SCYON Abstract

Received on November 20 2006

Triggered Star Formation in OB Associations

Authors	W.P. Chen, Hsu-Tai Lee Lee, and K. Sanchawala
Affiliation	Graduate Institute of Astronomy, National Central University, Taiwan
To appear in	IAU Symposium 237
Contact	wchen@astro.ncu.edu.tw
URL	http://www.astro.ncu.edu.tw
Links	Trumpler 16 / Mon R2

Abstract

We present causal and positional evidence of triggered star formation in bright-rimmed clouds in OB associations, e.g., Ori OB1, and Lac OB1, by photoionization. The triggering process is seen also on a much larger scale in the Orion-Monoceros Complex by the Orion-Eridanus Superbubble. We also show how the positioning of young stellar groups surrounding the HII region associated with Trumpler 16 in Carina Nebula supports the triggering process of star formation by the collect-and-collapse scenario.