Fragmentation in Massive Star Formation

Details Fragmentation in Massive Star Formation Fragmentation in Massive Star Formation

2004-02-20

arxiv.org/abs/astro-ph/0402501v2

Science 303 (2004) 1167-1169

Astronomy and Astrophysics

Astrophysics

5 pages text plus 2 figures

Scientific paper

10.1126/science.1094014

Studies of evolved massive stars indicate that they form in a clustered mode. During the earliest evolutionary stages, these regions are embedded within their natal cores. Here, we show high-spatial-resolution interferometric dust continuum observations disentangling the cluster-like structure of a young massive star-forming region. The derived protocluster mass distribution is consistent with the stellar initial mass function. Thus, fragmentation of the initial massive cores may determine the initial mass function and the masses of the final stars. This implies that stars of all masses can form via accretion processes, and coalescence of intermediate-mass protostars appears not to be necessary.

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