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Results of the SiO Maser Survey of the Galactic Bulge IRAS Sources

Published online by Cambridge University Press:  25 May 2016

S. Deguchi ,
N. Ukita ,
H. Izumiura ,
T. Ono ,
Y. Nakada ,
T. Onaka ,
I. Yamamura  and
O. Hashimoto
S. Deguchi
Affiliation:
Nobeyama Radio Observatory, National Astronomical observatory Minamimaki, Minamisaku, Nagano 384-13, Japan
N. Ukita
Affiliation:
Nobeyama Radio Observatory, National Astronomical observatory Minamimaki, Minamisaku, Nagano 384-13, Japan
H. Izumiura
Affiliation:
Department of Astronomy and Earth Sciences, Tokyo Gakugei University 4-1-1 Nukii-kita, Koganei, Tokyo 184, Japan
T. Ono
Affiliation:
Department of Astronomy and Earth Sciences, Tokyo Gakugei University 4-1-1 Nukii-kita, Koganei, Tokyo 184, Japan
Y. Nakada
Affiliation:
Kiso observatory, The University of Tokyo Mitake, Kiso, Nagano 397-13, Japan
T. Onaka
Affiliation:
Department of Astronomy, The University of Tokyo Bunkyo-ku, Tokyo 113, Japan
I. Yamamura
Affiliation:
Department of Astronomy, The University of Tokyo Bunkyo-ku, Tokyo 113, Japan
O. Hashimoto
Affiliation:
Department of Applied Physics, Seikei University 3-1-1 Kichijouji-kita, Musashino, Tokyo, 180, Japan

Extract

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Evidence for the bar structure in our Galaxy has been shown by Blitz and Spergel (1991b) based on the near-infrared maps of the bulge, by Nakada et al. (1991) based on IRAS point source catalogue, and more clearly by recent COBE maps. However, no clear “dynamical” signature of the bulge bar has been found yet. At optical wavelengths, stellar radial velocities of the bulge stars were observed only at the optical windows and were not observed for the entire region of the bulge because of the dust extinction in this direction.

Type
Chapter 2: Is the Milky Way a Barred Spiral Galaxy?
Information
Symposium - International Astronomical Union , Volume 169: Unsolved Problems of the Milky Way , 1996 , pp. 119 - 124
Copyright
Copyright © Kluwer 1996 

References

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