Near-infrared imaging in H2 of molecular (CO) outflows from young stars |
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| Authors: | Jochen Eislöffel Christopher J. Davis |
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| Affiliation: | (1) Laboratoire d'Astrophysique, Observatoire de Grenoble, B.P. 53X, F-38041 Grenoble Cedex, France;(2) Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany |
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| Abstract: | We have imaged several known molecular (CO) outflows in H2 v=1-0 S(1) and wide-band K in order to identify the molecular shocks associated with the acceleration of ambient gas by outflows from young stars. We detected H2 line emission in all the flows we observed: L 1157, VLA 1623, NGC 6334I, NGC 2264G, L 1641N and Haro 4-255. A comparison of the H2 data with CO outflow maps strongly suggests that  prompt entrainment near the head of a collimated jet probably is the dominant mechanism for producing the CO outflows in these sources. |
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| Keywords: | Shock Waves ISM: jets and outflows ISM: kinematics and dynamics |
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