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Observed Characteristics of Protostellar Disks

Published online by Cambridge University Press:  04 August 2017

Norio Kaifu
Norio Kaifu*
Affiliation:
Nobeyama Radio Observatory, Tokyo Astronomical Observatory, University of Tokyo, Nobeyama, Minamisaku, Nagano 384-13, Japan

Abstract

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Detailed structures in the central parts of several star forming regions have been observed with the Nobeyama 45-m telescope. The disk and flow systems observed in L1551, R Mon, GL490 and S106 regions show the following common characteristics: (1) Double-peaked appearance with a thin central part around the IR source, (2) Cavities exist on both polar sides of the disk, and the low velocity molecular flow fits the shape of the cavity wall and the pattern of the reflection nebula. (3) The flow seems to be accelerated gradually along the wall of the cavity. An empirical model based on these results is discussed.

Type
I. Star Forming Processes in the Solar Neighborhood
Information
Symposium - International Astronomical Union , Volume 115: Star Forming Regions , 1987 , pp. 275 - 285
Copyright
Copyright © Reidel 1987 

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