AST 104 Stars and Galaxies

Important Terms for Chapter 13:

Milky Way Galaxy

Nuclear bulge

Disc

Halo

Globular clusters

Open (galactic) clusters

Population I star

Population II star

Rotation curve

Sagittarius A*

Standard candle

Standard ruler

Elliptical galaxies

Spiral galaxies

Barred spiral galaxies

Irregular galaxies

Flocculent spirals

Grand design spirals

Density wave theory

Self-sustaining star formation

Starburst galaxies

The Local Group

Large and Small Magellanic Clouds

Regular (Rich) clusters

Irregular (Poor) clusters

Superclusters

Dark matter