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High angular resolution observations of the gas phase composition of young stellar objects

Published online by Cambridge University Press:  25 May 2016

Geoffrey A. Blake
Geoffrey A. Blake*
Affiliation:
Division of Geological and Planetary Sciences, Caltech 170-25, Pasadena, CA 91125, USA

Abstract

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Recent advances in the observational characterization of young stellar objects (YSOs) with millimeter-wave aperture synthesis arrays and (sub)millimeter single dish telescopes are reviewed. Studies of circumstellar material with ∼arc second resolution, which have only become possible at these frequencies within the past few years and which can potentially probe all stages of the star formation process, are emphasized. Molecules that are sensitive to different routes of formation and modification are outlined, including comments about their utility in distinguishing between a variety of environments and histories in star-forming cloud cores.

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