| タイトル | Detection of a new interstellar molecule, H2CN |
| 著者（英） | Irvine, William M.; Mcgonagle, Douglas; Ohishi, Masatoshi; Yamamoto, Satoshi; Saito, Shuji |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 1994-05-20 |
| 言語 | eng |
| 内容記述 | We have detected a new interstellar molecule, H2CN (methylene amidogen), in the cold, dark molecular cloud TMC-1. The column density of H2CN is estimated to be approximately 1.5 x 10(exp 11) cm(exp -2) by assuming an excitation temperature of 5 K. This column density corresponds to a fractional abundance relative to H2 of approximately 1.5 x 10(exp -11). This value is more than three orders of magnitude less than the abundance of the related molecule HCN in TMC-1. We also report a tentative detection of H2CN in Sgr B2(N). The formation mechanism of H2CN is discussed. Our detection of the N2CN molecule may suggest the existence of a new series of carbon-chain molecules, CH2C(n)N (N = 0, 1, 2, ...). |
| NASA分類 | ASTRONOMY |
| レポートNO | 95A63412 |
| 権利 | Copyright |
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