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Cyanoacetylene Observations of B335

Published online by Cambridge University Press:  04 August 2017

Tatsuhiko Hasegawa ,
Osamu Kameya ,
Naomi Hirano ,
Munezo Seki  and
Keiya Takakubo
Tatsuhiko Hasegawa
Affiliation:
Astronomical Institute, Tohoku University, Sendai, Japan
Osamu Kameya
Affiliation:
Astronomical Institute, Tohoku University, Sendai, Japan
Naomi Hirano
Affiliation:
Astronomical Institute, Tohoku University, Sendai, Japan
Munezo Seki
Affiliation:
Astronomical Institute, Tohoku University, Sendai, Japan
Keiya Takakubo
Affiliation:
Astronomical Institute, Tohoku University, Sendai, Japan

Extract

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B335 is now recognized as the smallest isolated star forming region. The detection of a Far-IR source and a bipolar flow were succesful, on the other hand, the distribution of the quiet gas is poorly understood. We are trying to determine the density distribution in B335. As the first step, we have carried out HC3N (J = 5-4 and 4-3) observations of B335. The observations of the J = 5-4 line have revealed a high density core with a 30″-60″ size. The Far-IR source is located just at the center of the core, and the core lies at the center of the bipolar flow. A mean hydrogen molecular density in the core of about 5x104 cm−3 is derived from the line ratio J – 5-4/4-3.

Type
I. Star Forming Processes in the Solar Neighborhood
Information
Symposium - International Astronomical Union , Volume 115: Star Forming Regions , 1987 , pp. 78
Copyright
Copyright © Reidel 1987