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molecules:ism:nh2 [2023/02/10 16:10] – mueller | molecules:ism:nh2 [2023/02/10 16:31] (current) – mueller |
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**[[https://doi.org/10.1051/0004-6361/202038490|First detection of NHD and ND2 in the interstellar medium — Amidogen deuteration in IRAS 16293–2422]]**\\ | **[[https://doi.org/10.1051/0004-6361/202038490|First detection of NHD and ND2 in the interstellar medium — Amidogen deuteration in IRAS 16293–2422]]**\\ |
//Astron. Astrophys.// **641**, Art. No. A153 (2020).\\ | //Astron. Astrophys.// **641**, Art. No. A153 (2020).\\ |
Both isotopologs were detected in archival HIFI///Herschel// data taken toward the Class 0 protostar IRAS 16293−2422 | Both isotopologs were detected in archival HIFI///Herschel// data taken toward the Class 0 protostar IRAS 16293−2422. Very high degrees of deuteration were inferred.\\ |
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| A similar account was given shortly thereafter by\\ |
| A. Bacmann, A. Faure, P. Hily-Blant, K. Kobayashi, H. Ozeki, S. Yamamoto, L. Pagani, and F. Lique,\\ |
| **[[https://doi.org/10.1093/mnras/staa2903|Deuterium fractionation of nitrogen hydrides: detections of NHD and ND2]]**\\ |
| //Mon. Not. R. Astron. Soc.// **499**, 1795 (2020).\\ |
| NHD observations are based on archival APEX data, ND<sub>2</sub> observations on archival HIFI///Herschel// data as above. The numbers are very similar to the ones above. One can deduce deuteration degrees per A atom of ~0.25 and ~0.35 for NHD and ND<sub>2</sub>, respectively, from their total column densities.\\ |
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