{"id":3835,"date":"2013-09-03T00:00:00","date_gmt":"2013-09-02T22:00:00","guid":{"rendered":"https:\/\/www.ieec.cat\/the-dark-energy-survey-project-begins-its-five-year-mission-to-map-the-southern-sky-in-great-detail\/"},"modified":"2022-12-22T23:08:31","modified_gmt":"2022-12-22T22:08:31","slug":"the-dark-energy-survey-project-begins-its-five-year-mission-to-map-the-southern-sky-in-great-detail","status":"publish","type":"post","link":"https:\/\/www.ieec.cat\/en\/the-dark-energy-survey-project-begins-its-five-year-mission-to-map-the-southern-sky-in-great-detail\/","title":{"rendered":"The Dark Energy Survey project begins its five-year mission to map the southern sky in great detail"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; theme_builder_area=&#8221;post_content&#8221; _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; height=&#8221;114px&#8221; background_color=&#8221;&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243; title_text=&#8221;&#8221; background_image=&#8221;\/wp-content\/uploads\/2022\/04\/slider-corpo2.jpg&#8221;][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; theme_builder_area=&#8221;post_content&#8221; _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;||0px||false|false&#8221; custom_margin=&#8221;||0px||false|false&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243;][et_pb_row _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; type=&#8221;4_4&#8243; theme_builder_area=&#8221;post_content&#8221;][et_pb_text _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221; _dynamic_attributes=&#8221;content&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243; custom_margin=&#8221;0px||0px||false|false&#8221; custom_padding=&#8221;0px||0px||false|false&#8221;]@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF90aXRsZSIsInNldHRpbmdzIjp7ImJlZm9yZSI6IjxoMSBjbGFzcz1cImVudHJ5X3RpdGxlXCI+IiwiYWZ0ZXIiOiI8L2gxPiJ9fQ==@[\/et_pb_text][et_pb_text _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221; _dynamic_attributes=&#8221;content&#8221; custom_padding=&#8221;0px||0px||false|false&#8221; custom_margin=&#8221;0px||0px||false|false&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243;]@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9kYXRlIiwic2V0dGluZ3MiOnsiYmVmb3JlIjoiIiwiYWZ0ZXIiOiIiLCJkYXRlX2Zvcm1hdCI6ImN1c3RvbSIsImN1c3RvbV9kYXRlX2Zvcm1hdCI6IlktbS1kIEg6aTpzIn19@[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;0px||||false|false&#8221; custom_padding=&#8221;0px||||false|false&#8221; top_divider_color=&#8221;RGBA(255,255,255,0)&#8221; top_divider_height=&#8221;0px&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;][et_pb_row column_structure=&#8221;4_4&#8243; _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.ieec.cat\/wp-content\/uploads\/2022\/12\/1543421901_0a28e3cb5e3abf1fb6e8bbb882d8a07b_ctio_pano1_750_mr.jpg&#8221; alt=&#8221;The Dark Energy Survey project begins its five-year mission to map the southern sky in great detail&#8221; _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; title_text=&#8221;PR_Image1.png&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243; width=&#8221;600px&#8221; module_alignment=&#8221;center&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.14.8&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]- La C&aacute;mara de Energ&iacute;a Oscura DECam es el instrumento m&aacute;s poderoso construido para un cartografiado de esta &iacute;ndole. Con cada imagen instant&aacute;nea, ser&aacute; capaz de ver la luz de m&aacute;s de 100.000 galaxias a hasta 8 mil millones de a&ntilde;os luz de distancia.<br \/>\n&#8211; El cartografiado obtendr&aacute; im&aacute;genes en color de 300 millones de galaxias y 100.000 c&uacute;mulos de galaxias y, a su vez, descubrir&aacute; aproximadamente 4.000 nuevas supernovas.