What is the relationship between blazars (intense, rapidly varying nonthermal sources of polarized radio radiation) and double-lobed radio sources?
A)A blazar is an early view of a superluminous supernova, which will eventually evolve into a double radio source as matter expands outward.
B)A blazar appears to be what is left in space after all the surrounding matter has been devoured by a black hole, whereas a double radio source still has matter spiraling into the black hole.
C)A blazar is now considered to be the end-on view of a double radio source, looking along one of the relativistic particle jets emitted from the central core.
D)A blazar is the central "engine" that generates the energy for the relativistic particle beams that produce the double radio lobes.

Question

Quizplus · Accepted Answer

Recent studies have shown that blazars are actually a type of active galactic nucleus (AGN) that appear as intense sources of polarized radiation due to the relativistic particle jets that are being emitted from their central cores. These jets are believed to eventually expand and form double-lobed radio sources, as seen in other types of AGNs, such as radio galaxies. Therefore, a blazar can be considered as the end-on view of a double radio source, with the jets pointing directly towards us.

What Is the Relationship Between Blazars (Intense, Rapidly Varying Nonthermal