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Interaction Between Magnetic Fields and Molecular Clouds on the Radio Arc

Published online by Cambridge University Press:  19 July 2016

M. Tsuboi ,
T. Handa+ ,
M. Inoue ,
J. Inatani  and
N. Ukita
M. Tsuboi
Affiliation:
Nobeyama Radio Observatory, Minamisaku, Nagano 384–13, Japan + Institute of Astronomy, University of Tokyo, Tokyo 181, Japan
T. Handa+
Affiliation:
Nobeyama Radio Observatory, Minamisaku, Nagano 384–13, Japan + Institute of Astronomy, University of Tokyo, Tokyo 181, Japan
M. Inoue
Affiliation:
Nobeyama Radio Observatory, Minamisaku, Nagano 384–13, Japan + Institute of Astronomy, University of Tokyo, Tokyo 181, Japan
J. Inatani
Affiliation:
Nobeyama Radio Observatory, Minamisaku, Nagano 384–13, Japan + Institute of Astronomy, University of Tokyo, Tokyo 181, Japan
N. Ukita
Affiliation:
Nobeyama Radio Observatory, Minamisaku, Nagano 384–13, Japan + Institute of Astronomy, University of Tokyo, Tokyo 181, Japan

Extract

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We have made observations of the Galactic center region in the CS J=1–0 and J=2–1 lines with the 45-m telescope at Nobeyama Radio Observatory in order to depict the fine structure and the activity of this region. We propose that several expanding molecular structures in this region are originated by successive supernova explosions at least of 102–3 times within 106 years. These may be responsible for strong magnetic fields in the Galactic center region. The interaction between one of the expanding molecular structures and the “vertical” filaments is found. From the appearance of the interaction, the magnetic field in the “vertical” filaments is estimated to be about 3–5 mGauss.

Type
7. Magnetic Fields in Galactic Nuclei
Information
Symposium - International Astronomical Union , Volume 140: Galactic and Intergalactic Magnetic Fields , 1990 , pp. 381
Copyright
Copyright © Kluwer 1990 

References

Seiradakis, J.H. et al. (1985) Nature 317, 697.Google Scholar
Tsuboi, M. et al. (1985) Publ. Astron. Soc. Japan 37, 359.Google Scholar
Tsuboi, M. et al. (1986) Astron. J. 92, 818.Google Scholar