{"id":1151,"date":"2021-04-07T17:21:18","date_gmt":"2021-04-07T08:21:18","guid":{"rendered":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/?page_id=1151"},"modified":"2021-04-12T11:23:33","modified_gmt":"2021-04-12T02:23:33","slug":"2021-04-21","status":"publish","type":"page","link":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/2021-04-21\/","title":{"rendered":"2021-04-21"},"content":{"rendered":"\n<p class=\"has-medium-font-size\"><span class=\"has-inline-color has-bright-blue-color\"><strong>ElectroMagnetic follow-up observation for gravitational wave event with Subaru\/HSC<\/strong><\/span><\/p>\n\n\n\n<p class=\"has-text-align-right\">speaker: Takayuki Ohgami<\/p>\n\n\n\n<p>Abstract:<br>Gravitational wave (GW) astronomy was pioneered by the first detection of gravitational wave in 2015, and the first identification of electromagnetic counterpart of GW source opened a door of multimessenger astronomy. In Japan, J-GEM (Japanese Collaboration for Gravitational-Wave Electro-Magnetic Follow-up) is organized to perform immediate follow-up observations of GW with optical and near-infrared telescopes in Japan and overseas. Deepest and widest imaging capabilities of the Subaru telescope\/Hyper Suprime-Cam (HSC) with an FoV of 1.8 deg^2 attract attention since more and more distant GW events and fainter EM emission in a larger survey volume as GW sensitivity improves are expected. The LIGO\/Virgo began their 3rd observing run (O3) in April 2019, and they reported 56 events were detected. We conducted survey observation for three events, S190510g, S191216ap and S200224a with Subaru\/HSC. In S190510g, we made the quick turnaround observation 1.7 hr after receiving the preliminary alert, which demonstrated early identification possible. In S200224ca, we made the deepest optical observation over 80% of the 90% credible localization. In this talk, we will report the observations, data analysis, and the candidates of optical counterpart of the GW events.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ElectroMagnetic follow-up observation for gravitational wave event with Subaru\/HSC speaker: Takayuki Ohgami Ab &hellip; <a href=\"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/2021-04-21\/\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;2021-04-21&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":17,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1151","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/pages\/1151","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/comments?post=1151"}],"version-history":[{"count":2,"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/pages\/1151\/revisions"}],"predecessor-version":[{"id":1166,"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/pages\/1151\/revisions\/1166"}],"wp:attachment":[{"href":"https:\/\/sci.nao.ac.jp\/seminars\/colloquium\/wp-json\/wp\/v2\/media?parent=1151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}