{"id":290471,"date":"2017-03-21T09:32:57","date_gmt":"2017-03-21T13:32:57","guid":{"rendered":"https:\/\/ntrs.nasa.gov\/search.jsp?R=20170002352"},"modified":"2017-03-21T09:32:57","modified_gmt":"2017-03-21T13:32:57","slug":"an-infrared-search-for-hdo-in-comet-d2012-s1-ison-and-implications-for-ishell","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=290471","title":{"rendered":"An Infrared Search for HDO in Comet D\/2012 S1 (ISON) and Implications for iSHELL"},"content":{"rendered":"<p>Abstract: We performed a sensitive search for HDO in comet D\/2012 S1 (ISON) on 2013 November 16, 17, and 22 using CSHELL and the NASA Infrared Telescope Facility. We constrained the HDO\/H2O ratio to less than 2.0 VSMOW (the terrestrial ocean value) at the 3 sigma uncertainty level from two independent measurements corresponding to different H2O outgassing rates. This represents the best constrained HDO\/H2O ratio for a comet using a small (3 m) telescope and illustrates that when CSHELL is replaced with&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abstract: We performed a sensitive search for HDO in comet D\/2012 S1 (ISON) on 2013 November 16, 17, and 22 using CSHELL and the NASA Infrared Telescope Facility. We constrained the HDO\/H2O ratio to less than 2.0 VSMOW (the terrestrial ocean value) at &#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-290471","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/290471","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=290471"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/290471\/revisions"}],"predecessor-version":[{"id":290472,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/290471\/revisions\/290472"}],"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=290471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=290471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=290471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}