HH 46/47: Also a parsec scale flow

We report the discovery of a pair of large Herbig-Haro type structures roug hly 10 arcminutes (1.3 pc) north-east and south-west of the source driving the well-known HH 46/47 Herbig-Haro jet in new deep emission-line images ma de using the Wide Field Imager on the ESO/MPG La Silla 2.2-m telescope. The se new images suggest that the HH 46/47 outflow is much more extensive than previously assumed, extending over a total of 2.6 pc on the sky, or over 3 pc in space, when deprojected. HH 46/47 thus also belongs to the recently- discovered class of giant Herbig-Haro flows.