Multiple outflows from the luminous YSO IRAS 07422-2001

The luminous young stellar object (YSO) IRAS 07422-2001 is studied in the infrared (IR). The authors discover star forming activity in embedded clusters located in a cloud detected at mid-IR wavelengths in emission. Multiple outflows are discovered from these clusters in the H sub( 2) ro-vibrational...

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Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2012-04, Vol.540, p.1-1
Main Author: Varricatt, W P
Format: Article
Language:English
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Summary:The luminous young stellar object (YSO) IRAS 07422-2001 is studied in the infrared (IR). The authors discover star forming activity in embedded clusters located in a cloud detected at mid-IR wavelengths in emission. Multiple outflows are discovered from these clusters in the H sub( 2) ro-vibrational line at 2.122 mu m. They detect at least six outflows from the cluster associated with the IRAS source and another outflow from a source located in a cluster detected similar to 2.7 arcmin NE of the IRAS source. The spectral energy distributions of the dominant YSOs in the cluster associated with the IRAS source and in the NE cluster are studied using radiative transfer models and the properties of the YSOs are estimated. The star formation observed in the field of IRAS 07422-2001 supports the idea of hierarchical formation of massive star clusters and the growth of massive young stellar objects near the centres of multiple sub-clusters in a star forming clump through competitive accretion.
ISSN:0004-6361
1432-0746