{"id":227790,"date":"2026-05-21T22:26:59","date_gmt":"2026-05-21T22:26:59","guid":{"rendered":"http:\/\/6a0f41e88ca016592f1ab80c"},"modified":"2026-05-21T22:26:59","modified_gmt":"2026-05-21T22:26:59","slug":"parece-que-encontramos-los-restos-de-una-estrella-primigenia-uno-de-los-objetos-mas-esquivos-del-universo","status":"publish","type":"post","link":"https:\/\/sarmiento24h.com\/?p=227790","title":{"rendered":"Parece que encontramos los restos de una estrella primigenia, uno de los objetos m\u00e1s esquivos del universo"},"content":{"rendered":"<p>Una de las m\u00e1s grandes sorpresas que ha arrojado el telescopio espacial James Webb han sido unos diminutos, pero brillantes puntos rojos en el universo primitivo. Su luz proviene de los primeros cientos de millones de a\u00f1os posteriores al Big Bang, una franja en la cronolog\u00eda del universo de la que todav\u00eda sabemos muy poco.<\/p>\n<p><a href=\"https:\/\/es.wired.com\/articulos\/los-misteriosos-puntos-rojos-que-el-james-webb-descubrio-en-el-universo-primitivo-y-que-no-deberian-existir\">Los puntos rojos son una anomal\u00eda<\/a>. Son demasiado peque\u00f1os para ser galaxias tempranas y no muestran se\u00f1ales de actividad en rayos X, algo t\u00edpico de agujeros negros supermasivos que est\u00e1n devorando materia. Los modelos actuales de formaci\u00f3n estelar tampoco pueden explicarlos satisfactoriamente. Por ello, comienzan a surgir hip\u00f3tesis ex\u00f3ticas. Por ejemplo, tal vez son estrellas alimentadas por agujeros negros, una idea todav\u00eda especulativa pero que intenta llenar los huecos que deja la f\u00edsica conocida.<\/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=\"Puntos rojos diminutos 600 millones de los despus del Big Bang.\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/688a65aa143b4aaeb4172f30\/master\/w_120,c_limit\/STScI-01JFJZNJSD2VR3V9ME4RTRG2RD.png 120w, https:\/\/media.es.wired.com\/photos\/688a65aa143b4aaeb4172f30\/master\/w_240,c_limit\/STScI-01JFJZNJSD2VR3V9ME4RTRG2RD.png 240w, https:\/\/media.es.wired.com\/photos\/688a65aa143b4aaeb4172f30\/master\/w_320,c_limit\/STScI-01JFJZNJSD2VR3V9ME4RTRG2RD.png 320w, https:\/\/media.es.wired.com\/photos\/688a65aa143b4aaeb4172f30\/master\/w_640,c_limit\/STScI-01JFJZNJSD2VR3V9ME4RTRG2RD.png 640w, https:\/\/media.es.wired.com\/photos\/688a65aa143b4aaeb4172f30\/master\/w_960,c_limit\/STScI-01JFJZNJSD2VR3V9ME4RTRG2RD.png 960w, https:\/\/media.es.wired.com\/photos\/688a65aa143b4aaeb4172f30\/master\/w_1280,c_limit\/STScI-01JFJZNJSD2VR3V9ME4RTRG2RD.png 1280w, https:\/\/media.es.wired.com\/photos\/688a65aa143b4aaeb4172f30\/master\/w_1600,c_limit\/STScI-01JFJZNJSD2VR3V9ME4RTRG2RD.png 1600w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/688a65aa143b4aaeb4172f30\/master\/w_1600%2Cc_limit\/STScI-01JFJZNJSD2VR3V9ME4RTRG2RD.png\"><\/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>Estos son algunos de los puntos rojos que han aparecido en las observaciones del universo profundo.<\/p>\n<p><\/span><span class=\"BaseText-fEwdHD CaptionCredit-cUgOGk iQbGEh hRFzlA caption__credit\">NASA, ESA, CSA, STScI, Dale Kocevski (Colby College)<\/span><\/div>\n<\/figure>\n<p>Sin embargo, es probable que la explicaci\u00f3n sea m\u00e1s simple, aunque igual de sorprendente. Algunos de esos puntos rojos podr\u00edan ser supernovas originadas por las <a href=\"https:\/\/es.wired.com\/articulos\/las-primeras-estrellas-del-universo-son-el-moby-dick-de-la-astronomia-y-parece-que-acabamos-de-encontrar-su-rastro\">primeras estrellas que se formaron en el universo<\/a>, o incluso enanas marrones ultrafr\u00edas dentro de nuestra propia galaxia.