Newly Discovered Herbig-Haro Objects in the NGC 2068 and NGC 2071 Regions

Details Newly Discovered Herbig-Haro Objects in the NGC 2068 and NGC 2071 Regions Newly Discovered Herbig-Haro Objects in the NGC 2068 and NGC 2071 Regions

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aj....118.1347z&link_type=abstract

The Astronomical Journal, Volume 118, Issue 3, pp. 1347-1353.

Astronomy and Astrophysics

Astronomy

11

Ism: Herbig-Haro Objects, Ism: Individual (Ngc 2068, Ngc 2071), Ism: Jets And Outflows, Stars: Formation, Stars: Pre-Main-Sequence

Scientific paper

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.

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