ALMA Reveals Cradles of Dense Cores: the Birthplace of Massive Stars

Taiwanese research team used the Atacama Large Millimeter/submillimeter Array (ALMA) to observe a large molecular gas clump — named G33.92+0.11 — where a cluster of massive stars is forming.  ALMA revealed, in unprecedented detail, the fine structure of the molecular gas at the center of the region, where two surprisingly large molecular gas arms about 3 light-years across, appear to be spiraling around two massive molecular cores.

These results show that the large molecular arms are indeed the cradles of dense cores, which are current or future birthplaces of massive stars. These results represent a crucial step forward in the understanding of how mass distributes to form both massive cores and massive stars.

Details on this result can be found here.

Contact:

Valeria Foncea
Education and Public Outreach Officer
Joint ALMA Observatory
Santiago, Chile
Tel: +56 2 467 6258
Cell: +56 9 75871963
Email: vfoncea@alma.cl

Masaaki Hiramatsu
Education and Public Outreach Officer, NAOJ Chile
Observatory Tokyo, Japan
Tel: +81 422 34 3630
E-mail: hiramatsu.masaaki@nao.ac.jp

Charles E. Blue
Public Information Officer
National Radio Astronomy Observatory
Charlottesville, Virginia, USA
Tel: +1 434 296 0314
Cell: +1 434.242.9559
E-mail: cblue@nrao.edu

Richard Hook
Public Information Officer, ESO
Garching bei München, Germany
Tel: +49 89 3200 6655
Cell: +49 151 1537 3591
Email: rhook@eso.org

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