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A Sub-pc-scale Acceleration of the Radio Jet of NGC 6251

  • Hiroshi Sudou (a1), Yoshiaki Taniguchi (a1), Osamu Kaburaki (a1), Youichi Ohyama (a2), Seiji Kameno (a2), Satoko Sawada-Satoh (a2), Makoto Inoue (a2) and Tetsuo Sasao (a2)...

Abstract

In order to investigate the genesis of powerful radio jet, we have mapped the central 10 pc region of the nearby radio galaxy NGC 6251 with a 0.2 pc resolution using VLBI at two radio frequencies, 5 GHz and 15 GHz, we have found the sub-parsec-scale counterjet for the first time in this radio galaxy. This discovery allows us to investigate the jet acceleration based on the relativistic beaming model.

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References

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Jones, D. L. et al. 1986, ApJ, 305, 684.
Hirabayashi, H. et al. 1998, Science, 281, 1825.

A Sub-pc-scale Acceleration of the Radio Jet of NGC 6251

  • Hiroshi Sudou (a1), Yoshiaki Taniguchi (a1), Osamu Kaburaki (a1), Youichi Ohyama (a2), Seiji Kameno (a2), Satoko Sawada-Satoh (a2), Makoto Inoue (a2) and Tetsuo Sasao (a2)...

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