{"id":1106,"date":"2016-11-02T04:38:24","date_gmt":"2016-11-02T04:38:24","guid":{"rendered":"http:\/\/finn-family.com\/?p=1106"},"modified":"2016-11-02T04:38:24","modified_gmt":"2016-11-02T04:38:24","slug":"arp-299-black-holes-in-colliding-galaxies","status":"publish","type":"post","link":"http:\/\/finn-family.com\/?p=1106","title":{"rendered":"Arp 299: Black Holes in Colliding Galaxies"},"content":{"rendered":"<div><img src='http:\/\/apod.nasa.gov\/image\/1611\/Arp299_NustarHubble_960.jpg' style='max-width:600px;' \/><\/p>\n<div>Is only one black hole spewing high energy radiation &#8212; or two? To help find out, astronomers trained NASA&#8217;s Earth-orbiting NuSTAR and Chandra telescopes on Arp 299, the enigmatic colliding galaxies expelling the radiation. The two galaxies of Arp 299 have been locked in a gravitational combat for millions of years, while their central black holes will soon do battle themselves. Featured, the high-resolution visible-light image was taken by Hubble, while the superposed diffuse glow of X-ray light was imaged by NuSTAR and shown in false-color red, green, and blue. NuSTAR observations show that only one of the central black holes is seen fighting its way through a region of gas and dust &#8212; and so absorbing matter and emitting X-rays. The energetic radiation, coming only from the galaxy center on the right, is surely created nearby &#8212; but outside &#8212; the central black hole&#8217;s event horizon. In a billion years or so, only one composite galaxy will remain, and only one central supermassive black hole. Soon thereafter, though, another galaxy may enter the fray. via NASA <a href=\"http:\/\/ift.tt\/2f8LuDd\"><\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Is only one black hole spewing high energy radiation &#8212; or two? To help find out, astronomers trained NASA&#8217;s Earth-orbiting NuSTAR and Chandra telescopes on Arp 299, the enigmatic colliding <a href=\"http:\/\/finn-family.com\/?p=1106\" class=\"more-link\">[&hellip;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"Layout":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[9],"tags":[10,12],"class_list":["entry","author-admin","post-1106","post","type-post","status-publish","format-standard","category-whatsup","tag-ifttt","tag-nasa"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/posts\/1106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/finn-family.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1106"}],"version-history":[{"count":1,"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/posts\/1106\/revisions"}],"predecessor-version":[{"id":1107,"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/posts\/1106\/revisions\/1107"}],"wp:attachment":[{"href":"http:\/\/finn-family.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/finn-family.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1106"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/finn-family.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}