Hogerheijde, Michiel R. and van Dishoeck, Ewine F. and Blake, Geoffrey A. (1999) Observations of dust and molecules in the disks and envelopes of young stellar objects. In: Formation and evolution of solids in space. NATO Advanced Science Institutes Series, Series C, Mathematical and Physical Sciences. No.523. Kluwer Academic , Boston, MA, pp. 521-526. ISBN 0-7923-5474-5 http://resolver.caltech.edu/CaltechAUTHORS:20121002-101130930
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Observations of dust and gas-phase molecules are compared as probes of the embedded phase of low-mass star formation. Results are presented of a detailed study of a sample of low-mass young stellar objects in Taurus with single-dish and interferometer millimeter observations. At least 67% of the objects have compact circumstellar disks, in addition to extended envelopes. HCO^+ is found to be an excellent tracer of envelope structure. Interferometer observations of its 1-0 line, and of ^(13)CO and C^(18)O, reveal the kinematics of the equatorial regions of the envelopes, and the interaction with the bipolar outflows.
|Item Type:||Book Section|
|Additional Information:||© 1999 Kluwer Academic Publishers. MRH gratefully acknowledges financial support from the Stimuleringsfonds Internationalisering of the Netherlands Organization for Scientific Research (NWO) and from the organizers of this School|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||02 Oct 2012 17:54|
|Last Modified:||02 Oct 2012 17:54|
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