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The VLBI mapping survey of the 6.7 GHz methanol masers with the JVN/EAVN

Published online by Cambridge University Press:  24 July 2012

K. Fujisawa ,
K. Hachisuka ,
K. Sugiyama ,
A. Doi ,
M. Honma ,
Y. Yonekura ,
T. Hirota ,
S. Sawada-Satoh ,
Y. Murata  and
K. Motogi
...Show all authors
K. Fujisawa
Affiliation:
The Research Institute of Time Studies, Yamaguchi Univ., 1677-1 Yoshida, Yamaguchi, Yamaguchi 753-8511, Japan email: [email protected]
K. Hachisuka
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
K. Sugiyama
Affiliation:
Dept. of Physics, Yamaguchi Univ., 1677-1 Yoshida, Yamaguchi, Yamaguchi 753-8512, Japan
A. Doi
Affiliation:
Institute of Space and Astronautical Science, JAXA, Yoshinodai 3-1-1, Chuo-ku, Sagamihara, Kanagawa 252-5210, Japan
M. Honma
Affiliation:
Mizusawa VLBI Observatory, NAOJ, Hoshigaoka-cho 2-12, Oshu, Iwate 023-0861, Japan
Y. Yonekura
Affiliation:
Center for Astronomy, Ibaraki Univ., 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
T. Hirota
Affiliation:
Mizusawa VLBI Observatory, NAOJ, Hoshigaoka-cho 2-12, Oshu, Iwate 023-0861, Japan
S. Sawada-Satoh
Affiliation:
Mizusawa VLBI Observatory, NAOJ, Hoshigaoka-cho 2-12, Oshu, Iwate 023-0861, Japan
Y. Murata
Affiliation:
Institute of Space and Astronautical Science, JAXA, Yoshinodai 3-1-1, Chuo-ku, Sagamihara, Kanagawa 252-5210, Japan
K. Motogi
Affiliation:
Dept. of Cosmosciences, Hokkaido Univ., N10 W8, Sapporo 060-0810, Japan
H. Ogawa
Affiliation:
Graduate School of Science, Osaka Pref. Univ., 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
X. Chen
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
K.-T. Kim
Affiliation:
Korea Astronomy and Space Science Institute, Hwaam-Dong, Yuseong-Gu, Daejeon 305-348, Korea
Z.-Q. Shen
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
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Abstract

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We present VLBI maps of the 6.7 GHz methanol maser emission in 32 sources obtained using the Japanese VLBI Network (JVN) and the East-Asian VLBI Network (EAVN). All of the observed sources provide new VLBI maps, and the spatial morphologies have been classified into five categories similar to the results obtained from European VLBI Network observations (Bartkiewicz et al. 2009). The 32 methanol sources are being monitored to measure the relative proper motions of the methanol maser spots.

Keywords

Stars: formationMasers: methanolInstrumentation: high angular resolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S287: Cosmic Masers - from OH to H0 , January 2012 , pp. 288 - 289
Copyright
Copyright © International Astronomical Union 2012

References

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