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What is believed to be the origin of a head-tail radio source?(a)Two oppositely directed jets of ...

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What is believed to be the origin of a head-tail radio source?(a)Two oppositely directed jets of ...

What is believed to be the origin of a head-tail radio source?

(a)   Two oppositely directed jets of material ejected from the core of a galaxy are being swept backward by an intergalactic medium.
(b)   Interstellar gas and dust is being swept from a galaxy by its passage through the intergalactic medium in a cluster of galaxies.
(c)   A single jet of material was ejected from the core of a galaxy and is gradually dispersing in the intergalactic medium of a galaxy cluster.

Textbook

Discovering the Universe

Edition: 7^th

Authors: Kaufmann, Comins

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