{"id":331490,"date":"2017-06-16T10:54:16","date_gmt":"2017-06-16T14:54:16","guid":{"rendered":"https:\/\/ntrs.nasa.gov\/search.jsp?R=20170005408"},"modified":"2017-06-16T10:54:16","modified_gmt":"2017-06-16T14:54:16","slug":"core-formation-on-asteroid-4-vesta-iron-rain-in-a-silicate-magma-ocean","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=331490","title":{"rendered":"Core Formation on Asteroid 4 Vesta: Iron Rain in a Silicate Magma Ocean"},"content":{"rendered":"<p>Abstract: Geochemical observations of the eucrite and diogenite meteorites, together with observations made by NASA&#8217;s Dawn spacecraft, suggest that Vesta resembles H chondrites in bulk chemical composition, possibly with about 25% of a CM-chondrite like composition added in. For this model, the core is 15% by mass (or 8 volume %) of the asteroid. The abundances of moderately siderophile elements (Ni, Co, Mo, W, and P) in eucrites require that essentially all of the metallic phase in Vesta segregated to&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abstract: Geochemical observations of the eucrite and diogenite meteorites, together with observations made by NASA&#8217;s Dawn spacecraft, suggest that Vesta resembles H chondrites in bulk chemical composition, possibly with about 25% of a CM-chondrite lik&#8230;<\/p>\n","protected":false},"author":60,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-331490","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/331490","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/60"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=331490"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/331490\/revisions"}],"predecessor-version":[{"id":331491,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/331490\/revisions\/331491"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=331490"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=331490"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=331490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}