HUBBLE-SPACE-TELESCOPE IMAGING OF HERBIG-HARO OBJECT NO-2

Images of Herbig-Haro Object No. 2 obtained with the Planetary Camera of the Hubble Space Telescope are presented and discussed. The images, obtained in the emission lines of Halpha, [S II], and [O III] at a sc ale of 0.044 arcsec pixel-1, have been registered,to within 11 milliar csec and the spherically aberrated images have been restored with the Richardson-Lucy algorithm. The A and H complexes in HH 2, which appear as somewhat extended (2''-3''), amorphous features on ground-based im ages, are found to resolve into a rich array of structures with sizes in the range 0.2''-0.4'', embedded within faint extended emission. A w ide range of excitation is evident throughout each complex. Although a few of the structures are suggestive of bow shock wave geometry, most of the features appear chaotic with complex excitation structure. It is tentatively suggested that the features in HH 2 may be the result o f the fragmentation of a bow wave.