The type of galaxy where we can track its motion through the intergalactic medium is a:
A)blazar.
B)quasar.
C)pulsar.
D)Head-Tail Radio Galaxy.
E)Seyfert galaxy.

Question

Quizplus · Accepted Answer

A Head-Tail Radio Galaxy has a characteristic shape where its massive jets are bent in a specific direction due to motion through the intergalactic medium. This allows us to track its motion and study its environment. The other choices are not associated with this particular characteristic. Head-Tail Radio Galaxies have an elongated shape with a head and tail due to the galaxy's motion through the intergalactic medium. This causes the radio jets emitted from the galaxy to bend and create the head-tail shape.

The Type of Galaxy Where We Can Track Its Motion