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The parsec-scale nucleus and jets of Hydra A

Published online by Cambridge University Press:  25 May 2016

Gregory B. Taylor
Gregory B. Taylor*
Affiliation:
NRAO P.O. Box 0, Socorro, NM 87801

Extract

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Sensitive, high-resolution VLBA observations of the nuclear region of Hydra A are presented at 1.3, 5 and 15 GHz. Hydra A (3C218) is an outstanding example of a high-luminosity FRI radio galaxy embedded within a cooling flow cluster. VLA observations by Taylor & Perley (1993) have demonstrated extremely high (>5000 radians m–2) Faraday rotation measures (RMs) and a striking RM and depolarization asymmetry between the northern and southern radio lobes. In view of this asymmetry on the kpc-scale Hydra A appears remarkably symmetric on the pc-scale in the radio continuum. Hydra A is also unusual in that the 21 cm atomic Hydrogen line is seen in absorption against the nucleus.

Type
Properties of Radio Sources
Information
Symposium - International Astronomical Union , Volume 175: Extragalactic Radio Sources , 1996 , pp. 133 - 135
Copyright
Copyright © Kluwer 1996 

References

Dwarakanath, K.S., Owen, F.N., & van Gorkom, J.H. (1995) ApJL , 442, pp. L1–L4 CrossRefGoogle Scholar
Shepherd, M.C., Pearson, T.J., & Taylor, G.B. (1995) BAAS , 27, pp. 903–907 Google Scholar
Taylor, G.B., & Perley, R.A. (1993) ApJ , 416, pp. 554–562 Google Scholar
Feretti, L., Comoretto, G., Giovannini, G., Venturi, T., & Wehrle, A.E. (1993) ApJ , 408, pp. 446–451 Google Scholar