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The Environment of Hercules A

Published online by Cambridge University Press:  25 May 2016

N.A.B. Gizani  and
J.P. Leahy
N.A.B. Gizani
Affiliation:
University of Manchester, NRAL, Jodrell Bank, Cheshire, SK11 9DL, UK.
J.P. Leahy
Affiliation:
University of Manchester, NRAL, Jodrell Bank, Cheshire, SK11 9DL, UK.

Extract

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The bright radio galaxy Hercules A (z = 0.154), has power P178MHz = 8 × 1026 W Hz–1sr–1 and although this puts it well above the FR break, its structure is intermediate between Fanaroff and Riley classes I and II. With a linear size of 334 kpc (for H0 = 100 kms–1Mpc–1), Hercules A possesses an unusual jet-dominated morphology and no compact hotspots. The western jet shows partial or full ring-like features that form a linear sequence heading from the core to the lobes and follow an inner jet.

Type
Radio Sources and their Environment
Information
Symposium - International Astronomical Union , Volume 175: Extragalactic Radio Sources , 1996 , pp. 351 - 352
Copyright
Copyright © Kluwer 1996 

References

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