{"id":43563,"date":"2020-12-08T19:28:30","date_gmt":"2020-12-08T18:28:30","guid":{"rendered":"https:\/\/www.h-its.org\/de\/?p=43563"},"modified":"2020-12-09T10:32:18","modified_gmt":"2020-12-09T09:32:18","slug":"erc-synergy-grant-ain","status":"publish","type":"post","link":"https:\/\/www.h-its.org\/de\/2020\/12\/08\/erc-synergy-grant-ain\/","title":{"rendered":"Das Universum neu vermessen"},"content":{"rendered":"\n

Das Heidelberger Institut f\u00fcr Theoretische Studien (HITS) ist am ERC Synergy Grant \u201cUniverScale\u201d beteiligt. Ein internationales Team aus Polen, Frankreich Chile und Deutschland arbeitet mit einer Kombination aus verschiedenen Methoden daran, die Entfernungen zwischen den Galaxien neu zu bestimmen.<\/strong><\/p>\n\n\n\n

\"\"<\/a>
Kai Polsterer, Gruppenleiter Astroinformatik (Foto: HITS\/Keskin)<\/figcaption><\/figure><\/div>\n\n\n\n

Eines der schwierigsten Probleme in der Astronomie ist die Messung von Entfernungen im Universum. Die Kenntnis der Abst\u00e4nde von Galaxien ist f\u00fcr viele astrophysikalische Untersuchungen von grundlegender Bedeutung. Der Europ\u00e4ische Forschungsrat (ERC) bewilligte jetzt einen ERC Synergy Grant in H\u00f6he von 13,9 Millionen Euro f\u00fcr das  \u201eUniverScale\u201c-Projekt<\/a> zur Neuvermessung des Universums.  An dem internationalen Projekt mit dem Titel \u201eSub-percent calibration of the extragalactic distance scale in the era of big surveys\u201d ist neben den Projektleitern aus Polen, Frankreich und Chile auch das HITS als sogenannter \u201eBeneficiary\u201c beteiligt.<\/p>\n\n\n\n

Die Astroinformatik-Gruppe<\/a> unter der Leitung von Kai Polsterer befasst sich in diesem Projekt mit besonders weit entfernten Galaxien aus der Fr\u00fchzeit des Universums, vor ungef\u00e4hr 12 Milliarden Jahren. Sie bringt dabei ihre statistische Expertise mit der Expertise des Astrophysikers Francisco Pozo Nu\u00f1ez im \u201eReverberation Mapping\u201c zusammen, einer zusammen mit dem HITS neu entwickelten Methode zur Berechnung der Masse von Schwarzen L\u00f6chern, die hier f\u00fcr die Kartierung der Galaxien eingesetzt wird. Daf\u00fcr bewilligte der ERC 750.000 Euro.<\/p>\n\n\n\n

Die Galaxien des fr\u00fchen Universums leuchten aufgrund ihrer massereichen, aktiven, galaktischen Kerne (\u201eactive galactic nuclei\u201c), zu denen meistens ein Schwarzes Loch geh\u00f6rt, meist sehr stark. Die Astroinformatik-Gruppe entwickelt gemeinsam mit Francisco Pozo Nu\u00f1ez die \u201eReverberation Mapping\u201c-Methode weiter. Damit wollen die Forscher\/-innen die Lichtlaufzeit oder „Echos“ absch\u00e4tzen, die aus verschiedenen Regionen in der Akkretionsscheibe derart energiereicher Galaxien stammen. Der Fluss der supermassereichen Schwarzen L\u00f6cher in Kombination mit den Echos des Lichts liefert eine sehr hohe Pr\u00e4zision und eine v\u00f6llig unabh\u00e4ngige Sch\u00e4tzung der Entfernungen zu diesen Galaxien. Die Entfernungen erm\u00f6glichen es, die Geschichte des Universums bis heute zu untersuchen. Diese Untersuchungen k\u00f6nnen dabei helfen, die Eigenschaften der sogenannten \u201eDunklen Energie\u201c n\u00e4her zu bestimmen.<\/p>\n\n\n\n

Medienkontakt:<\/strong>
Dr. Peter Saueressig
Head of Communications
Heidelberger Institut f\u00fcr Theoretische Studien (HITS)
Tel +49-6221-533-245
peter.saueressig@h-its.org<\/a><\/p>\n\n\n\n

Wissenschaftlicher Kontakt:<\/strong>
Dr. Kai Polsterer <\/a>
Astroinformatics Group (AIN)
Heidelberger Institut f\u00fcr Theoretische Studien (HITS)<\/p>\n","protected":false},"excerpt":{"rendered":"

Das Heidelberger Institut f\u00fcr Theoretische Studien (HITS) ist am ERC Synergy Grant \u201cUniverScale\u201d beteiligt. Ein internationales Team aus Polen, Frankreich …<\/p>\n","protected":false},"author":58,"featured_media":38881,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[95,1],"hits-research-group":[1277],"class_list":["post-43563","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-institutsnews","category-gruppen-news","hits-research-group-ain-de"],"acf":[],"yoast_head":"\nDas Universum neu vermessen - 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\/2020\/12\/08\/erc-synergy-grant-ain\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Das Universum neu vermessen - HITS gGmbH\" \/>\n<meta property=\"og:description\" content=\"Das Heidelberger Institut f\u00fcr Theoretische Studien (HITS) ist am ERC Synergy Grant \u201cUniverScale\u201d beteiligt. 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