Fig. 1

LBT-LUCI image of the HH34 region obtained with a narrow-band filter centred on the [Fe ii] 1.64 μm transition. The middle panel shows the region that comprises the HH34 collimated jet and its driving source, HH34 IRS. The top and bottom panels display the region around the two large bow shocks HH34 N and HH34 S, respectively, which are located at about 100′′ from HH34 IRS. Background areas display a mean rms of 9×10-19 erg s-1 cm-2 pixel-1. The bottom contour mark the 5σ level in the upper and lower panels and the 10σ level in the central panel. The remaining nine contours are traced using a logarithmic scale with the highest level corresponding to a flux 100 times greater than the first contour. We note that in spite of the large nebulosity associated with the driving source, the HH34 counter-jet is detected as a faint collimated emission.
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