{"id":31021,"date":"2022-04-19T06:28:00","date_gmt":"2022-04-19T04:28:00","guid":{"rendered":"https:\/\/karmaka.de\/?p=31021"},"modified":"2022-08-02T10:37:47","modified_gmt":"2022-08-02T08:37:47","slug":"new-constraints-on-the-composition-and-initial-speed-of-cneos-2014-01-08","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=31021","title":{"rendered":"New Constraints on the Composition and Initial Speed of CNEOS 2014-01-08"},"content":{"rendered":"\n<p>Amir Siraj, Abraham Loeb<\/p>\n\n\n\n<p>accepted for publication in RNAAS<br>Submitted on 18 April 2022<\/p>\n\n\n\n<p><a href=\"https:\/\/arxiv.org\/pdf\/2204.08482\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p>&#8220;We study the newly released light curve from the fireball of the first interstellar meteor CNEOS 2014-01-08. The measured velocity and three observed flares down to an altitude of 18.7km imply ambient ram pressure in the range of 113\u2212194 MPa when the meteor disintegrated. The required yield strength is \u227320 times higher than stony meteorites and \u22732 times larger than iron meteorites. The implied slowdown in the atmosphere suggests an initial speed of about 66.5km s\u22121, strengthening the case for an interstellar origin of this meteor and making it an outlier relative to the velocity dispersion of local stars. &#8220;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Amir Siraj, Abraham Loeb accepted for publication in RNAASSubmitted on 18 April 2022 PDF (OPEN ACCESS) &#8220;We study the newly released light curve from the fireball of the first interstellar meteor CNEOS 2014-01-08. The measured&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96,97],"tags":[5651,6033],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/31021"}],"collection":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=31021"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/31021\/revisions"}],"predecessor-version":[{"id":31022,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/31021\/revisions\/31022"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=31021"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=31021"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=31021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}