ChJAA Vol 3, No 1 (2003) / Qin

A Study of Star Formation in BRC18

Sheng-Li Qin, Yue-Fang Wu

Abstract

Using the 13.7 m radio telescope at Delingha, the millimeter-wave radio observatory of Purple Mountain Observatory, we made mapping observations in 12CO J=1–0 line towards IRAS 05417+0907, located in the bright-rimmed cloud (BRC) BRC18. We used a 7×7 grid with 1' spacing, a finer and larger grid than the one used by Myers et al. Our results show that there is a bipolar outflow near IRAS 05417+0907. Combining with the observations at other wave bands, we find that the star formation process in this region is triggered by radiation-driven implosion. The significant difference between the masses of BRC18 and the cores and the relatively large ratio of associated source bolometric luminosity to the mass show that the star formation in BRC18 may be taking place in a sequence.

Keywords


ISM: clouds --- star: formation --- individual: IRAS 05417+0907

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