Monday, November 28, 2005

Formation of massive stars

As discussed before, there are two models of the star formation process: accretion and gravitational collapse. Computer modeling pointed toward the second possibility as more likely. Now there is additional evidence of this, at least in the case of massive stars.

How do massive stars form?
The locations of all the structures that were picked out at various wavelengths agree very well with the predictions of the collect and collapse process. The conclusions drawn by the team largely rely on the morphological relations between these structures. The combined picture of RCW 79 they obtained is therefore a straightforward illustration of the triggered massive-star formation process that now occurs in this region. These observations show that the collect and collapse process is the main triggering agent of massive star formation observed on the borders of this region.



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