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Title

Magnetic Fields in the Formation of Massive Stars

AuthorsGirart, Josep Miquel CSIC ORCID ; Beltrán, María Teresa CSIC ORCID; Zhang, Qizhou; Rao, Ramprasad; Estalella, Robert
Issue Date12-Jun-2009
PublisherAmerican Association for the Advancement of Science
CitationScience 324(5933): 1408-1411 (2009)
AbstractMassive stars play a crucial role in the production of heavy elements and in the evolution of the interstellar medium, yet how they form is still a matter of debate. We report high-angular-resolution submillimeter observations toward the massive hot molecular core (HMC) in the high-mass star-forming region G31.41+0.31. We find that the evolution of the gravitational collapse of the HMC is controlled by the magnetic field. The HMC is simultaneously contracting and rotating, and the magnetic field lines threading the HMC are deformed along its major axis, acquiring an hourglass shape. The magnetic energy dominates over the centrifugal and turbulence energies, and there is evidence of magnetic braking in the contracting core.
Description4 pages.
Publisher version (URL)http://dx.doi.org/10.1126/science.1171807
URIhttp://hdl.handle.net/10261/13623
DOI10.1126/science.1171807
ISSN0036-8075
E-ISSN1095-9203
Appears in Collections:(ICE) Artículos

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