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TRANSCRIPT
9LBM1^_7`a%b
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2008j1k18l
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12345-46, astrometry7
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100&g�5±& @ 10 kpc
– �²³´µ¶·¸¹(VLBI)º»'
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VSOP-2 (VLBI Space Observatory Programme-2)
2012jÉÊËÌÍ�q �V
-%.%!/0"*1astrometry7
• '()*+"mTGnVERA2345-46"$%&
– 9FGUVop##+9FGUVqrstpD=2%6 kpc
– uvwxy91z{#+97|OH/IR91##+97'()uvwxy9X}%y~��3�%6i`�"
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– '()z�9� D=R0~7.5 kpc
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– '()��� RGal>15 kpc, D>8 kpc 1 �V¡¢7
– #{&£vi¤ (RGal ~50 kpc)
– '()¥a¦ (D~6-10 kpc)
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D=8.0+0.9-0.7 kpc
(Imai, Sahai & Morris, 2007
ApJ, 669, 424)
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• 9LZ!""*Ô `¶"*(polarimetry) with·¸"
• '() v.s. #{&£vi¤
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