{"id":540902,"date":"2018-10-30T11:59:54","date_gmt":"2018-10-30T15:59:54","guid":{"rendered":"https:\/\/ntrs.nasa.gov\/search.jsp?R=20180006936"},"modified":"2018-10-30T11:59:54","modified_gmt":"2018-10-30T15:59:54","slug":"the-volatile-composition-of-comet-c2017-e4-lovejoy-before-its-disruption-as-revealed-by-high-resolution-infrared-spectroscopy-with-ishell-at-the-nasairtf","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=540902","title":{"rendered":"The Volatile Composition of Comet C\/2017 E4 (Lovejoy) before its Disruption, as Revealed by High-Resolution Infrared Spectroscopy with iSHELL at the NASA\/IRTF"},"content":{"rendered":"<p>Abstract: In 2017 April, we acquired comprehensive high-resolution spectra of newly discovered comet C\/2017 E4 (Lovejoy) as it approached perihelion, and before its disintegration. We detected many cometary emission lines in the range (2.8-5.3) \u00b5m, in four customized instrument settings (L1-c, L3, Lp1-c, and M1) of iSHELL-the new near-IR high-resolution immersion echelle spectrograph at NASA\/IRTF (Maunakea, Hawaii). We identified 12 molecular species: nine primary volatiles (H2O, HCN, NH3, CO, C2H2, C2&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abstract: In 2017 April, we acquired comprehensive high-resolution spectra of newly discovered comet C\/2017 E4 (Lovejoy) as it approached perihelion, and before its disintegration. We detected many cometary emission lines in the range (2.8-5.3) &micro;m, in four customized instrument settings (L1-c, L3, Lp1-c, and M1) of iSHELL-the new near-IR high-resolution immersion echelle spectrograph at NASA\/IRTF (Maunakea, Hawaii). We identified 12 molecular species: nine primary volatiles (H2O, HCN, NH3, CO, C2H2, C2&#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-540902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/540902","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=540902"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/540902\/revisions"}],"predecessor-version":[{"id":540903,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/540902\/revisions\/540903"}],"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=540902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=540902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=540902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}