Scanning Fabry-P´ erot observations of the HH 7-11 outflow system ?

Results of Fabry-Pscanning interferometry of the HH 7-11 complex of Herbig-Haro objects are presented. Line profiles and velocity fields are derived. In HH 7 and HH 11 morphological changes in various velocities are discovered, which are interpreted as spatially separated bow shocks and Mach disks. Several arcuate-shaped features, oriented in the di- rection of the outflow, are pointed out. To explain the nature of the difference in the physical parameters of HH 11 and other knots a suggestion is made about the probable intersection of the two outflows.