{"id":6367,"date":"2025-12-20T15:35:59","date_gmt":"2025-12-20T18:35:59","guid":{"rendered":"https:\/\/impactocastex.com.ar\/?p=6367"},"modified":"2025-12-20T15:35:59","modified_gmt":"2025-12-20T18:35:59","slug":"la-nasa-detecto-ineditas-burbujas-de-rayos-gamma-de-un-supercumulo-estelar-en-la-via-lactea","status":"publish","type":"post","link":"https:\/\/impactocastex.com.ar\/?p=6367","title":{"rendered":"La NASA detect\u00f3 in\u00e9ditas burbujas de rayos gamma de un superc\u00famulo estelar en la V\u00eda L\u00e1ctea"},"content":{"rendered":"<p>El <b>Telescopio Espacial Fermi de la NASA<\/b> logr\u00f3 <a href=\"https:\/\/science.nasa.gov\/missions\/fermi\/nasas-fermi-spots-young-star-cluster-blowing-gamma-ray-bubbles\/\" target=\"_blank\" rel=\"noreferrer\" title=\"https:\/\/science.nasa.gov\/missions\/fermi\/nasas-fermi-spots-young-star-cluster-blowing-gamma-ray-bubbles\/\">un descubrimiento in\u00e9dito<\/a> al detectar una <b>emanaci\u00f3n de gas<\/b> de un c\u00famulo de estrellas j\u00f3venes en nuestra galaxia por primera vez, la cual se manifest\u00f3 como una <b>burbuja de rayos gamma<\/b>. Este hallazgo, crucial para comprender la evoluci\u00f3n del universo, proviene del superc\u00famulo estelar <b>Westerlund 1<\/b>, situado a unos 12 mil a\u00f1os luz en la constelaci\u00f3n de Ara.<\/p>\n<p>Westerlund 1, <a href=\"https:\/\/www.lanacion.com.ar\/agencias\/westerlund-1-la-fabrica-de-estrellas-mas-cercana-a-la-tierra-nid10062024\/\" target=\"_blank\" rel=\"noreferrer\" title=\"https:\/\/www.lanacion.com.ar\/agencias\/westerlund-1-la-fabrica-de-estrellas-mas-cercana-a-la-tierra-nid10062024\/\">el superc\u00famulo estelar m\u00e1s cercano<\/a>, masivo y luminoso de la V\u00eda L\u00e1ctea, permanece <b>oculto por densas nubes de polvo<\/b>. Su emanaci\u00f3n se extiende por debajo del plano gal\u00e1ctico y contiene part\u00edculas de alta velocidad conocidas como rayos c\u00f3smicos. La investigaci\u00f3n fue <a href=\"https:\/\/www.nature.com\/articles\/s41467-025-65592-4\" target=\"_blank\" rel=\"noreferrer\" title=\"https:\/\/www.nature.com\/articles\/s41467-025-65592-4\">realizada por <i>Nature Communications<\/i><\/a> y estuvo liderada por <b>Marianne Lemoine-Goumard <\/b>de la Universidad de Burdeos (Francia), junto con <b>Lucia H\u00e4rer<\/b> y <b>Lars Mohrmann<\/b> del Instituto Max Planck de F\u00edsica Nuclear en Heidelberg (Alemania).<\/p>\n<p>Lemoine-Goumard afirm\u00f3 que \u201ccomprender las emanaciones de rayos c\u00f3smicos es crucial para <b>entender mejor la evoluci\u00f3n a largo plazo de la V\u00eda L\u00e1ctea<\/b>\u201d. Seg\u00fan la astrof\u00edsica, \u201cestas part\u00edculas transportan gran parte de la energ\u00eda liberada dentro de los c\u00famulos y podr\u00edan contribuir a <b>impulsar los vientos gal\u00e1cticos<\/b>, <b>regular la formaci\u00f3n estelar<\/b> y <b>distribuir elementos qu\u00edmicos<\/b> dentro de la galaxia\u201d.