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VLBI Observations of H2O and SiO Masers in Late Type Stars

Published online by Cambridge University Press:  12 April 2016

H. Takaba ,
T. Iwata ,
M. Miyoshi ,
N. Ukita ,
S. Kameno  and
K. Matumoto
H. Takaba
Affiliation:
Communications Research Laboratory, 893-1 Kashima, Ibaraki, 314, Japan
T. Iwata
Affiliation:
Communications Research Laboratory, 893-1 Kashima, Ibaraki, 314, Japan
M. Miyoshi
Affiliation:
Nobeyama Radio Observatory, Minamisaku, Nagano, 384-13, Japan
N. Ukita
Affiliation:
Nobeyama Radio Observatory, Minamisaku, Nagano, 384-13, Japan
S. Kameno
Affiliation:
Nobeyama Radio Observatory, Minamisaku, Nagano, 384-13, Japan
K. Matumoto
Affiliation:
Nobeyama Radio Observatory, Minamisaku, Nagano, 384-13, Japan

Abstract

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The results of a VLBI observation between Kashima 34 m and Nobeyama 45 m are presented. Water maser at 22.235 GHz and SiO masers at 43 GHz in some late type stars are mapped almost simultaneously. Data reduction is still on the way, then we report mainly for the blocking model of H2O maser.

Type
1. Recent Developments and Upgrading Plans for the Near Future
Information
International Astronomical Union Colloquium , Volume 140: Astronomy with Millimeter and Submillimeter Wave Interferometry , 1994 , pp. 62 - 63
Copyright
Copyright © Astronomical Society of the Pacific 1994

References

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Takaba, H. 1992 Proceedings of the Astropysical Masers Conference, Splinger Verlag, in pressGoogle Scholar