{"id":1618,"date":"2020-01-01T10:59:51","date_gmt":"2020-01-01T01:59:51","guid":{"rendered":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?post_type=seminar&#038;p=1618"},"modified":"2021-07-13T14:53:55","modified_gmt":"2021-07-13T05:53:55","slug":"graine-project-first-detection-of-gamma-ray-object-by-balloon-borne-emulsion-telescope-and-prospects","status":"publish","type":"seminar","link":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/1618\/","title":{"rendered":"GRAINE Project: First Detection of Gamma-ray Object by Balloon-borne Emulsion Telescope and Prospects"},"content":{"rendered":"<p><span>Observation of cosmic gamma rays is important in understanding high-energy phenomena in the universe. Since 2008, the Fermi Gamma-ray Space Telescope has surveyed the sub-GeV\/GeV gamma-ray sky and provided a large mount of data. However, observation remains difficult owing to the lack of the angular resolution, and new issues have arisen. We started up a precise gamma-ray observation project, Gamma-Ray Astro-Imager with Nuclear Emulsion (GRAINE), using balloon-borne emulsion gamma-ray telescopes to enable high angular resolution, polarization-sensitive, and large-aperture observations in the 0.01\u2013100 GeV energy region. In April 2018, we conducted the 3rd balloon experiment (GRAINE2018). Following the data acquisition and analysis, we succeeded in the first detection of a celestial gamma-ray object, Vela pulsar, using the emulsion telescope. Currently, we are preparing for the next balloon experiment planned in 2021. In this presentation, I will demonstrate results of GRAINE2018 and also prospects of GRAINE experiment.<\/span><\/p>\n","protected":false},"featured_media":0,"template":"","tags":[],"seminar_category":[58],"acf":{"s_now_accepting":true,"s_date_order":"2020-01-08 17:30:00","s_date_end":null,"s_date_text":"","s_text":"Hiroki Rokujo (Nagoya University)","s_place":"Lounge in front of ES635 KMI Science Symposia","s_place_other":"","s_categoryother":"","s_poster":"","s_poster2":"","s_slide":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>GRAINE Project: First Detection of Gamma-ray Object by Balloon-borne Emulsion Telescope and Prospects - KMI - Nagoya University<\/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.kmi.nagoya-u.ac.jp\/eng\/seminar\/1618\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"GRAINE Project: First Detection of Gamma-ray Object by Balloon-borne Emulsion Telescope and Prospects - KMI - Nagoya University\" \/>\n<meta property=\"og:description\" content=\"Observation of cosmic gamma rays is important in understanding high-energy phenomena in the universe. Since 2008, the Fermi Gamma-ray Space Telescope has surveyed the sub-GeV\/GeV gamma-ray sky and provided a large mount of data. However, observation remains difficult owing to the lack of the angular resolution, and new issues have arisen. We started up a precise gamma-ray observation project, Gamma-Ray Astro-Imager with Nuclear Emulsion (GRAINE), using balloon-borne emulsion gamma-ray telescopes to enable high angular resolution, polarization-sensitive, and large-aperture observations in &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/1618\/\" \/>\n<meta property=\"og:site_name\" content=\"KMI - Nagoya University\" \/>\n<meta property=\"article:modified_time\" content=\"2021-07-13T05:53:55+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/1618\/\",\"url\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/1618\/\",\"name\":\"GRAINE Project: First Detection of Gamma-ray Object by Balloon-borne Emulsion Telescope and Prospects - KMI - Nagoya University\",\"isPartOf\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/#website\"},\"datePublished\":\"2020-01-01T01:59:51+00:00\",\"dateModified\":\"2021-07-13T05:53:55+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/1618\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/1618\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/1618\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Seminars\",\"item\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"GRAINE Project: First Detection of Gamma-ray Object by Balloon-borne Emulsion Telescope and Prospects\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/#website\",\"url\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/\",\"name\":\"KMI - Nagoya University\",\"description\":\"Nagoya University: Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI)\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"GRAINE Project: First Detection of Gamma-ray Object by Balloon-borne Emulsion Telescope and Prospects - KMI - Nagoya University","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.kmi.nagoya-u.ac.jp\/eng\/seminar\/1618\/","og_locale":"en_US","og_type":"article","og_title":"GRAINE Project: First Detection of Gamma-ray Object by Balloon-borne Emulsion Telescope and Prospects - KMI - Nagoya University","og_description":"Observation of cosmic gamma rays is important in understanding high-energy phenomena in the universe. Since 2008, the Fermi Gamma-ray Space Telescope has surveyed the sub-GeV\/GeV gamma-ray sky and provided a large mount of data. However, observation remains difficult owing to the lack of the angular resolution, and new issues have arisen. 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