The discovery of a high degree of outflow activity in the HL Tau/HH 30 region, with five out of six known young stars showing outflows within a region of 0.05 x 0.1 pc, is reported. CCD images reveal not only hitherto unseen features in the known bipolar jets associated with the HH 30 star and VLA 1-HL Tau source, but also show jets emanating directly from HL Tau and a source southeast of XZ Tau. Elongated Herbig-Harolike emission is also found centered on XZ Tau. If these outflows are somehow caused by mass accretion, this high degree of activity may be due to mutual gravitational disturbances (and subsequent mass infall) increasing the degree and duration of the outflow over that expected for an'isolated star'.
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Mundt et al. (1988) studied this question.
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