Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003chjaa...3..458s&link_type=abstract
Chinese Journal of Astronomy & Astrophysics, Vol. 3, No. 5, p. 458-468
Astronomy and Astrophysics
Astrophysics
6
Ism: Herbig-Haro Objects, Ism: Individual (Taurus Region), Ism: Jets And Outflows, Star: Formation, Stars: Pre-Main-Sequence
Scientific paper
We report our new results on Herbig-Haro (HH) objects in the star forming region of Taurus from a wide-field survey with the 60/90 cm Schmidt telescope of the Beijing Astronomical Observatory. This survey using CCD imaging with a narrow band [SII] filter and an intermediate band [BATC10] filter covered approximately 30 square degrees in Taurus. Besides confirming the known HH Objects in the region, we discovered seven new HH candidates, and groups. Six of these are HH 701A-B, HH 702A-D, HH 703, HH 704A-D, HH 705, HH 706 and the seventh is a group, a new component of HH 319, labeled HH 319B-D. Based on the large-scale distribution of pre-main-sequence (PMS) stars in Taurus, we analyze statistically the most probable distance from the HH objects to each PMS star, from which we estimate the typical timescale of these HH objects to be between $(1.3-2.0)× 104yrs; and we also obtain the birth rates of HH objects: 0.447±0.198 for Class I PMS stars, 0.360±0.222 for Class II PMS stars, and -0.148±0.234 for Class III PMS stars.
Chen Jian-Sheng
Deng Li Cai
Luo Shao-Guang
Sun Ke-Feng
Wang Min
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