Unit 4

Question 1

Type II Supernova

Answer 1

Caused by the death of a high mass star

Question 2

Supernovae blast wave moves at

Answer 2

16,000,000 km per hour

Question 3

Crab Nebula seen exploding in

Answer 3

1054

Question 4

Source of the Crab Nebula’s magnetic field

Answer 4

A neutron star

Question 5

Giant Molecular Clouds (GMC)

Answer 5

Clouds containing gas and a lot of mass

Question 6

What causes the arcs and bubble shapes in Orion’s distribution

Answer 6

Stellar wind from local stars

Question 7

How do stars from in the Eagle Nebula

Answer 7

Shock waves from heated gas crash into colder gas and compress it into stars

Question 8

Number of stars in the Milky Way

Answer 8

40 billion, mostly lower mass

Question 9

Width of Milky Way disk

Answer 9

100,000 light years

Question 10

Bulge

Answer 10

The very center of the galaxy disk with older stars than the rest of the disk

Question 11

Halo

Answer 11

Outer ring of the disk. Many times larger with a lower destiny of stars, which are primarily older

Question 12

Population II stars

Answer 12

Old stars in the bulge and in the halo

Question 13

Distance between Milky Way and Andromeda Galaxy

Answer 13

2 million light years

Question 14

Where do new stars form in the Milky Way?

Answer 14

In the disk

Question 15

Galaxy Types

Answer 15

Spiral; resembling pinwheels. like the Milky Way
Elliptical: oval shaped, appearing smooth and featureless
Irregular galaxy: mess of stars with no defined shape or structure. Smaller than other galaxies

Question 16

Hubble’s Law

Answer 16

The further away the galaxy is, the faster it moves