{"id":14224,"date":"2018-02-06T08:44:41","date_gmt":"2018-02-06T07:44:41","guid":{"rendered":"http:\/\/karmaka.de\/?p=14224"},"modified":"2018-02-17T11:24:30","modified_gmt":"2018-02-17T10:24:30","slug":"probing-the-use-of-spectroscopy-to-determine-the-meteoritic-analogues-of-meteors","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=14224","title":{"rendered":"Probing the use of spectroscopy to determine the meteoritic analogues of meteors<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"<p>A. Drouard, P. Vernazza, S. Loehle, J. Gattacceca, J. Vaubaillon, B. Zanda, M. Birlan, S. Bouley, et al.<\/p>\n<p>A&#038;A, Forthcoming article<\/p>\n<p>Accepted: 26 January 2018<\/p>\n<p><a href=\"https:\/\/www.aanda.org\/component\/article?access=doi&#038;doi=10.1051\/0004-6361\/201732225\" target=\"_blank\"><strong>LINK<\/strong><\/a><\/p>\n<p>Update (16 February 2018): <a href=\"https:\/\/arxiv.org\/pdf\/1802.04699.pdf\" target=\"_blank\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n<p>&#8220;Context. Determining the source regions of meteorites is one of the major goals of current research in planetary science. Whereas<br \/>\nasteroid observations are currently unable to pinpoint the source regions of most meteorite classes, observations of meteors with<br \/>\ncamera networks and the subsequent recovery of the meteorite may help make progress on this question. The main caveat of such an<br \/>\napproach, however, is that the recovery rate of meteorite falls is low (<20 %), implying that the meteoritic analogues of at least 80%\nof the observed falls remain unknown.\nAims. Spectroscopic observations of incoming bolides may have the potential to mitigate this problem by classifying the incoming\nmeteoritic material.\nMethods. To probe the use of spectroscopy to determine the meteoritic analogues of incoming bolides, we collected emission spectra\nin the visible range (320-880 nm) of \ufb01ve meteorite types (H, L, LL, CM, and eucrite) acquired in atmospheric entry-like conditions in\na plasma wind tunnel at the Institute of Space Systems at the University of Stuttgart (Germany). A detailed spectral analysis including\na systematic line identi\ufb01cation and mass ratio determinations (Mg\/Fe, Na\/Fe) was subsequently performed on all spectra.\nResults. It appears that spectroscopy, via a simple line identi\ufb01cation, allows us to distinguish the main meteorite classes (chondrites,\nachondrites and irons) but it does not have the potential to distinguish for example an H chondrite from a CM chondrite.\nConclusions. The source location within the main belt of the di\ufb00erent meteorite classes (H, L, LL, CM, CI, etc.) should continue\nto be investigated via \ufb01reball observation networks. Spectroscopy of incoming bolides only marginally helps precisely classify the\nincoming material (iron meteorites only). To reach a statistically signi\ufb01cant sample of recovered meteorites along with accurate orbits\n(>100) within a reasonable time frame (10-20 years), the optimal solution may be the spatial extension of existing \ufb01reball observation<br \/>\nnetworks.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A. Drouard, P. Vernazza, S. Loehle, J. Gattacceca, J. Vaubaillon, B. Zanda, M. Birlan, S. Bouley, et al. A&#038;A, Forthcoming article Accepted: 26 January 2018 LINK Update (16 February 2018): PDF (OPEN ACCESS) &#8220;Context. Determining&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,35,6,23,24,96,8],"tags":[118,1162,98,141,197],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/14224"}],"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=14224"}],"version-history":[{"count":4,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/14224\/revisions"}],"predecessor-version":[{"id":14323,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/14224\/revisions\/14323"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}