{"id":2277,"date":"2012-06-05T15:06:31","date_gmt":"2012-06-05T20:06:31","guid":{"rendered":"http:\/\/www.kateva.org\/sh\/?p=2277"},"modified":"2012-06-05T15:06:31","modified_gmt":"2012-06-05T20:06:31","slug":"a-galaxy-ejects-its-black-hole","status":"publish","type":"post","link":"http:\/\/www.kateva.org\/sh\/?p=2277","title":{"rendered":"A Galaxy Ejects Its Black Hole"},"content":{"rendered":"<p><a href=\"http:\/\/www.theatlantic.com\/technology\/archive\/2012\/06\/picture-of-the-day-a-galaxy-ejects-its-black-hole\/258080\/\">Link.<\/a> &#8220;The galaxy, CID-42, is believed to be the product of a collision between two galaxies. In the wake of that collision, gravitational waves are propelling the black hole out of the galaxy at speeds of several million miles per hour.&#8221;<\/p>\n<p>Good exercise for a grad class in general relativity: What is the kinetic energy of the black hole in which reference frame?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Link. &#8220;The galaxy, CID-42, is believed to be the product of a collision between two galaxies. In the wake of that collision, gravitational waves are propelling the black hole out of the galaxy at speeds of several million miles per &hellip; <a href=\"http:\/\/www.kateva.org\/sh\/?p=2277\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[35],"class_list":["post-2277","post","type-post","status-publish","format-standard","hentry","category-share","tag-s"],"_links":{"self":[{"href":"http:\/\/www.kateva.org\/sh\/index.php?rest_route=\/wp\/v2\/posts\/2277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.kateva.org\/sh\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.kateva.org\/sh\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.kateva.org\/sh\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.kateva.org\/sh\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2277"}],"version-history":[{"count":1,"href":"http:\/\/www.kateva.org\/sh\/index.php?rest_route=\/wp\/v2\/posts\/2277\/revisions"}],"predecessor-version":[{"id":2278,"href":"http:\/\/www.kateva.org\/sh\/index.php?rest_route=\/wp\/v2\/posts\/2277\/revisions\/2278"}],"wp:attachment":[{"href":"http:\/\/www.kateva.org\/sh\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.kateva.org\/sh\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2277"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.kateva.org\/sh\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}