Active Galactic Nuclei

Active galaxies are ____ than normal galaxies and are

• dimmer, less active

• dimmer, more active

• brighter, less active

• brighter, more active

Radio galaxies emit radiation mostly in the _____ portion of the light spectrum.

• infrared

• radio

• xray

• gamma

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

These objects were first found in the 1960's and are among the most distant ever detected.

• supermassive black holes

• quasars

• active galaxies

• supernovae

"Quasar" stands for "quasi-stellar object" or "starlike."

• True

• False

What are thought to cause the tremendous energy produced by quasars?

• supermassive black holes

• supernova explosions

• hypernova explosions

• the Big Bang

The "Great Galaxy Merger" of the Milky Way & Andromeda will most likely (choose all that apply)

• never happen.

• form more supernovae.

• form an active galactic nuclei.

• form an even more massive central black hole.

How do quasars get their energy?

• They generate their own energy

• A black hole

• The sun

• The stars

Type 1 Seyfert galaxies emit more X-ray radiation than type 2 Seyfert galaxies.

• True

• False

Tags

NGSS.HS-PS4-4

The Milky Way galaxy has an active galactic nuclei.

• True

• False

What is the most luminous object in the universe?

• supermassive black hole

• quasar

• Seyfert galaxy

• supernova