2008

Massive molecular outflows associated with UCHII/HII regions

Qin, Sheng-Li, Wang, Jun-Jie, Zhao, Gang et al.

Understand

Aims: We searched for the molecular outflows from fifteen molecular clouds associated with ultra-compact and compact HII (UCHII/HII) regions and discussed possible gas heating mechanism.

  • Methods: Mapping observations of CO $J=3-2$ and $J=2-1$ lines were carried out with the KOSMA 3m-Telescope towards the 15 HII regions/molecular cloud complexes.
  • Results: Ten molecular outflows were identified out of the fifteen HII region/molecular cloud complexes.
  • The higher outflow detection rate (67%) suggested that such outflows are as common in high mass star forming regions as those in low mass star forming regions, which is consistent with the results of other authors.

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