Astron. J., 118, 1347-1353 (1999/September-0)
Newly discovered Herbig-Haro objects in the NGC 2068 and NGC 2071 regions.
ZHAO B., WANG M., YANG J., WANG H., DENG L., YAN J. and CHEN J.
Abstract (from CDS):
Taking the advantage of the large field of view at the 60/90 cm Schmidt telescope of Beijing Astronomical Observatory, we were able to carry out a wide-field survey of Herbig-Haro (HH) objects in nearby star-forming regions, including Perseus, Taurus, Orion, and others. In a 58'x58' field centered on NGC 2068 and NGC 2071 (M78), two active regions of star formation in the giant molecular cloud complex L1630, we found 17 HH objects exhibiting prominent [S II] emission but without continuum emission. Among these, we confirmed all the 11 known HH objects listed in the General Catalogue of Herbig-Haro Objects in this field. In addition, we discovered another six new HH objects, including HH 437, 438A-C, 440A/B, 442, 443, and 452A/B. These objects exhibit a variety of morphological structures, from knot to nebula. The discovery of these HH objects demonstrates strong activity of young stellar objects in the region we are studying. The large-scale spatial distribution of HH objects in the region is discussed by combination of our results and previous data.
ISM: Herbig-Haro objects - ISM: individual (NGC 2068, NGC 2071) - ISM: Jets and Outflows - Stars: Formation - Stars: Pre-Main-Sequence
Table 2: HH NNN (Nos 437-438, 440, 442-443, 452).
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