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A Molecular Counterpart to the Herbig-Haro 1-2 Flow

A. Moro-Martin·J. Cernicharo·A. Noriega-Crespo·J. Martin-Pintado
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Abstract

We present high angular resolution (12"-24") and high sensitivity 12CO and 13CO J=2-1 and J=1-0 observations of the HH 1-2 outflow. The observations show the molecular counterpart, moving with a velocity of approx. 30 km/s, of the optical bipolar system driven by the VLA 1 embedded source. Along the optical jet there are certain regions where the molecular gas reaches deprojected velocities of 100-200 km/s, and that we interpret as the molecular jet. The bipolar CO outflow has a length of approx. 260" with a curved morphology towards the North where it extends beyond the HH 1 object (approx. 120") . Two new molecular outflows have been detected, one arising from IRAS 05339-0647 which excites the HH 147 optical flow and another powered by VLA 2 which drives the HH 144 optical outflow. The molecular outflow driven by the VLA 3 source is also clearly detected and spatially resolved from the VLA 1 main outflow.

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A. Moro-Martin, J. Cernicharo, A. Noriega-Crespo, J. Martin-Pintado. 1999-06-03. A Molecular Counterpart to the Herbig-Haro 1-2 Flow. https://doi.org/10.1086/312156

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