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Ground-state OH maser distributions in the Galactic Centre region

Published online by Cambridge University Press:  09 February 2017

Hai-Hua Qiao Open the ORCID record for Hai-Hua Qiao [Opens in a new window] ,
Andrew J. Walsh ,
Zhi-Qiang Shen  and
Joanne R. Dawson
Hai-Hua Qiao
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai, China, 200030 email: haihua.qiao@student.curtin.edu.au International Centre for Radio Astronomy Research, Curtin University, GPO Box U1987, Perth WA 6845, Australia Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, China University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, China, 100049
Andrew J. Walsh
Affiliation:
International Centre for Radio Astronomy Research, Curtin University, GPO Box U1987, Perth WA 6845, Australia
Zhi-Qiang Shen
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai, China, 200030 email: haihua.qiao@student.curtin.edu.au Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, China
Joanne R. Dawson
Affiliation:
Department of Physics and Astronomy and MQ Research Centre in Astronomy, Astrophysics and Astrophotonics, Macquarie University, NSW 2109, Australia
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Abstract

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Ground-state OH masers identified in the Southern Parkes Large-Area Survey in Hydroxyl were observed with the Australia Telescope Compact Array to obtain positions with high accuracy (~1 arcsec). We classified these OH masers into evolved star OH maser sites, star formation OH maser sites, supernova remnant OH maser sites, planetary nebula OH maser sites and unknown maser sites using their accurate positions. Evolved star and star formation OH maser sites in the Galactic Centre region (between Galactic longitudes of −5° to +5° and Galactic latitudes of −2° and +2°) were studied in detail to understand their distributions.

Keywords

masersstars: AGB and post-AGBstars: formationGalaxy: center
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S322: The Multi-Messenger Astrophysics of the Galactic Centre , July 2016 , pp. 141 - 142
Copyright
Copyright © International Astronomical Union 2017 

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