{"id":9812,"date":"2020-12-18T12:32:00","date_gmt":"2020-12-18T03:32:00","guid":{"rendered":"https:\/\/www.icrr.u-tokyo.ac.jp\/?post_type=event_researcher&#038;p=9812"},"modified":"2020-12-21T09:17:22","modified_gmt":"2020-12-21T00:17:22","slug":"new11%e6%9c%8827%e6%97%a5%e9%96%8b%e5%82%ac-multi-messanger-astrophysics-of-compact-binary-and-core-collapse-%e4%bb%8f%e5%9d%82%e5%81%a5%e5%a4%aa-resceu-2","status":"publish","type":"event_researcher","link":"https:\/\/www.icrr.u-tokyo.ac.jp\/en\/event_researcher\/9812\/","title":{"rendered":"Coronal Magnetic Activity in nearby Active Supermassive Black Holes: Dr. Yoshiyuki Inoue (Osaka University)"},"content":{"rendered":"\n<figure class=\"wp-block-table\"><div class=\"js-scrollable\"><table><tbody><tr><td>&nbsp;Number<\/td><td>R2-6<\/td><\/tr><tr><td>&nbsp;Date<\/td><td>&nbsp;December 18, 2020, 15:30-17:00<\/td><\/tr><tr><td>&nbsp;Place<\/td><td>ZOOM:<br><\/td><\/tr><tr><td>&nbsp;Speaker<\/td><td>&nbsp;Dr. Yoshiyuki Inoue (Osaka University)&nbsp;<\/td><\/tr><tr><td>&nbsp;Title<\/td><td>&#8220;Coronal Magnetic Activity in nearby Active Supermassive Black Holes&#8221;<\/td><\/tr><tr><td>Abstract<\/td><td>Central supermassive black holes of active galactic nuclei (AGNs) host hot plasma with a temperature of\u00a010&lt;sup>9&lt;\/sup>K, namely coronae. Like the Sun, black hole coronae are theoretically believed to be heated by their magnetic activity. However, such activity has not been observed yet. In this talk, I will report the first clear detection of coronal magnetic activity in nearby AGNs using ALMA (radio telescopes). The coronal magnetic fields are typically\u00a0\u00a0\u223c10<br>G on scales of\u00a0\u223c40\u00a0Schwarzschild radii. The measured magnetic field is weaker than the theoretical expectation, requiring a new corona heating mechanism. I will also discuss particle acceleration processes in the coronae of Seyferts, which may be the production sites of the high energy neutrinos seen by IceCube. Future MeV gamma-ray observations will provide critical tests to our scenario.<br><a href=\"https:\/\/www.icrr.u-tokyo.ac.jp\/icrr_seminar\/seminars20\/20201218_Inoue.pdf\">presentation<\/a><\/td><\/tr><\/tbody><\/table><\/div><\/figure>\n","protected":false},"featured_media":0,"template":"","tag_year":[],"class_list":["post-9812","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\/9812","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=9812"}],"wp:term":[{"taxonomy":"tag_year","embeddable":true,"href":"https:\/\/www.icrr.u-tokyo.ac.jp\/wp-json\/wp\/v2\/tag_year?post=9812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}