A massive star-forming region in a very early stage of evolution

Details A massive star-forming region in a very early stage of evolution A massive star-forming region in a very early stage of evolution

2002-05-24

arxiv.org/abs/astro-ph/0205440v1

Astronomy and Astrophysics

Astrophysics

5 pages, 4 figures, conference proceedings: Galactic Star Formation Across the Stellar Mass Spectrum

Scientific paper

We present results from a study of two luminous IRAS sources thought to be young massive star-forming regions and which have no previously detected radio continuum emission: IRAS 15596-5301 and IRAS 16272-4837. Our study incorporates sensitive ATCA radio continuum data, SEST 1.2-mm continuum (using the new SIMBA bolometer) and line data, as well as data taken from the MSX database. The results show that both sources are associated with dense molecular cores which appear to host recently formed massive stars. We argue that IRAS16272 is in a very early stage of evolution, prior to the formation of an ultra compact HII region and that IRAS15596 is in a more advanced stage and hosts a cluster of B-type stars.

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