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Drama of HII regions: Clustered and Triggered Star Formation

  • Jin-Zeng Li (a1), Jinghua Yuan (a1), Hong-Li Liu (a1), Yuefang Wu (a2) and Ya-Fang Huang (a1)...

Abstract

In order to understand the star formation process under the influence of H ii regions, we have carried out extensive investigations to well selected star-forming regions which all have been profoundly affected by existing massive O type stars. On the basis of multi-wavelength data from mid-infrared to millimeter collected using Spitzer, Herschel, and ground based radio telescopes, the physical status of interstellar medium and star formation in these regions have been revealed. In a relatively large infrared dust bubble, active star formation is undergoing and the shell is still expanding. Signs of compressed gas and triggered star formation have been tentatively detected in a relatively small bubble. The dense cores in the Rosette Molecular Complex detected at 1.1 mm using SMA have been speculated to have a likely triggered origin according to their spatial distribution. Although some observational results have been obtained, more efforts are necessary to reach trustworthy conclusions.

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References

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Li, J.-Z., Mallamaci, C. C., César Podestà, R., et al. 2013, RAA, 13, 719
Liu, H.-L., Wu, Y., Li, J., et al. 2015, ApJ, 798, 30
Yuan, J.-H., Wu, Y., Li, J. Z., & Liu, H. 2014, ApJ, 797, 40
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Drama of HII regions: Clustered and Triggered Star Formation

  • Jin-Zeng Li (a1), Jinghua Yuan (a1), Hong-Li Liu (a1), Yuefang Wu (a2) and Ya-Fang Huang (a1)...

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