EVLA Continuum Observations of Massive Protostars

Astronomy and Astrophysics – Astronomy

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Scientific paper

The study of the formation of massive stars throughout the galaxy was enabled by sensitive radiointerferometers like the VLA, which were instrumental in defining ultra/hypercompact HII region as an early manifestation of newly formed massive stars. At yet younger evolutionary phases we expect emission to be dominated by molecular lines from hot molecular cores with radio continuum emission extremely weak. The availability of the strongly increased continuum sensitivity of the EVLA allows now to begin to observe massive protostars in the radio continuum. Here we present some preliminary results of a large continuum survey which we are presently performing towards a large sample of massive protostars.
This research is supported by NSF grant AST-0908901.

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