{"id":20058,"date":"2019-07-15T11:06:29","date_gmt":"2019-07-15T09:06:29","guid":{"rendered":"http:\/\/karmaka.de\/?p=20058"},"modified":"2019-07-15T11:06:30","modified_gmt":"2019-07-15T09:06:30","slug":"the-evolution-of-polycyclic-aromatic-hydrocarbons-under-simulated-inner-asteroid-conditions","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=20058","title":{"rendered":"The evolution of polycyclic aromatic hydrocarbons under simulated inner asteroid conditions<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>Claudia\u2010Corina Giese, Inge Loes, Ten Kate, Oliver Pl\u00fcmper, Helen E. King, Christoph Lenting, Yang Liu, Alexander G. G. M. Tielens<\/p>\n\n\n\n<p>Meteoritics &amp; Planetary Science<br>\nFirst Published: 14 July 2019<\/p>\n\n\n\n<p><a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/full\/10.1111\/maps.13359\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br>\n<a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/epdf\/10.1111\/maps.13359\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;Large polycyclic aromatic hydrocarbons (PAHs) are an important component of the interstellar medium. PAHs have been identified in the soluble and insoluble matter of carbonaceous chondrites (CCs). Here, we study the evolution of PAHs under conditions relevant to the interiors of asteroids and compare our results to PAHs observed in CCs. We have performed long\u2010term and short\u2010term hydrothermal experiments, in which we exposed PAH\u2010mineral mixture analogs of meteorites to temperature conditions representative of those predicted for asteroids interiors. Our results show that small PAHs with melting points within the aqueous alteration temperature of CCs form carbonaceous spherules in the presence of water. In this work, we describe the microstructure and morphology of these spherules. We discuss the similarities and differences compared to globules isolated from CCs.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Claudia\u2010Corina Giese, Inge Loes, Ten Kate, Oliver Pl\u00fcmper, Helen E. King, Christoph Lenting, Yang Liu, Alexander G. G. M. Tielens Meteoritics &amp; Planetary Science First Published: 14 July 2019 LINK (OPEN ACCESS) PDF (OPEN ACCESS)&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,576],"tags":[3273,2673],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/20058"}],"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=20058"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/20058\/revisions"}],"predecessor-version":[{"id":20059,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/20058\/revisions\/20059"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}