The distribution of C2S and NH3 in two Bok globules at different evolutionary stages: CB246 and CB34 |
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| Authors: | Claudio Codella & Flavio Scappini |
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| Institution: | Observatorio Astronomico Nacional, Apartado 1143, 28800 Alcalàde Henares, Madrid, Spain,;Istituto di Spettroscopia Molecolare del CNR, via P. Gobetti 101, 40129 Bologna, Italy |
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| Abstract: | Two Bok globules, L1253 (CB246) and CB34, have been mapped in the C2S (21–10) transition and in the NH3 (1, 1) and NH3 (2, 2) inversion transitions, respectively. By comparing the C2S map of L1253 (CB246) with the NH3 map of the same globule from Lemme et al., a clumped onion structure results as a consequence of the chemical and dynamical evolution of the object. From the derived parameters it appears that both L1253 (CB246) and CB34 are close to virial equilibrium. |
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| Keywords: | molecular data stars: formation ISM: clouds ISM: globules ISM: molecules radio lines: ISM |
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