<\/p>\n<p>Barcelona, 03.09.2013<\/p>\n<p>Esta noche, cuando el sol se ponga en el horizonte, la c&aacute;mara digital m&aacute;s potente del mundo volver&aacute; a girar su ojo hacia el cielo. Esta noche, y durante cientos de noches en los pr&oacute;ximos cinco a&ntilde;os, un equipo de f&iacute;sicos y astr&oacute;nomos de todo el mundo, trabajando desde un observatorio en Chile, utilizar&aacute; esta extraordinaria m&aacute;quina para tratar de responder a algunas de las preguntas m&aacute;s fundamentales acerca de nuestro universo.<\/p>\n<p>El 31 de agosto es el d&iacute;a en que el Dark Energy Survey (DES) comenz&oacute; a operar oficialmente. Los cient&iacute;ficos del equipo de investigaci&oacute;n cartografiar&aacute;n de forma sistem&aacute;tica una octava parte del cielo (5000 grados cuadrados) con un detalle sin precedentes. El inicio del cartografiado es la culminaci&oacute;n de diez a&ntilde;os de planificaci&oacute;n, construcci&oacute;n y puesta a punto de la instrumentaci&oacute;n por parte de cient&iacute;ficos de 25 instituciones de seis pa&iacute;ses.<\/p>\n<p>El objetivo del estudio es averiguar por qu&eacute; la expansi&oacute;n del universo se est&aacute; acelerando, en lugar de frenarse debido a la gravedad, as&iacute; como desentra&ntilde;ar el origen de la misteriosa energ&iacute;a oscura, la fuerza que creemos que es la causa de la aceleraci&oacute;n.<\/p>\n<p>&ldquo;Con el inicio del cartografiado, el trabajo de m&aacute;s de 200 colaboradores empieza a dar sus frutos&rdquo;, afirma el director de DES Josh Frieman, del Laboratorio del Acelerador Nacional Fermi (Fermilab) del Departamento de Energ&iacute;a de EE.UU.. &ldquo;Es un momento emocionante en la cosmolog&iacute;a, cuando podemos utilizar las observaciones del universo distante para mostrarnos la naturaleza fundamental de la materia, energ&iacute;a, espacio y tiempo.&rdquo;<\/p>\n<p>La herramienta principal del cartografiado es la C&aacute;mara de Energ&iacute;a Oscura (DECam), una c&aacute;mara digital de 570 megap&iacute;xeles construida en el laboratorio Fermilab en Batavia, Illinois, y montada en el telescopio Victor M. Blanco, de 4 metros, en el Observatorio Interamericano de Cerro Tololo (de la Fundaci&oacute;n Nacional de Ciencia de Estados Unidos) en Chile. La c&aacute;mara incluye 5 lentes construidas de forma muy precisa, donde una de ellas llega a tener casi un metro de di&aacute;metro, y que, en conjunto, proporcionan im&aacute;genes extremadamente n&iacute;tidas sobre la totalidad de su campo de visi&oacute;n.<\/p>\n<p>La c&aacute;mara DECam es el instrumento m&aacute;s poderoso construido para un cartografiado de esta &iacute;ndole. Con cada imagen instant&aacute;nea, ser&aacute; capaz de ver la luz de m&aacute;s de 100.000 galaxias a hasta 8 mil millones de a&ntilde;os luz de distancia.<\/p>\n<p>La construcci&oacute;n de esta c&aacute;mara es el resultado de una colaboraci&oacute;n internacional, en la cual han tenido una participaci&oacute;n destacada el ICE (CSIC\/IEEC) y el IFAE de Barcelona y el CIEMAT, con la contribuci&oacute;n de la UAM, de Madrid. El consorcio espa&ntilde;ol ha jugado un papel clave en la construcci&oacute;n y puesta en funcionamiento de DECam, dise&ntilde;ando, construyendo y verificando la electr&oacute;nica de alta velocidad que realiza la lectura y control de los detectores CCDs de la c&aacute;mara. Adem&aacute;s ha dise&ntilde;ado e implementado el software que permite que el telescopio apunte con precisi&oacute;n. Tambi&eacute;n ha producido simulaciones a gran escala del universo que permiten desarrollar y probar los m&eacute;todos de an&aacute;lisis cient&iacute;fico e interpretar las observaciones.