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Radio continuum and radio recombination line observations of the Galactic center lobe

Published online by Cambridge University Press:  22 May 2014

Halca Nagoshi ,
Kenta Fujisawa  and
Yuzo Kubose
Halca Nagoshi
Affiliation:
Graduate school of Science and Engineering, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi 753-8512, Japan email: [email protected]
Kenta Fujisawa
Affiliation:
Department of Physics, Faculty of Science, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi 753-8512, Japan email: [email protected]
Yuzo Kubose
Affiliation:
Graduate school of Science and Engineering, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, Yamaguchi 753-8512, Japan , Japan email: [email protected]
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Abstract

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Radio continuum (cont) and radio recombination line (RRL) observations with the Yamaguchi 32-m radio telescope toward the lower part of the Galactic center lobe (GCL) in the Galactic center region are presented. While two ridges of the GCL were seen in both continuum and RRL images, the spatial coverage of the ridges of the continuum and RRL is not coincident. We distinguish the continuum emission of the GCL into thermal and non-thermal emission by assuming an electron temperature of the ionized gas of 4370 K, estimated based on the line width (14.1 km s−1). The thermal emission was found to be located inside and surrounded by the non-thermal emission.

Keywords

(ISM:) Hii regionsradio continuum: ISMradio lines: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S303: The Galactic Center: Feeding and Feedback in a Normal Galactic Nucleus , October 2013 , pp. 129 - 131
Copyright
Copyright © International Astronomical Union 2014 

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