The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 37 Issue 2
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- Pages.238.2-238.2
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- 2012
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- 1226-2692(pISSN)
Toward early scientific results on AGNs: 'KAVA'(KVN and VERA array) joint AGN WG report
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Sohn, Bong Won
(Korea Astronomy and Space Science Institute)
;
- Kino, Motoki (National Astronomical Observatory of Japan) ;
- Niinuma, Kotaro (Yamaguchi University) ;
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Lee, Sang-Sung
(Korea Astronomy and Space Science Institute)
;
- Honma, Mareki (National Astronomical Observatory of Japan) ;
- Nagai, Hiroshi (National Astronomical Observatory of Japan) ;
- Sascha, Sascha Trippe (Seoul National University) ;
-
Jung, Taehyun
(Korea Astronomy and Space Science Institute)
- Published : 2012.10.17
Abstract
We report the results of KVN-VERA('KAVA'; KVN and VERA Arrary) AGN WG test observation in 2011 and 2012. The results from these commisioning years show that 'KAVA' is able to produce noble images of radio loud AGNs at 22 and 43GHz. This dedicated high frequency VLBI facility will be especially competitive for the regions where conventional low freuquency facilities see the optically thick part of synchrotron radiation. In the second part of this talk, we report the early science activities of the AGN WG. Sgr A*, Jet acceleration zone of M87, extremely young radio galaxies are the prime cadidates of the joint activities. Lastly we will stress how the phase-referencing 'KAVA' does enhance the imaging sensitivity and open new era of VLBI AGN researches.
Keywords