Other
Scientific paper
Oct 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1053...95s&link_type=abstract
OBSERVATIONAL EVIDENCE FOR BLACK HOLES IN THE UNIVERSE: Proceedings of the 2nd Kolkata Conference on Observational Evidence for
Other
Galactic Center, Bar, Circumnuclear Matter, And Bulge, Astrometric And Interferometric Instruments, Galactic Nuclei, Circumnuclear Matter, And Bulges
Scientific paper
The central region of our Galaxy (Sgr A*) is the nearest galactic center harboring a massive black hole. The environment around Sgr A* is a topic of interest to diverse fields. We are interested in gas feeding from giant molecular clouds (GMC) within 10 pc of the Galactic center to the Circumnuclear Ring (CND), which is presumable A˛glay-down bay A˛h of infalling gas toward Sgr A*. In order to reveal the mechanism, we observed SiO J = 2-1 ν = 0 and H13CO+ J = 1-0 lines using the Nobeyama Millimeter Array (NMA). We depicted the CND clearly in SiO line. Molecular gas in CND rotates interacting each other. We observed two molecular streamers to CND in SiO line. One is a new detection. The line intensity ratios at overlapping points of streamers with CND are significantly higher (I(SiO)/I(H13CO+)>8) than the average of CND (about 2-4). This is a strong evidence indicating these streamers are connecting to the CND.
Sato Mamiko T.
Tsuboi Masato
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