Active Galaxies & Quasars

Front

What does 'Quasar' stand for?

Back

Quasi-stellar object or starlike.

Front

What type of galactic center do Seyfert galaxies have?

Back

Large galactic centers.

Front

Is the galactic evolutionary sequence: quasars, normal galaxies, active galaxies?

Back

False.

Front

When were quasars first discovered?

Back

In the 1950s.

Front

What are quasars known for?

Back

Being among the most distant objects ever detected.

Front

What type of radiation describes the massive energies in which quasars eject galactic material?

Back

Synchrotron radiation.

Front

What is a Seyfert galaxy?

Back

A type of active galaxy with a bright nucleus and large galactic center.

Front

What is the significance of quasars in astronomy?

Back

They help astronomers understand the early universe and the formation of galaxies.

Front

What is a supermassive black hole?

Back

A black hole with a mass millions to billions times that of the Sun, often found at the center of galaxies.

Front

What is the difference between active galaxies and normal galaxies?

Back

Active galaxies have energetic processes occurring at their centers, while normal galaxies do not.