{"id":2023,"date":"2024-01-24T09:32:12","date_gmt":"2024-01-24T00:32:12","guid":{"rendered":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/?p=2023"},"modified":"2024-01-24T09:32:12","modified_gmt":"2024-01-24T00:32:12","slug":"2024-01-31-2","status":"publish","type":"post","link":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/2024\/01\/24\/2024-01-31-2\/","title":{"rendered":"2024-01-31"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-bright-blue-color has-text-color\">Origin of high-ionization lines found in extremely metal poor galaxies.<\/h2>\n\n\n\n<p class=\"has-text-align-right\">Speaker: Shun Hatano<\/p>\n\n\n\n<p>Abstract:<\/p>\n\n\n\n<p> The extreme metal poor galaxies (EMPG) exhibit intense high-ionization emission lines, such as He II4686, unexplained by stellar synthesis models. Umeda et al. (2022) employed CLOUDY and MCMC to reproduce the observed spectrum, revealing an unidentified non-thermal radiation source. In this study, we introduce [Ne V]3426 emission (97.1 eV) and estimate spectral indices and luminosities for EMPGs in the 54.4-97.1 eV range. Confirming that non-thermal radiation dominates the 54.4-97.1 eV range for all the galaxies with [Ne V]3426 detections, we discuss the origin of the non-thermal radiation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Origin of high-ionization lines found in extremely metal poor galaxies. Speaker: Shun Hatano Abstract: The ext &hellip; <a href=\"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/2024\/01\/24\/2024-01-31-2\/\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;2024-01-31&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":27,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2023","post","type-post","status-publish","format-standard","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/posts\/2023","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/users\/27"}],"replies":[{"embeddable":true,"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/comments?post=2023"}],"version-history":[{"count":1,"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/posts\/2023\/revisions"}],"predecessor-version":[{"id":2024,"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/posts\/2023\/revisions\/2024"}],"wp:attachment":[{"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/media?parent=2023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/categories?post=2023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/tags?post=2023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}