Galaxies Review

What is the name of our galaxy?

• The Sombrero Galaxy

• The Black Eye Galaxy

• The Milky Way Galaxy

• The Andromeda Galaxy

The Milky Way Galaxy and this other galaxy are the two most massive members of our local group.

• The Sombrero Galaxy

• The Black Eye Galaxy

• The Milky Way Galaxy

• The Andromeda Galaxy

Poor clusters have less than 1000 member galaxies, while rich clusters have greater than 1000 members.

• True

• False

We use ________ to measure distance between galaxies.

• Mega parsecs

• Seconds

• mph

• Gauss

A mega parsec (Mpc) represents one....

• million parsecs.

• thousand parsecs.

• trillion parsecs.

• billion parsecs.

Standard candles are...

• objects with known luminosity used to measure the distance to galaxies.

• affordable lighting solutions.

• a type of telescope.

• neutrino detectors.

Which of the following objects are used by astronomers as standard candles?

• Type 1a Supernovae

• Cepheid Variable Stars

• Supermassive Black Holes

• Neutron Stars.

The Virgo Cluster is a rich cluster.

• True

• False

The local group is a rich cluster.

• True

• False

_______ are hypothetically like heavy neutrinos and a proposed candidate for dark matter.

• WIMPs

• MACHOs

• Neutrinos