New HH objects in star-forming regions: Parsec-scale outflows in GM 2–30

We examine the star-forming region in a molecular cloud with the coordinates l = 33.30°, b = 0.25° at a distance of 1.7 kpc, in which the nebula GM 2–30 is embedded. Apart from the previously known Herbig—Haro object HH 172, several new HH objects have been found, comprising at least two HH flows. The internal structure of these objects is studied. The relationship between the line emission and kinematic data obtained through multi-pupil spectroscopy suggest the presence of bipolar outflow associated with the nebula GM 2–30 and HH 172/HH 721, which show mirror symmetry according to a number of characteristics. No optical source of this flow is observed, although the source of energy of the second flow may be a weak star associated with HH 723. The linear dimensions of the flows (more than one parsec) suggest that they are the giant outflows.