{"id":1545,"date":"2014-02-20T17:45:40","date_gmt":"2014-02-20T22:45:40","guid":{"rendered":"http:\/\/blog.carlrobitaille.org\/2014\/02\/20\/videotitle-10\/"},"modified":"2018-11-08T12:41:28","modified_gmt":"2018-11-08T17:41:28","slug":"central-force","status":"publish","type":"post","link":"https:\/\/blog.carlrobitaille.org\/?p=1545","title":{"rendered":"Central Force"},"content":{"rendered":"<p><b>Google+ reshared post<\/b><\/p>\n<blockquote><p><b>Central Force<\/b><\/p>\n<p>One of the clearest indications of a supermassive black hole in our galaxy is the motion of stars in that region. \u00a0In the image below, the motion of stars are tracked over about 15 years. \u00a0By calculating the orbits of these stars we can determine the mass of the central black hole, which is about 4 million solar masses.<\/p>\n<p>What makes this particularly cool is that this region is obscured by dust, so we use radio astronomy to peer behind the dust and detect the stars.<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/-tzjI_ZJaCfM\/UwYiSz7qAHI\/AAAAAAAATfQ\/0xKIh3GNjTM\/w500-h500\/2008orbits_animfull.gif\" alt=\"\" \/><\/p>\n<p>Import\u00e9 de <a href=\"https:\/\/plus.google.com\/104239776541827516598\/posts\/cHh25Q3KPu9\">Google+<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Google+ reshared post Central Force One of the clearest indications of a supermassive black hole in our galaxy is the motion of stars in that region. \u00a0In the image below, the motion of stars are tracked over about 15 years. &hellip; <a href=\"https:\/\/blog.carlrobitaille.org\/?p=1545\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1545","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/1545","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1545"}],"version-history":[{"count":2,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/1545\/revisions"}],"predecessor-version":[{"id":1574,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/1545\/revisions\/1574"}],"wp:attachment":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}