{"id":273,"date":"2010-06-08T16:29:29","date_gmt":"2010-06-08T05:29:29","guid":{"rendered":"http:\/\/www.brainsmatter.com\/?p=273"},"modified":"2012-08-05T10:55:20","modified_gmt":"2012-08-05T10:55:20","slug":"117-dr-michael-brown-galaxy-evolution-and-active-galactic-nuclei","status":"publish","type":"post","link":"https:\/\/www.brainsmatter.com\/?p=273","title":{"rendered":"117 &#8211; Dr Michael Brown &#8211; Galaxy Evolution and Active Galactic Nuclei"},"content":{"rendered":"<p>I speak to Dr Michael Brown, from the School of Physics at Monash University.  Michael talked to me about the formation of galaxies, and specifically, research into Active Galactic Nuclei (AGN)<\/p>\n<p>&#8211; What is the definition of a galaxy?<br \/>\n&#8211; What makes up a galaxy?<br \/>\n&#8211; What are some examples of galaxies we can see with binoculars and telescopes?<br \/>\n&#8211; What is the difference between a galaxy, a cloud of gas and a globular cluster?<br \/>\n&#8211; What are the structures of galaxies?<br \/>\n&#8211; What do we know about how these different types of galaxies form?<br \/>\n&#8211; How do galaxies grow over time?<br \/>\n&#8211; Do we know where the central black holes in galaxies come from?<br \/>\n&#8211; What is an Active Galactic Nucleus?<br \/>\n&#8211; Are there different types of AGNs?<br \/>\n&#8211; How are quasars formed?<br \/>\n&#8211; Why do some galaxies have AGNs and some do not?<br \/>\n&#8211; Are AGN&#8217;s the mechanism that causes the formation of stars in galaxies?<\/p>\n<p>Today&#8217;s listener of the episode is Robin Ford from Sydney, Australia.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/i182.photobucket.com\/albums\/x287\/brainsmatter\/audio.jpg\"><a href=\"http:\/\/predictabledata.com\/projects\/brainsmatter\/BM117-MichaelBrown.mp3\">Download MP3 of Ep 117<\/a><\/p>\n<p>Please vote for this podcast this month at<br \/>\n<a href=\"http:\/\/www.podcastalley.com\/one_vote2.php?pod_id=40939\" title=\"Podcast Alley - Your Podcast Library\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.podcastalley.com\/images\/podcastalley_icon.gif\" alt=\"PodcastAlley.com Feeds\" border=\"0\" height=\"15\" width=\"80\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.paypal.com\/cgi-bin\/webscr?cmd=_xclick&amp;business=brainsmatterinbox%40gmail%2ecom&amp;no_shipping=2&amp;no_note=1&amp;tax=0&amp;currency_code=USD&amp;bn=PP%2dDonationsBF&amp;charset=UTF%2d8\"><img decoding=\"async\" src=\"https:\/\/www.paypal.com\/en_US\/i\/btn\/x-click-but04.gif\" alt=\"Donate via Paypal\" \/><\/a><\/p>\n<p>You can donate by clicking on the button above, and subscribe by <a href=\"http:\/\/phobos.apple.com\/WebObjects\/MZStore.woa\/wa\/viewPodcast?id=257301606\">subscribing in iTunes <img decoding=\"async\" src=\"http:\/\/i182.photobucket.com\/albums\/x287\/brainsmatter\/iTunesWord.jpg\"><\/a><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/i.creativecommons.org\/l\/by-nc-nd\/2.5\/au\/88x31.png\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I speak to Dr Michael Brown, from the School of Physics at Monash University. Michael talked to me about the formation of galaxies, and specifically, research into Active Galactic Nuclei (AGN) &#8211; What is the definition of a galaxy? &#8211; What makes up a galaxy? &#8211; What are some examples of galaxies we can see [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,16,17,20],"tags":[31,36,354,62,110,111,365,157,366,158,162,368,369],"_links":{"self":[{"href":"https:\/\/www.brainsmatter.com\/index.php?rest_route=\/wp\/v2\/posts\/273"}],"collection":[{"href":"https:\/\/www.brainsmatter.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.brainsmatter.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.brainsmatter.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.brainsmatter.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=273"}],"version-history":[{"count":3,"href":"https:\/\/www.brainsmatter.com\/index.php?rest_route=\/wp\/v2\/posts\/273\/revisions"}],"predecessor-version":[{"id":654,"href":"https:\/\/www.brainsmatter.com\/index.php?rest_route=\/wp\/v2\/posts\/273\/revisions\/654"}],"wp:attachment":[{"href":"https:\/\/www.brainsmatter.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=273"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.brainsmatter.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=273"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.brainsmatter.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=273"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}