{"id":5968,"date":"2014-12-14T23:18:58","date_gmt":"2014-12-14T22:18:58","guid":{"rendered":"http:\/\/www.h-its.org\/?p=5968"},"modified":"2019-09-24T11:40:28","modified_gmt":"2019-09-24T09:40:28","slug":"millennium-galaxienkataloge","status":"publish","type":"post","link":"https:\/\/www.h-its.org\/de\/2014\/12\/14\/millennium-galaxienkataloge\/","title":{"rendered":"Millennium Galaxienkataloge"},"content":{"rendered":"\n<p>Zum Zeitpunkt ihrer Ver\u00f6ffentlichung im Jahr 2005 war die Millennium Simulation die gr\u00f6\u00dfte Simulation der Strukturbildung in der \u039bCDM Kosmologie. Sie benutzt 10<sup>10<\/sup>&nbsp;Teilchen zur Beschreibung der Verteilung der dunklen Materie in einer w\u00fcrfelf\u00f6rmigen&nbsp;Region von 500h<sup>\u22121<\/sup>Mpc Kantenl\u00e4nge und mit einer r\u00e4umlichen Aufl\u00f6sung von&nbsp;5h<sup>\u22121<\/sup>kpc. Die Anwendung von vereinfachten Modellierungstechniken auf die gespeicherten Ergebnisse der Rechnung&nbsp;erlaubt es, die Entstehung und Entwicklung von&nbsp;~10<sup>7<\/sup>&nbsp;Galaxien heller als die kleine Magellansche Wolke zu simulieren, und zwar flexibel f\u00fcr verschiedene Annahmen \u00fcber die beteiligten physikalischen Prozesse.<\/p>\n\n\n\n<p>Als Teil der Aktivit\u00e4ten der deutschen Initiative zum astrophysikalischen Virtuellen Observatorium (GAVO) hat das Millennium Team eine relationale Datenbank erstellt, die die detailierten Verschmelzungsgeschichten sowohl von Halos und Unterhalos in der Simulation speichert, sowie all der Galaxien, die sich in diesen Strukturen in zwei unabh\u00e4ngigen Modellen der Galaxienentstehung bilden. Ein Structured Query Language (SQL) Server wurde f\u00fcr diese Datenbanken aufgebaut. Dies erlaubt einen einfachen Zugriff auf viele Eigenschaften der Galaxien und der Halos, insbesondere auf die zeitlichen und r\u00e4umlichen Beziehungen zwischen ihnen. Diese Informationen werden in einer Tabellenform ausgegeben, die mit dem Standardformat des Virtuellen Observatoriums kompatibel ist.<\/p>\n\n\n\n<p>Diese Datenbankstrukturen stehen allen Benutzern offen und werden am Max-Planck Institut f\u00fcr Astrophysik bereitgestellt (mit einem gespiegelten Server an der Universit\u00e4t Durham in England). <\/p>\n\n\n\n<p>Die Adresse ist: <a href=\"http:\/\/www.mpa-garching.mpg.de\/millennium\">http:\/\/www.mpa-garching.mpg.de\/millennium<\/a><\/p>\n\n\n\n<p>Auf dieser Seite k\u00f6nnen interessierte Wissenschaftler SQL lernen und einfache Testabfragen auf einer kleinen Version der Millennium Simulation ausprobieren (mit einem Volumen von 1\/512 der vollen Simulation). Sie k\u00f6nnen dann ein Benutzerkonto beantragen, um \u00e4hnliche Anfragen auf der vollen Simulation auszuf\u00fchren. Die Seite beinhaltet auch eine Liste wissenschaftlicher Arbeiten, die die Millennium Simulation benutzt haben (mehr als 650 bis jetzt).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Zum Zeitpunkt ihrer Ver\u00f6ffentlichung im Jahr 2005 war die Millennium Simulation die gr\u00f6\u00dfte Simulation der Strukturbildung in der \u039bCDM Kosmologie. &#8230;<\/p>\n","protected":false},"author":6,"featured_media":29131,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"hits-research-group":[],"class_list":["post-5968","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gruppen-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Millennium Galaxienkataloge - HITS gGmbH<\/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.h-its.org\/de\/2014\/12\/14\/millennium-galaxienkataloge\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Millennium Galaxienkataloge - 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