Juan Li, Tao An, Zhi-Qiang Shen, Atsushi Miyazaki
Published 2010-02-05Version 1
We present sensitive Australia Telescope Compact Array (ATCA) observations of SiO masers in the inner parsecs of the Galactic center (GC). We detected five SiO J=2-1, v=1 (86 GHz) masers in the innner 25 arcsec (1 pc) of the GC. All the detected 86 GHz SiO masers are previously known SiO J=1-0, v=1 (43 GHz) masers and associated with late-type stars. Eighteen 43 GHz SiO masers were detected within 50 arcsec (2 pc) of Sagittarius A*. Among them, seven are detected for the first time, which brings the total number of 43 GHz SiO masers to 22 in this region.
Comments: 2 pages, 1 figure, Proceedings article for the Galactic Center Workshop 2009, Shanghai. The conference proceedings will be published in the Astronomical Society of the Pacific Conference Series
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