<\/p>\n<p>&ldquo;Es una gran satisfacci&oacute;n ver c&oacute;mo el trabajo de tantos a&ntilde;os finalmente se ha materializado en esta c&aacute;mara tan potente y podemos empezar ahora a cartografiar el universo para investigar sus secretos&rdquo;, comenta Francisco Javier Castander del Instituto de Ciencias del Espacio (CSIC\/IEEC).<\/p>\n<p>En cinco a&ntilde;os, el cartografiado obtendr&aacute; im&aacute;genes en color de 300 millones de galaxias y 100.000 c&uacute;mulos de galaxias y descubrir&aacute; 4.000 nuevas supernovas, muchas de las cuales ocurrieron cuando el universo ten&iacute;a la mitad de su tama&ntilde;o actual. Los datos recogidos ser&aacute;n analizados en el Centro Nacional para Aplicaciones de Supercomputaci&oacute;n (NCSA) de la Universidad de Illinois en Urbana-Champaign, y luego enviados a los cient&iacute;ficos de la colaboraci&oacute;n y el p&uacute;blico.<\/p>\n<p>Con las observaciones obtenidas no ser&aacute; posible ver de forma directa la energ&iacute;a oscura. Sin embargo, mediante el estudio de la expansi&oacute;n del universo y el crecimiento de la estructura a gran escala con el tiempo, el estudio proporcionar&aacute; a los cient&iacute;ficos las mediciones m&aacute;s precisas, hasta la fecha, de las propiedades de la energ&iacute;a oscura.<\/p>\n<p>El cartografiado utilizar&aacute; cuatro m&eacute;todos para encontrar evidencias de la energ&iacute;a oscura:<\/p>\n<p>&#8211; Conteo de c&uacute;mulos de galaxias. Mientras que la gravedad atrae la masa para formar galaxias, la energ&iacute;a oscura la repele separ&aacute;ndola. DECam ver&aacute; la luz de 100.000 c&uacute;mulos de galaxias que se encuentran a miles de millones de a&ntilde;os luz de distancia. Contando el n&uacute;mero de c&uacute;mulos de galaxias en diferentes &eacute;pocas permite estudiar esta competici&oacute;n c&oacute;smica entre la gravedad y la energ&iacute;a oscura<br \/>\n&#8211; Medici&oacute;n de supernovas. Una supernova es una estrella que explota y puede llegar a ser tan brillante como toda una galaxia, compuesta de billones de estrellas. Midiendo su brillo desde la Tierra, los cient&iacute;ficos pueden saber a qu&eacute; distancia se encuentran. Esta informaci&oacute;n puede ser utilizada para determinar la rapidez con que el universo ha estado expandi&eacute;ndose desde la explosi&oacute;n de la estrella. El cartografiado Dark Energy Survey pretende descubrir 4.000 de estas supernovas, las cuales explotaron hace miles de millones de a&ntilde;os en galaxias que se encuentran a miles de millones de a&ntilde;os luz de distancia.<br \/>\n&#8211; Estudio de la curvatura de la luz. Cuando la luz de las galaxias distantes que viaja por el espacio se encuentra con la materia oscura, tiende a curvarse alrededor de la misma, haciendo que las galaxias aparezcan distorsionadas en las im&aacute;genes que se obtienen con el telescopio. El estudio medir&aacute; las formas de 200 millones de galaxias, para as&iacute; revelar la batalla que existe entre la gravedad y la energ&iacute;a oscura al dar forma a las acumulaciones de materia oscura en el espacio.<br \/>\n&#8211; Uso de ondas sonoras para elaborar un mapa a gran escala de la expansi&oacute;n del universo con el tiempo. Cuando el universo ten&iacute;a menos de 400.000 a&ntilde;os, la interacci&oacute;n entre la materia y la luz gener&oacute; una serie de ondas sonoras viajando a casi dos tercios de la velocidad de la luz. Estas ondas dejaron su huella en la distribuci&oacute;n de galaxias en el universo. El Dark Energy Survey medir&aacute; las posiciones en el espacio de 300 millones de galaxias para encontrar esa huella impresa en la distribuci&oacute;n de las galaxias y utilizar la informaci&oacute;n que proporciona para inferir la historia de la expansi&oacute;n c&oacute;smica.