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/resizer.glanacion.com\/resizer\/v2\/YPVNDLHE2FHX7MF4BYIHZOFXPI.jpg?auth=24ec9f873ed2f04b50f2ee4727c5d46a3ded4d531e8ebd2863262cf222ec6086&amp;smart=true&amp;width=2000&amp;height=1333\" alt=\"Con una imagen ilustrativa, revelaron la ubicaci\u00f3n de Westerlund 1 con respecto a nuestro Sol\" height=\"1333\" width=\"2000\" \/><\/p>\n<p>Los <a href=\"https:\/\/www.lanacion.com.ar\/agencias\/muchos-cumulos-estelares-cercanos-proceden-de-solo-tres-aposfamiliasapos-nid10062024\/\" target=\"_blank\" rel=\"noreferrer\" title=\"https:\/\/www.lanacion.com.ar\/agencias\/muchos-cumulos-estelares-cercanos-proceden-de-solo-tres-aposfamiliasapos-nid10062024\/\">superc\u00famulos estelares<\/a> como Westerlund 1 son colosales, con <b>m\u00e1s de 10 mil veces la masa solar<\/b> y un n\u00famero excepcional de estrellas masivas y raras. Cient\u00edficos creen que las explosiones de supernovas y los vientos estelares dentro de estos c\u00famulos <b>expulsan el gas ambiental<\/b>, lo que acelera los rayos c\u00f3smicos a velocidades cercanas a la de la luz. Estas part\u00edculas, en su mayor\u00eda n\u00facleos de hidr\u00f3geno, son <b>dif\u00edciles de rastrear<\/b> directamente debido a su carga el\u00e9ctrica y la interacci\u00f3n con campos magn\u00e9ticos.<\/p>\n<p>Es en este momento donde radica la importancia de <a href=\"https:\/\/www.lanacion.com.ar\/agencias\/ansa-ciencia-el-mayor-observatorio-de-rayos-gamma-en-el-desierto-chileno-nid18122025\/\" target=\"_blank\" rel=\"noreferrer\" title=\"https:\/\/www.lanacion.com.ar\/agencias\/ansa-ciencia-el-mayor-observatorio-de-rayos-gamma-en-el-desierto-chileno-nid18122025\/\">los rayos gamma<\/a>. Como la forma de luz de mayor energ\u00eda, viajan en l\u00ednea recta y se producen cuando <b>los rayos c\u00f3smicos interact\u00faan con la materia<\/b>. Esto los convierte en indicadores clave de la actividad de los rayos c\u00f3smicos. La cercan\u00eda y brillo de Westerlund 1 lo hacen \u201c<b>un objeto de estudio excepcional<\/b>\u201d, pese a que la mayor\u00eda de las observaciones de rayos gamma en c\u00famulos estelares tienen resoluci\u00f3n limitada.<\/p>\n<p>En 2022, el Sistema Espectrosc\u00f3pico de Altas Energ\u00edas en Namibia ya hab\u00eda detectado un anillo distintivo de rayos gamma alrededor de Westerlund 1, con <b>energ\u00edas billones de veces superiores a la luz visible<\/b>. Este hallazgo motiv\u00f3 al equipo de Lemoine-Goumard a <b>analizar casi dos d\u00e9cadas de datos<\/b> del <a href=\"https:\/\/www.lanacion.com.ar\/agencias\/los-cientificos-podrian-haber-detectado-materia-oscura-despues-de-casi-100-anos-nid26112025\/\" target=\"_blank\" rel=\"noreferrer\" title=\"https:\/\/www.lanacion.com.ar\/agencias\/los-cientificos-podrian-haber-detectado-materia-oscura-despues-de-casi-100-anos-nid26112025\/\">Telescopio Espacial Fermi de la NASA<\/a>, que observa energ\u00edas ligeramente inferiores (millones a miles de millones de veces la energ\u00eda de la luz visible).