{"id":10683,"date":"2021-10-13T09:24:00","date_gmt":"2021-10-13T00:24:00","guid":{"rendered":"https:\/\/www.icrr.u-tokyo.ac.jp\/?post_type=event_researcher&#038;p=10683"},"modified":"2021-10-25T22:14:22","modified_gmt":"2021-10-25T13:14:22","slug":"quantification-of-the-hadronic-and-leptonic-gamma-ray-components-in-the-tev-gamma-ray-supernova-remnant-rx-j1713-7%e2%88%923946-yasuo-fukui-department-of-physics-nagoya-university-2","status":"publish","type":"event_researcher","link":"https:\/\/www.icrr.u-tokyo.ac.jp\/en\/event_researcher\/10683\/","title":{"rendered":"Quantification of the hadronic and leptonic gamma-ray components in the TeV gamma ray supernova remnant RX J1713.7\u22123946 \/ Yasuo Fukui (Department of Physics, Nagoya University)"},"content":{"rendered":"\n<figure class=\"wp-block-table\"><div class=\"js-scrollable\"><table><tbody><tr><td>Number<\/td><td>R3-3<\/td><\/tr><tr><td>Date&amp;Time<\/td><td>15:30-17:00,Wednesday, October 13, 2021<\/td><\/tr><tr><td>Place<\/td><td>Zoom Conference: &nbsp;<a href=\"https:\/\/u-tokyo-ac-jp.zoom.us\/j\/81302700351?pwd=TkdsZnRRVWo5OUZRWVpVZjB2aGtrUT09\">https:\/\/u-tokyo-ac-jp.zoom.us\/j\/81302700351?pwd=TkdsZnRRVWo5OUZRWVpVZjB2aGtrUT09<\/a><\/td><\/tr><tr><td>Speaker<\/td><td>Yasuo Fukui (Department of Physics, Nagoya University)<\/td><\/tr><tr><td>Title<\/td><td>&#8220;Quantification of the hadronic and leptonic gamma-ray components in the TeV gamma ray supernova remnant RX J1713.7\u22123946&#8221;<\/td><\/tr><tr><td>Abstract&nbsp;<\/td><td>Supernova remnants (SNRs) have been thought as a promising site for cosmic ray acceleration in the Milky Way. It was however difficult to disentangle the gamma ray emitting processes, leaving the cosmic ray origin unsettled. We developed a new methodology which assumes that the gamma-ray counts Ng is expressed by a linear combination of two terms; one is proportional to the interstellar proton column density Np and the other proportional to the nonthermal X-ray count Nx. We interpret that the former corresponds to the hadronic component and the latter the leptonic component. We applied the scheme to the core collapse SNR RX J1713.7\u22123946 and derived the ratio between the hadronic and leptonic component to be ~70%:30%. This has quantified the two gamma ray origins for the first time. The dominance of the hadronic gamma rays reflects the massive interstellar protons of \u223c 10^4M\u2299, target protons in the p-p reaction, associated with the SNR, lending further support for the acceleration of the cosmic-ray protons.<br><br>Reference<br>Y. Fukui, H. Sano, Y. Yamane, T. Hayakawa, T. Inoue, K. Tachihara, G. Rowell, and S. Einecke 2021, ApJ, 915, 84F&nbsp;<br><a href=\"https:\/\/www.icrr.u-tokyo.ac.jp\/prwps\/wp-content\/uploads\/fukui-ICRR-seminar-1713-13102021-.pdf\">Presentation File<\/a><\/td><\/tr><\/tbody><\/table><\/div><\/figure>\n","protected":false},"featured_media":0,"template":"","tag_year":[],"class_list":["post-10683","event_researcher","type-event_researcher","status-publish","hentry","en-US"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.icrr.u-tokyo.ac.jp\/wp-json\/wp\/v2\/event_researcher\/10683","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.icrr.u-tokyo.ac.jp\/wp-json\/wp\/v2\/event_researcher"}],"about":[{"href":"https:\/\/www.icrr.u-tokyo.ac.jp\/wp-json\/wp\/v2\/types\/event_researcher"}],"wp:attachment":[{"href":"https:\/\/www.icrr.u-tokyo.ac.jp\/wp-json\/wp\/v2\/media?parent=10683"}],"wp:term":[{"taxonomy":"tag_year","embeddable":true,"href":"https:\/\/www.icrr.u-tokyo.ac.jp\/wp-json\/wp\/v2\/tag_year?post=10683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}