Head-tail galaxies are
A) found most often in clusters.
B) dependent on an inter-galactic medium.
C) powered by jets in the nucleus of the galaxy.
D) a and b
E) a,b,and c
Correct Answer:
Verified
Q4: Quasars must be small because they
A) have
Q5: The fact that many radio lobes emit
Q6: The unified model describes active galactic nuclei
Q7: The tiny point sources of many quasars
Q10: The hot spots in the double-lobed radio
Q11: Recent high resolution radio observations show that
Q12: If the red shifts of quasars arise
Q13: Seyfert galaxies
A) are more common in close
Q14: The hot gas of a radio lobe
Q56: The central galaxy in a double-lobed radio
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