<\/p>\n<figure><video height=\"1280\" width=\"720\" poster=\"https:\/\/cdn.jwplayer.com\/v2\/media\/KVohLA24\/poster.jpg?width=720\" preload=\"none\"><\/video><figcaption>La NASA mostr\u00f3 las im\u00e1genes reales sobre Westerlund 1, oculto por densas nubes de polvo<\/figcaption><\/figure>\n<p>La sensibilidad y resoluci\u00f3n de Fermi permitieron a los investigadores filtrar otras fuentes de rayos gamma, como <b>p\u00falsares, radiaci\u00f3n de fondo y la emisi\u00f3n<\/b> del propio superc\u00famulo estelar. El resultado fue la revelaci\u00f3n de una burbuja de rayos gamma que se extiende por <b>m\u00e1s de 650 a\u00f1os luz<\/b> desde el c\u00famulo, proyect\u00e1ndose <b>por debajo del plano de la V\u00eda L\u00e1ctea<\/b>. Este flujo de salida es aproximadamente 200 veces mayor que el propio Westerlund 1.<\/p>\n<p>Los investigadores lo describieron como un <b>flujo de salida naciente o en etapa temprana<\/b>, generado recientemente por las estrellas masivas j\u00f3venes del c\u00famulo. Se expande <b>asim\u00e9tricamente<\/b>, ya que sigue la trayectoria de menor resistencia hacia una zona de menor densidad bajo el disco gal\u00e1ctico, y se espera que con el tiempo <b>fluya hacia el halo gal\u00e1ctico<\/b>.<\/p>\n<p>Lucia H\u00e4rer se\u00f1al\u00f3 los pr\u00f3ximos pasos de la investigaci\u00f3n: \u201cUno de los pr\u00f3ximos pasos es <b>modelar c\u00f3mo viajan los rayos c\u00f3smicos<\/b> a trav\u00e9s de esta distancia y c\u00f3mo crean un <b>espectro de energ\u00eda de rayos gamma cambiante<\/b>\u201d. Agreg\u00f3 el inter\u00e9s en \u201cbuscar caracter\u00edsticas similares en otros c\u00famulos estelares\u201d, aunque reconoci\u00f3 la fortuna de contar con Westerlund 1 por ser \u201c<b>muy masivo, brillante y cercano<\/b>\u201d.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/resizer.glanacion.com\/resizer\/v2\/VMDH27WTYREQ5JODDWF6LXHVRU.jpg?auth=a537fb40f091bf72b5ca1d1e3bb1fbd32e606f573a196cc0bb66020d18ed4241&amp;smart=true&amp;width=1678&amp;height=2000\" alt=\"El tama\u00f1o masivo de Westerlund 1 genera expectativa entre los investigadores\" height=\"2000\" width=\"1678\" \/><\/p>\n<p><b>Elizabeth Hays<\/b>, cient\u00edfica del proyecto Fermi en el Centro de Vuelo Espacial Goddard de la NASA, subray\u00f3 la trascendencia de la misi\u00f3n: \u201cDesde que comenz\u00f3 a operar hace 17 a\u00f1os, este Telescopio Espacial sigui\u00f3 avanzando en <b>nuestra comprensi\u00f3n del universo<\/b> que nos rodea. El cielo de rayos gamma <b>contin\u00faa asombr\u00e1ndonos<\/b>\u201d.<\/p>\n<p>\u200bAstr\u00f3nomos utilizaron el Telescopio Espacial Fermi y rastrearon por primera vez una emanaci\u00f3n de gas de una agrupaci\u00f3n de estrellas j\u00f3venes; esto revela claves sobre la evoluci\u00f3n de nuestra galaxia\u00a0\u00a0<\/p>","protected":false},"excerpt":{"rendered":"<p>El Telescopio Espacial Fermi de la NASA logr\u00f3 un descubrimiento in\u00e9dito al detectar una emanaci\u00f3n&#8230;<\/p>\n","protected":false},"author":1,"featured_media":6368,"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":[89],"tags":[],"class_list":["post-6367","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nacionales"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>La NASA detect\u00f3 in\u00e9ditas burbujas de rayos gamma de un superc\u00famulo estelar en la V\u00eda L\u00e1ctea -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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