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Deducing the orbit of the radio galaxy 3C 129

  • K. Nilsson (a1), M. Valtonen (a1), J.-Q. Zheng (a1), G. Byrd (a2), H. Korhonen (a2) and M. I. Andersen (a3)...

Abstract

We have obtained new optical spectra of the radio galaxy 3C 129 and the giant galaxy close to it. From these spectra we deduce a relative radial velocity of 710 km s−1 between the two galaxies. Using the orbit calculations of Byrd & Valtonen (1978) and the new observations we obtain a new value, 3.3 × 1014 M , for the mass of the system.

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References

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Byrd, G. & Valtonen, M.J. 1978, ApJ, 221, 481
Jägers, , 1987, A&AS, 71, 603
Spinrad, H. 1975, ApJ, 199, L1
White, D.A., Jones, C. & Forman, W. 1998, MNRAS, 292, 419

Deducing the orbit of the radio galaxy 3C 129

  • K. Nilsson (a1), M. Valtonen (a1), J.-Q. Zheng (a1), G. Byrd (a2), H. Korhonen (a2) and M. I. Andersen (a3)...

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