The hot spots in a double-lobed radio source
A)appear to coincide with the location of the central galaxy responsible for the jets.
B)are where hot excited gas interacts with the intergalactic medium.
C)are only found near quasars.
D)produce enough visible energy to be imaged at visible wavelengths.
E)are always perpendicular to each other.

Question

Quizplus · Accepted Answer

Hot spots in a double-lobed radio source are where hot excited gas interacts with the intergalactic medium, causing the emission of radio waves detected by radio telescopes. They are not necessarily associated with the central galaxy or quasars, and do not produce visible light. The orientation of the hot spots may vary depending on the orientation of the jets and the ambient medium.

The Hot Spots in a Double-Lobed Radio Source