Identification of RNO 43 and B335 as two highly collimated bipolar flows oriented nearly in the plane of the sky

An analysis of CO and CS line observations shows that RNO 43 and B335 are single highly collimated bipolar flows oriented nearly in the plane of the sky. The angle between the line of sight and the flow axis is estimated to be 85 deg in RNO 43 and 82 deg in B335. The results indicate that each of these flows must have a significant expansion velocity perpendicular to its axis, and that the flow in B335 must be driven by a mostly nonmolecular wind component.