PHYS 1306 - Exam 3 Review

Front

What is the name of our galaxy?

Back

The Milky Way.

Front

What does gravitational lensing by intermediate galactic clusters indicate?

Back

The presence of 5-6 times more mass than visible.

Front

What does AGN stand for in astronomy?

Back

Active Galactic Nuclei.

Front

What did the fluctuations in the Quark Era imprint?

Back

Large Scale Structure.

Front

Which type of stars are found in the Milky Way's nuclear bulge?

Back

Population II stars.

Front

What is the primary component of the Milky Way galaxy?

Back

Stars, gas, dust, and dark matter.

Front

What is dark matter?

Back

A form of matter that does not emit light or energy, detectable through its gravitational effects.

Front

What is the significance of the Cosmic Microwave Background (CMB)?

Back

It is the afterglow radiation from the Big Bang, providing evidence for the universe's early state.

Front

What are Population I stars?

Back

Younger stars found in the disk of the galaxy, often rich in metals.

Front

What are Population II stars?

Back

Older stars found in the halo and bulge of the galaxy, typically metal-poor.