Sub-parsec-scale Accleration of the Radio Jet in the Powerful Radio Galaxy NGC 6251

(2)National Astronomical Observatory of Japan); H. Sudou (1); M. Inoue(2); O. Kaburaki(1); S. Kameno (2); S. Sawada-Satoh(2); T. Sasao(2) ((1)Tohoku University; Y. Ohyama (2); Y. Taniguchi (1)

arxiv: astro-ph/0008173 · v1 · pith:CA7FV5GZnew · submitted 2000-08-11 · 🌌 astro-ph

Sub-parsec-scale Accleration of the Radio Jet in the Powerful Radio Galaxy NGC 6251

H. Sudou (1) , Y. Taniguchi (1) , Y. Ohyama (2) , S. Kameno (2) , S. Sawada-Satoh(2) , M. Inoue(2) , O. Kaburaki(1) , T. Sasao(2) ((1)Tohoku University

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(2)National Astronomical Observatory of Japan)

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keywords radiogalaxyinvestigatepowerfulsub-parsec-scaleaccelerationacclerationallows

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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 Very Long Baseline Interferometer (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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Sub-parsec-scale Accleration of the Radio Jet in the Powerful Radio Galaxy NGC 6251

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