1994A&A...287..571M

We report on the serendipitous discovery of a Herbig-Haro flow close to the pre-main sequence system HV Tauri. Low resolution spectra indicate a high excitation flow. The profile of emission lines seen at high resolution shows the existence of two velocity components, which are interpreted as emission from a bow shock directed towards the observer, moving with a velocity of about 300km/s at an angle of 60deg to the line of sight. We argue that the most likely source of the flow is HV Tau AB, which would be the first known case of a weak T Tauri star driving a Herbig-Haro flow.