Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ===== Reports on the Detection of Methanimine in the ISM ===== Methanimine, H<sub>2</sub>CNH, had been identified first in spectra recorded toward Sgr B2 by\\ P. D. Godfrey, R. D. Brown, B. J. Robinson, and M. W. Sinclair,\\ **[[https://ui.adsabs.harvard.edu/abs/1973ApL....13..119G|Discovery of Interstellar Methanimine (Formaldimine)]]**\\ //Astrophys. Lett.// **13**, 119–121 (1973).\\ Even though only one transition, 1<sub>10</sub> –1<sub>11</sub> near 5290 MHz, was observed the detectionwas quite secure because of the <sup>14</sup>N hyperfine pattern. Methanimine turned out to be an abundant molecule not only in Sgr B2, but also in other hot core sources; e.g.:\\ J. E. Dickens, W. M. Irvine, C. H. De Vries, and M. Ohishi,\\ **[[https://doi.org/10.1086/303884|Hydrogenation of Interstellar Molecules: A Survey for Methylenimine (CH<sub>2</sub>NH)]]**\\ //Astrophys. J.// **479**, 307–312 (1997).\\ It was seen in absorption toward the dark cloud L183 and in emission in one of three translucent clouds (CB 17):\\ B. E. Turner, R. Terzieva, and E. Herbst,\\ **[[https://doi.org/10.1086/307300|The Physics and Chemistry of Small Translucent Molecular Clouds. XII. More Complex Species Explainable by Gas-Phase Processes]]**\\ //Astrophys. J.// **518**, 699–732 (1999). The detection of the <sup>13</sup>C isotopic species was reported in:\\ S.E. Cummins, R.A. Linke, and P. Thaddeus,\\ **[[https://ui.adsabs.harvard.edu/abs/1986ApJS...60..819C|A Survey of the Millimeter-Wave Spectrum of Sagittarius B2]]**\\ //Astrophys. J. Suppl. Ser.// **60**, 819–878 (1986). ---- Contributor(s): H. S. P. Müller; 06, 2006; 03, 2012 ---- molecules/ism/h2cnh.txt Last modified: 2019/10/23 17:10by mueller