Quiz 3 Study Flashcards
If the galaxy is at a distance of 1 billion light years than what is true.
We see it as it was back than
The sun is located about how many kiloparsecs from the center of the galaxy remember 1 kilo parsec equals 1000 pic=_ 3262 light years
8
It takes the sun about how many years to make a journey in the galaxy
230,000,000
Gas Dust and spiral arms are found in the Galactic
Disk
Where the old stars likely to be found
Halo
The stars and the lows proportion of heavy elements are usually found where
Halo
What is the mass of the galaxy in solar masses
1,250,000,000,000
Spiral arms do not contain what
Supermassive black holes
In 1 trillion years where is the gas of the Milky Way going to be
Locked into white dwarfs and low mass stars
Motions of stars at the center of the galaxy indicate what
That there is a supermassive black hole at the center of our galaxy
Edwin Hubble observed what to determine the distance of nearby galaxies
Cepheids
What kind of galaxies contains stars but no gas
Elliptical galaxies
A sayfert galaxy is always
A galaxy that contains an active galactic the nucleus
In a starburst galaxy
Star formation is increase compared to a normal galaxy
Star formation is increased and what kind of galaxy
Starburst galaxy
What kind of Galaxy is usually the largest
Elliptical galaxies after collision
How fast would a galaxy 2000 Mpc. away be moving in respect to us? Hint h0= 70 km/s/mpc
140,000
Hubbles law relating galaxy velocity and distance works only when looking at other galaxies for the Milky Way true or false?
False
Hubbles law implies a galaxies are blue shifted true or false
False
What distance measurement technique works best for the closest galaxy that we can observe?
Cepheid so
Proto galactic clouds with slow spin and angular momentum are probably form in elliptical galaxies true or false
True
Elliptical galaxies usually form what type of clouds
Proto galactic clouds
Because quasars usually have very large redshifts what can we conclude
Nearby galaxies might hold dead quasars
What is a Magellanic cloud
Irregular
What type of galaxy is the Milky Way
A barred spiral galaxy
What type of galaxy is the Andromeda galaxy
A spiral galaxy
The standard used to measure the distance of distant galaxies is otherwise known as
Tully fisher relation
Describe the disc of the galaxy
It is a flat and distribution of mainly young stars and star formation lots of gas and dust usually stay here
Describe the central bulge of the galaxy
Contains a mix of older and younger stars
Describe the halo of the galaxy
It is a large spiracle region that contain some stars and globular clusters
Earth is a part of what
The solar system
The solar system is a part of what
The Milky Way galaxy
The Milky Way galaxy is a part of what
The local group
The local group is a part of what
The local supercluster
