Spectacular Herbig-Haro Objects in the Carina Region
A pair of, but probably independent, Herbig-Haro (HH objects), designated as HH 135 and 136, have been discovered in the eastern Carina region by Schmidt observations with an objective prism. Follow-up studies on them have been made by low- and high-dispersion slit spectroscopy as well as by narrow band CCD imaging. They are the most distant (2.7 kpc) and most luminous HH objects found so far. HH 135 is excited by a very luminous (1.4 × 104 L⊙) IRAS source. HH 136, which is huge (~ 0.6 pc long), is probably powered by another source. Its blueshifted component shows acceleration as well as two-staged bow shocks, which is presumably explained either by an episodic outflow activity or by an MHD effect.
Unable to display preview. Download preview PDF.