<\/p>\n<h2>En busca del \u201cMoby Dick\u201d c\u00f3smico<\/h2>\n<p>Los astr\u00f3nomos apodan a las estrellas primordiales como el \u201cMoby Dick\u201d de la astronom\u00eda, en referencia a la m\u00edtica ballena blanca. Estas estrellas posiblemente alcanzaron masas decenas o cientos de veces mayores que la del Sol, ardieron a temperaturas extremas incluso para est\u00e1ndares c\u00f3smicos, nacieron \u201cpuras\u201d, es decir, libres de metales, fusionando hidr\u00f3geno y helio, y actualmente todas las que se formaron, con toda seguridad, ya murieron.<\/p>\n<p>Pero telescopios avanzado como el James Webb tienen el potencial de acceder a esa parte del universo temprano donde las primeras estrellas vivieron. La clave est\u00e1 en saber identificar sus firmas. Y es aqu\u00ed donde brilla un <a data-offer-url=\"https:\/\/arxiv.org\/abs\/2601.07374v3\" class=\"external-link\" data-event-click=\"{&quot;element&quot;:&quot;ExternalLink&quot;,&quot;outgoingURL&quot;:&quot;https:\/\/arxiv.org\/abs\/2601.07374v3&quot;}\" href=\"https:\/\/arxiv.org\/abs\/2601.07374v3\" rel=\"nofollow noopener\" target=\"_blank\">reciente art\u00edculo cient\u00edfico<\/a> en espera de revisi\u00f3n por pares.<\/p>\n<p>Los autores analizaron la posibilidad de que uno de estos puntos rojos detectados, nombrado Capotauro, muestre indicios de una explosi\u00f3n estelar detonada por la muerte de una estrella primordial.<\/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:\/\/media.es.wired.com\/photos\/6983ad7ca192725251246617\/master\/w_120,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:\/\/media.es.wired.com\/photos\/6983ad7ca192725251246617\/master\/w_775%2Cc_limit\/primordial-black-hole-still-4k-small.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<h2>Capotauro parece una explosi\u00f3n, m\u00e1s que una galaxia<\/h2>\n<p>Los cient\u00edficos encontraron a Capotauro en 2022 como un <a href=\"https:\/\/es.wired.com\/articulos\/estas-extranas-galaxias-recien-descubiertas-en-el-universo-temprano-podrian-ser-la-pieza-clave-de-un-rompecabezas-cosmico\">objeto casi imperceptible<\/a>. 800 d\u00edas despu\u00e9s, el punto rojo aument\u00f3 su brillo cerca de un 20%. Mientras tanto, Capotauro solo es visible en los filtros m\u00e1s rojos del telescopio, pero desaparece cuando se observa con filtros m\u00e1s azules. Las galaxias antiguas no se comportan as\u00ed. Las supernovas s\u00ed.<\/p>\n<p>Al comparar los datos con modelos de supernovas te\u00f3ricas, encontraron una coincidencia llamativa. Capotauro encaja casi a la perfecci\u00f3n con la explosi\u00f3n de una estrella primordial de unas 250 veces la masa del Sol, una de las llamadas supernovas de inestabilidad de pares. Estas explosiones son tan poderosas que, vistas desde la Tierra, pueden seguir brillando durante a\u00f1os, porque la expansi\u00f3n del universo estira tanto la luz como el paso del tiempo.<\/p>\n<p>El espectro (la huella digital de la luz) tambi\u00e9n coincide. Capotauro muestra una pendiente ascendente hacia longitudes de onda m\u00e1s largas y se\u00f1ales d\u00e9biles de elementos como el magnesio, justo lo que se espera de una estrella masiva que acaba de fabricar esos elementos en su interior antes de estallar.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Una de las m\u00e1s grandes sorpresas que&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":227791,"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-227790","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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