<\/p>\n<p>&ldquo;La combinaci&oacute;n de estas cuatro t&eacute;cnicas hacen que el Dark Energy Survey tenga una capacidad &uacute;nica en el mundo para ayudarnos a entender el misterio de la naturaleza de la energ&iacute;a oscura, que es la clave para descubrir cu&aacute;l ser&aacute; el destino final del universo&rdquo;, explica Ramon Miquel, del Institut de F&iacute;sica d&rsquo;Altes Energies (IFAE).<\/p>\n<p>El proyecto del &ldquo;Dark Energy Survey&rdquo; est&aacute; financiado por la Oficina de Ciencia del Departamento de Energia y la Fundaci&oacute;n Nacional de Ciencia, ambas de EE.UU, los organismos de financiaci&oacute;n en Espa&ntilde;a, el Reino Unido, Brasil, Alemania y Suiza, as&iacute; como financiaci&oacute;n de las instituciones participantes.<\/p>\n<p>M&aacute;s informaci&oacute;n sobre el proyecto Dark Energy Survey, incluida la lista de instituciones participantes, est&aacute; disponible en la siguiente p&aacute;gina web: <a href=\"http:\/\/www.darkenergysurvey.org\" rel=\"nofollow\">http:\/\/www.darkenergysurvey.org<\/a>.<\/p>\n<p>Fotos, videos e informaci&oacute;n adicional:<br \/>\n&#8211; <a href=\"https:\/\/www.darkenergysurvey.org\" rel=\"nofollow\">https:\/\/www.darkenergysurvey.org<\/a><br \/>\n&#8211; <a href=\"http:\/\/fnal.gov\/pub\/presspass\/press_releases\/2012\/DES-DECam-201212-images.html\" rel=\"nofollow\">http:\/\/fnal.gov\/pub\/presspass\/press_releases\/2012\/DES-DECam-201212-images.html<\/a><br \/>\n&#8211; <a href=\"http:\/\/www.noao.edu\/news\/2012\/pr1208.php\" rel=\"nofollow\">http:\/\/www.noao.edu\/news\/2012\/pr1208.php<\/a><\/p>\n<p>Panorama photo of CTIO, Newsletter 90. Credit: T. Abbott<\/p>\n<p>Imagen: El telescopio Victor Blanco (c&uacute;pula gris) en Chile. Cr&egrave;dit: T. Abbott and NOAO\/AURA\/NSF.<\/p>\n<p>Informaci&oacute;n de Contacto:<\/p>\n<p>Francisco Castander<br \/>\nInstitut de Ciencies de l&rsquo;Espai (IEEC-CSIC)<br \/>\nE-mail. <a href=\"mailto:fjc@ieec.uab.es\">fjc@ieec.uab.es<\/a><br \/>\nTel: +34 93 581 4367<\/p>\n<p>Enrique Gazta&ntilde;aga<br \/>\nInstitut de Ciencies de l&rsquo;Espai (IEEC-CSIC)<br \/>\nE-mail: <a href=\"mailto:gazta@ieec.uab.es\">gazta@ieec.uab.es<\/a><br \/>\nTel:+34 93 581 4354 [NOT TRANSLATED][\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8211; La C&aacute;mara de Energ&iacute;a Oscura DECam es el instrumento m&aacute;s poderoso construido para un cartografiado de esta &iacute;ndole. Con cada imagen instant&aacute;nea, ser&aacute; capaz de ver la luz de m&aacute;s de 100.000 galaxias a hasta 8 mil millones de a&ntilde;os luz de distancia. &#8211; El cartografiado obtendr&aacute; im&aacute;genes en color de 300 millones de [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":3831,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"2880","footnotes":""},"categories":[74,98],"tags":[],"class_list":["post-3835","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-science"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The Dark Energy Survey project begins its five-year mission to map the southern sky in great detail - IEEC<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ieec.cat\/en\/the-dark-energy-survey-project-begins-its-five-year-mission-to-map-the-southern-sky-in-great-detail\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Dark Energy Survey project begins its five-year mission to map the southern sky in great detail - IEEC\" \/>\n<meta property=\"og:description\" content=\"- La C&aacute;mara de Energ&iacute;a Oscura DECam es el instrumento m&aacute;s poderoso construido para un cartografiado de esta &iacute;ndole. 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