{"id":5685,"date":"2013-03-21T10:54:27","date_gmt":"2013-03-21T14:54:27","guid":{"rendered":"http:\/\/www.math.columbia.edu\/~woit\/wordpress\/?p=5685"},"modified":"2013-03-21T17:34:54","modified_gmt":"2013-03-21T21:34:54","slug":"planck-results","status":"publish","type":"post","link":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/?p=5685","title":{"rendered":"Planck Results"},"content":{"rendered":"<p>The long awaited CMB results from the Planck satellite are now out, see <a href=\"http:\/\/www.sciops.esa.int\/index.php?project=PLANCK&#038;page=Planck_Published_Papers\">here<\/a>.  A NASA press conference is about to start <a href=\"http:\/\/www.nasa.gov\/mission_pages\/planck\/news\/planck20130319.html\">here<\/a>.<\/p>\n<p>You really should be reading about this somewhere else, from a much better informed blogger, someone expert in cosmology, which I very much am not.  My non-expert impression is that, as rumored, the results are quite vanilla: 3.3 +\/- .3 [<em>Richard Easther had 3.2 +\/- .2, don&#8217;t know wh<\/em>y] light neutrinos, so no evidence for a fourth neutrino, no significant non-gaussianity.  No cosmic strings, see <a href=\"http:\/\/www.sciops.esa.int\/SA\/PLANCK\/docs\/Planck_2013_results_25.pdf\">here<\/a>, which has<\/p>\n<blockquote><p>conclusion that there is at present no evidence for cosmic strings in the Planck nominal mission data.<\/p><\/blockquote>\n<p>In recent years multiverse mania has involved lots of claims to see evidence of other universes in earlier CMB data.  Nothing about this in the Planck announcements I&#8217;ve seen, presumably they looked and didn&#8217;t find anything, or maybe thought it wasn&#8217;t even worth looking&#8230;<\/p>\n<p>I&#8217;ll try and make a list of informed commentary that I find, and keep a list here. Suggestions for additions are welcome.<\/p>\n<p>Richard Easther live-blogged the announcement <a href=\"http:\/\/excursionset.com\/blog\/2013\/3\/21\/planck-live-blog\">here<\/a>.<br \/>\nSesh Nadathur has comments <a href=\"http:\/\/blankonthemap.blogspot.de\/2013\/03\/what-planck-has-seen.html\">here<\/a>.<br \/>\nEthan Siegel has a posting with background <a href=\"http:\/\/scienceblogs.com\/startswithabang\/2013\/03\/21\/what-the-entire-universe-is-made-of-thanks-to-planck\/\">here<\/a>.<br \/>\nThe word from Resonaances is <a href=\"http:\/\/resonaances.blogspot.com\/2013\/03\/the-universe-after-planck.html\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The long awaited CMB results from the Planck satellite are now out, see here. A NASA press conference is about to start here. You really should be reading about this somewhere else, from a much better informed blogger, someone expert &hellip; <a href=\"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/?p=5685\">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":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1],"tags":[],"class_list":["post-5685","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/5685","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5685"}],"version-history":[{"count":6,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/5685\/revisions"}],"predecessor-version":[{"id":5693,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/5685\/revisions\/5693"}],"wp:attachment":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}