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| molecules:ism:ethanimin [2019/02/25 22:38] – external edit 127.0.0.1 | molecules:ism:ethanimin [2019/10/24 09:43] (current) – mueller |
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| ===== The Detection of Ethanimine in the ISM ===== | ===== The Detection of Ethanimine in the ISM ===== |
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| Ethanimine, CH<sub>3</sub>CHNH, is the the next heavier homolog of [[http://www.astro.uni-koeln.de/site/vorhersagen/molecules/ism/H2CNH.html|methanimine]], H<sub>2</sub>CNH. It has been identified in spectra taken with the GBT 100 m telescope toward Sgr B2(N) by\\ | Ethanimine, CH<sub>3</sub>CHNH, is the the next heavier homolog of [[molecules:ism:H2CNH|methanimine]], H<sub>2</sub>CNH. It has been identified in spectra taken with the GBT 100 m telescope toward Sgr B2(N) by\\ |
| R. A. Loomis, D. P. Zaleski, A. L. Steber, J. L. Neill, M. T. Muckle, B. J. Harris, J. M. Hollis, P. R. Jewell, V. Lattanzi, F. J. Lovas, O. Martinez, Jr., M. C. McCarthy, A. J. Remijan, B. H. Pate, and J. F. Corby,\\ | R. A. Loomis, D. P. Zaleski, A. L. Steber, J. L. Neill, M. T. Muckle, B. J. Harris, J. M. Hollis, P. R. Jewell, V. Lattanzi, F. J. Lovas, O. Martinez, Jr., M. C. McCarthy, A. J. Remijan, B. H. Pate, and J. F. Corby,\\ |
| **[[http://dx.doi.org/10.1088/2041-8205/765/1/L9|The Detection of Interstellar Ethanimine (CH<sub>3</sub>CHNH) from Observations Taken during the GBT PRIMOS Survey]]**\\ | **[[https://doi.org/10.1088/2041-8205/765/1/L9|The Detection of Interstellar Ethanimine (CH<sub>3</sub>CHNH) from Observations Taken during the GBT PRIMOS Survey]]**\\ |
| //Astrophys. J// **765**, Art. No. 9 (2013).\\ | //Astrophys. J// **765**, Art. No. 9 (2013).\\ |
| 6 rotational transitions were detected for the lower energy //E//-conformer and 4 for the higher energy //Z//-conformer. The transitions had //J// < 4 and //K<sub>a</sub>// < 1, occured between 13 and 48 GHz and were mostly seen in absorption. Two higher energy rotational transitions of the //E//-conformer were seen in emission. All transitions displayed well resolved CH<sub>3</sub> internal rotation splitting and some showed <sup>14</sup>N hyperfine splitting. The lines were detected in the two well known velocity components 64 km/s and 82 km/s, though (partial) overlap occured for the latter in some lines. A rotational temperature of 6 K was assumed.\\ | 6 rotational transitions were detected for the lower energy //E//-conformer and 4 for the higher energy //Z//-conformer. The transitions had //J// < 4 and //K<sub>a</sub>// < 1, occured between 13 and 48 GHz and were mostly seen in absorption. Two higher energy rotational transitions of the //E//-conformer were seen in emission. All transitions displayed well resolved CH<sub>3</sub> internal rotation splitting and some showed <sup>14</sup>N hyperfine splitting. The lines were detected in the two well known velocity components 64 km/s and 82 km/s, though (partial) overlap occured for the latter in some lines. A rotational temperature of 6 K was assumed.\\ |
| These, as well as other observations of fairly complex molecules toward Sgr B2(N) at apperently low rotational temperatures, may be related to findings by\\ | These, as well as other observations of fairly complex molecules toward Sgr B2(N) at apperently low rotational temperatures, may be related to findings by\\ |
| M. A. Requena-Torres, J. Martín-Pintado, A. Rodríguez-Franco, S. Martín, N. J. Rodríguez-Fernández, and P. de Vicente,\\ | M. A. Requena-Torres, J. Martín-Pintado, A. Rodríguez-Franco, S. Martín, N. J. Rodríguez-Fernández, and P. de Vicente,\\ |
| **[[http://dx.doi.org/10.1051/0004-6361:20065190|Organic Molecules in the Galactic Center – Hot Core Chemistry without Hot Cores]]**\\ | **[[https://doi.org/10.1051/0004-6361:20065190|Organic Molecules in the Galactic Center – Hot Core Chemistry without Hot Cores]]**\\ |
| //Astron. Astrophys.// **455**, 971–985 (2006);\\ | //Astron. Astrophys.// **455**, 971–985 (2006);\\ |
| and by\\ | and by\\ |
| M. A. Requena-Torres, J. Martín-Pintado, S. Martín, and M. R. Morris,\\ | M. A. Requena-Torres, J. Martín-Pintado, S. Martín, and M. R. Morris,\\ |
| **[[http://dx.doi.org/10.1086/523627|The Galactic Center: The Largest Oxygen-bearing Organic Molecule Repository]]**\\ | **[[https://doi.org/10.1086/523627|The Galactic Center: The Largest Oxygen-bearing Organic Molecule Repository]]**\\ |
| //Astrophys. J.// **672**, 352–360 (2008). | //Astrophys. J.// **672**, 352–360 (2008). |
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| Contributor(s): H. S. P. Müller; 02, 2013 | Contributor(s): H. S. P. Müller; 02, 2013 |
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