3 ms·
According to: https://en.wikipedia.org/wiki/Quasar https://en.wikipedia.org/wiki/Quasar In the 1980s, unified models were developed in which quasars were clas
by teh_klev 8y ago
According to:
https://en.wikipedia.org/wiki/Quasar https://en.wikipedia.org/wiki/Quasar
In the 1980s, unified models were developed in which quasars were classified as a particular kind of active galaxy, and a consensus emerged that in many cases it is simply the viewing angle that distinguishes them from other active galaxies, such as blazars and radio galaxies.
..also...
A minority of quasars show strong radio emission, which is generated by jets of matter moving close to the speed of light. When viewed downward, these appear as blazars ...
To the best of my knowledge and interpretation they can be a type of "Quasar" but are really a type of galaxy with an active galactic nucleus (AGN) where their jets point towards Earth:
https://en.wikipedia.org/wiki/Blazar https://en.wikipedia.org/wiki/Blazar
A blazar is an active galactic nucleus with a relativistic jet (a jet composed of ionized matter traveling at nearly the speed of light) directed very nearly toward the Earth.
https://en.wikipedia.org/wiki/Active_galactic_nucleus#Types_of_active_galaxy https://en.wikipedia.org/wiki/Active_galactic_nucleus#Types_...
- mirimir 8y agoThanks. I did skim the Wikipedia articles, but wasn't left with a clear understanding. But OK, I get that they're all galaxies with AGNs aka massive black holes. And that blazars are the ones with a jet pointed right at us. But now I'm curious. When a jet is pointed right at us, we see visible, x-ray and gamma radiation, and relativistic particles. But is longer wavelength radiation also emitted mainly on the jet axis?