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Radio observations of jets from massive young stars

Published online by Cambridge University Press:  24 February 2011

Luis F. Rodríguez
Luis F. Rodríguez*
Affiliation:
Centro de Radiostronomía y Astrofísica, UNAM A. P. 3-72, (Xangari), 58089 Morelia, Michoacán, México email: l.rodriguez@crya.unam.mx
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Abstract

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The formation of low mass stars takes place with the assistance of an accretion disk that transports gas and dust from the envelope of the system to the star, and a jet that removes angular momentum and allows accretion to proceed. In the radio, these ionized jets can be studied very close to the star via the thermal (free-free) emission they produce and at larger scales by the molecular outflows that result from their interaction with the surrounding medium. Is the same disk-jet process responsible for the formation of massive stars? I will review recent evidence for the presence of collimated jets and accretion disks in association with forming massive stars. The jets in massive protostars have large velocities that could produce a synchrotron component and I discuss the evidence for the presence of this non-thermal process in the jet associated with the HH 80-81 system.

Keywords

radiation mechanisms: nonthermalstars: formationISM: jets and outflows
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S275: Jets at all Scales , September 2010 , pp. 367 - 373
Copyright
Copyright © International Astronomical Union 2011

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