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--- molecules:ism:heh-plus [2019/04/23 17:40] – created mueller
+++ molecules:ism:heh-plus [2019/04/24 12:35] – mueller
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 ===== On the Detection of HeH+ in the Interstellar Medium =====
+R. Güsten, H. Wiesemeyer, D. Neufeld, K. M. Menten, U. U. Graf, K. Jacobs,
+B. Klein, O. Ricken, C. Risacher, and J. Stutzki,\\
+reported on the\\
+**[[https://doi.org/10.1038/s41586-019-1090-x|Astrophysical detection of the helium hydride ion HeH<sup>+</sup>]]**\\
+//Nature// **568**, 357 (2019).\\
+The //J// = 1 − 0 transition at 2.0102 THz was detected
+in emission toward the NGC 7027 photo-dissociation region (PDR) with the upGREAT
+instrument using the SOFIA airplane. The column density is quite close to model
+calculations; interestingly, about a factor of four was detected compared to
+the expectations.\\
+See also the [[https://www.mpifr-bonn.mpg.de/pressreleases/2019/5|MPIfR press release]] (in English; [[https://www.mpifr-bonn.mpg.de/pressemeldungen/2019/5|German version]] also available).
+----
+Contributor(s): H. S. P. Müller; 04, 2019
+----