천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제40권2호
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- Pages.37.1-37.1
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- 2015
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- 1226-2692(pISSN)
Proving the Evolution of Relativistic Jet of Radio-Loud AGN, OVV 1633+382
- Ro, Hyunwook (Department of Astronomy, Yonsei University) ;
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Sohn, Bong Won
(Korea Astronomy and Space Science Institute) ;
- Chung, Aeree (Department of Astronomy, Yonsei University) ;
- Krichbaum, Thomas P. (Max-Planck-Institut fur Radioastronomie)
- 발행 : 2015.10.15
초록
It is suggested that relativistic jets associated with active galactic nuclei (AGNs) can have great impacts on the evolution of the host galaxy. However, the physical properties of AGN jets including the formation mechanism are not well known to date, and hence the AGN feedback on the host galaxy is yet poorly understood. OVV 1633+382 as a highly variable AGN source (a.k.a. blazer) with a compact core and very well developed jet components is an excellent laboratory to study the jet formation mechanism of radio-loud AGN. Near 2002, a major flare was reported at mm wavelength with a dramatic increase of the flux, which is likely to be followed by a dense and bright outflow. In order to probe the evolution of the innermost region of this radio-loud AGN, we have monitored using the Very Large Baseline Array (VLBA) and the Effelsberg 100m single-dish radio telescope in 12 epochs from 2002 and 2005. The observations were conducted at 22, 43 and 86 GHz in full polarization mode. In this work, we present the intensity and spectral index maps at 22 and 43 GHz from our monitoring observations. We probe the kinematics and geometry of individual jet components to discuss the evolution of the jet.
키워드