando la sensibilidad extrema de Chandra, la cobertura intermedia de XMM-Newton y el barrido amplio de eROSITA.<\/p>\n<p>Cada observatorio aport\u00f3 una pieza distinta del mismo rompecabezas, y los investigadores procesaron todo bajo los mismos criterios f\u00edsicos y estad\u00edsticos. <a data-offer-url=\"https:\/\/iopscience.iop.org\/article\/10.3847\/1538-4357\/ae173d\" class=\"external-link\" data-event-click=\"{&quot;element&quot;:&quot;ExternalLink&quot;,&quot;outgoingURL&quot;:&quot;https:\/\/iopscience.iop.org\/article\/10.3847\/1538-4357\/ae173d&quot;}\" href=\"https:\/\/iopscience.iop.org\/article\/10.3847\/1538-4357\/ae173d\" rel=\"nofollow noopener\" target=\"_blank\">Esa traducci\u00f3n<\/a> a un \u201cmismo idioma\u201d permiti\u00f3, por primera vez, comparar poblaciones enteras de agujeros negros sin los sesgos que hab\u00edan entorpecido estudios anteriores. Con esa homogeneidad, el equipo pudo distinguir qu\u00e9 variable cambi\u00f3 realmente en el universo.<\/p>\n<figure class=\"AssetEmbedWrapper-iJvQnD cOWUYC asset-embed\">\n<div class=\"AssetEmbedAssetContainer-fnduJP iaVSwI asset-embed__asset-container\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset responsive-image\"><img decoding=\"async\" alt=\"Visi\u00f3n de rayos x de los c\u00famulos estelares Abell 478 y NGC 5044\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/sarmiento24h.com\/wp-content\/uploads\/2026\/03\/los-agujeros-negros-supermasivos-dejaron-de-crecer-tan-rapido-como-antes-por-fin-sabemos-por-que-3.jpg,c_limit\/deathstars-x-ray-optical-wide.jpg 120w, https:\/\/media.es.wired.com\/photos\/69c43206dfdff7846df7cf1f\/master\/w_240,c_limit\/deathstars-x-ray-optical-wide.jpg 240w, https:\/\/media.es.wired.com\/photos\/69c43206dfdff7846df7cf1f\/master\/w_320,c_limit\/deathstars-x-ray-optical-wide.jpg 320w, https:\/\/media.es.wired.com\/photos\/69c43206dfdff7846df7cf1f\/master\/w_640,c_limit\/deathstars-x-ray-optical-wide.jpg 640w, https:\/\/media.es.wired.com\/photos\/69c43206dfdff7846df7cf1f\/master\/w_960,c_limit\/deathstars-x-ray-optical-wide.jpg 960w, https:\/\/media.es.wired.com\/photos\/69c43206dfdff7846df7cf1f\/master\/w_1280,c_limit\/deathstars-x-ray-optical-wide.jpg 1280w, https:\/\/media.es.wired.com\/photos\/69c43206dfdff7846df7cf1f\/master\/w_1600,c_limit\/deathstars-x-ray-optical-wide.jpg 1600w\" sizes=\"100vw\" src=\"https:\/\/sarmiento24h.com\/wp-content\/uploads\/2026\/03\/los-agujeros-negros-supermasivos-dejaron-de-crecer-tan-rapido-como-antes-por-fin-sabemos-por-que-1.jpg\"><\/picture><\/span><\/div>\n<div class=\"CaptionWrapper-bpPcvW iDPSlt caption AssetEmbedCaption-eZIMNW gMgneI asset-embed__caption\" data-testid=\"caption-wrapper\" readability=\"6\"><span class=\"BaseText-fEwdHD CaptionText-cQpRdU kRTNAB hbiMYj caption__text\" readability=\"27\"><\/p>\n<p>Visi\u00f3n de rayos x de los c\u00famulos estelares Abell 478 y NGC 5044<\/p>\n<p><\/span><span class=\"BaseText-fEwdHD CaptionCredit-cUgOGk iQbGEh hRFzlA caption__credit\">NASA\/ESA\/JPL\/CalTech\/Herschel Space Telescope<\/span><\/div>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Desde hace m\u00e1s de dos d\u00e9cadas, los&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":83349,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_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},"jetpack_post_was_ever_published":false},"categories":[46],"tags":[],"class_list":["post-83348","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Los agujeros negros supermasivos dejaron de crecer tan r\u00e1pido como antes; 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