Question 1

The Milky Way is at the center of our Local Supercluster.

Accepted Answer

A) True 
 B)False

Question 2

What is true of galaxies at the larger redshifts compared to ones nearby?

Accepted Answer

A)  They appear smaller and more irregular. 
B)  They are mostly giants. 
C)  They are redder. 
D)  They are almost all ellipticals. 
E)  They appear larger and more regular. 
A)  They appear smaller and more irregular. 
B)  They are mostly giants. 
C)  They are redder. 
D)  They are almost all ellipticals. 
E)  They appear larger and more regular.

Question 3

Collisions between galaxies have little effect on the individual stars.

Accepted Answer

A) True 
 B)False

Question 4

The "Great Wall" is the structure in the Large Magellanic Cloud near where Supernova 1987A occurred.

Accepted Answer

A) True 
 B)False

Question 5

The percentage of dark matter in galactic clusters is less than the percentage in individual galaxies.

Accepted Answer

A) True 
 B)False

Question 6

According to the HST data, very distant (and early) galaxies tend to be

Accepted Answer

A)  larger and bluer that modern galaxies. 
B)  very well formed into clusters of nothing but spirals. 
C)  nothing but quasars. 
D)  redder, due to the recession of the universe. 
E)  smaller, bluer, and more irregular than modern ones. 
A)  larger and bluer that modern galaxies. 
B)  very well formed into clusters of nothing but spirals. 
C)  nothing but quasars. 
D)  redder, due to the recession of the universe. 
E)  smaller, bluer, and more irregular than modern ones.

Question 7

The galaxies that reveal their motion through the intergalactic medium are called
.

Accepted Answer

head- tail

Question 8

The quasar epoch ended when the galactic merger rate .

Accepted Answer

The answer of The quasar epoch ended when the galactic...

Question 9

It is currently believed that superclusters lie on the surfaces of "bubbles" in space.

Accepted Answer

A) True 
 B)False

Question 10

No binary black hole has ever been detected.

Accepted Answer

A) True 
 B)False

Question 11

Collisions between galaxies are thought to

Accepted Answer

A)  be commonplace. 
B)  have only occurred between 10 and 15 billion years ago. 
C)  have stopped about 5 billion years ago. 
D)  be extremely rare. 
E)  have never occurred. 
A)  be commonplace. 
B)  have only occurred between 10 and 15 billion years ago. 
C)  have stopped about 5 billion years ago. 
D)  be extremely rare. 
E)  have never occurred.

Question 12

Collisions between galaxies

Accepted Answer

A)  cause large numbers of stars to collide and explode. 
B)  are the best explanation for gamma- ray burst events. 
C)  cause the gas and dust clouds to collide, leading to rapid star formation. 
D)  are much rarer than collisions between stars. 
E)  can turn elliptical galaxies into spirals. 
A)  cause large numbers of stars to collide and explode. 
B)  are the best explanation for gamma- ray burst events. 
C)  cause the gas and dust clouds to collide, leading to rapid star formation. 
D)  are much rarer than collisions between stars. 
E)  can turn elliptical galaxies into spirals.

Question 13

As with stars, binary galaxy pairs are useful in finding their total mass.

Accepted Answer

A) True 
 B)False

Question 14

The Great Wall is a huge sheet of galaxies that stretches for over 100 Mpc.

Accepted Answer

A) True 
 B)False

Question 15

What is the expected result from the merger of a large irregular and a small irregular galaxy?

Accepted Answer

A spiral g

Question 16

Some quasars show absorption spectra with a smaller redshift than their emission spectra. This indicates that

Accepted Answer

A)  they are much closer than previously thought. 
B)  we still don't understand redshifts. 
C)  there is cooler gas between us and the quasar. 
D)  their black holes are still contracting. 
E)  their black holes are still expanding. 
A)  they are much closer than previously thought. 
B)  we still don't understand redshifts. 
C)  there is cooler gas between us and the quasar. 
D)  their black holes are still contracting. 
E)  their black holes are still expanding.

Question 17

In the Local Group, how might even the Milky Way become a victim?

Accepted Answer

In the binary system of the Milky Way an

Question 18

Gravitational lensing of distant, faint irregular galaxies may be the key to

Accepted Answer

A)  determining galactic redshifts. 
B)  quasar energy production. 
C)  mapping dark matter. 
D)  understanding active galactic nuclei. 
E)  understanding galactic rotation curves. 
A)  determining galactic redshifts. 
B)  quasar energy production. 
C)  mapping dark matter. 
D)  understanding active galactic nuclei. 
E)  understanding galactic rotation curves.

Question 19

How massive are the largest known galaxies?

Accepted Answer

A)  a few million solar masses 
B)  a hundred million solar masses 
C)  a few billion solar masses 
D)  a trillion solar masses 
E)  hundreds of trillions of solar masses 
A)  a few million solar masses 
B)  a hundred million solar masses 
C)  a few billion solar masses 
D)  a trillion solar masses 
E)  hundreds of trillions of solar masses

Question 20

Redshift surveys are designed to find which galaxies are oldest and youngest.

Accepted Answer

A) True 
 B)False

The Milky Way is at the center of our Local Supercluster.

What is true of galaxies at the larger redshifts compared to ones nearby?

Collisions between galaxies have little effect on the individual stars.

The "Great Wall" is the structure in the Large Magellanic Cloud near where Supernova 1987A occurred.

The percentage of dark matter in galactic clusters is less than the percentage in individual galaxies.

According to the HST data, very distant (and early) galaxies tend to be

The galaxies that reveal their motion through the intergalactic medium are called .

The quasar epoch ended when the galactic merger rate .

It is currently believed that superclusters lie on the surfaces of "bubbles" in space.

No binary black hole has ever been detected.

Collisions between galaxies are thought to

Collisions between galaxies

As with stars, binary galaxy pairs are useful in finding their total mass.

The Great Wall is a huge sheet of galaxies that stretches for over 100 Mpc.

What is the expected result from the merger of a large irregular and a small irregular galaxy?

Some quasars show absorption spectra with a smaller redshift than their emission spectra. This indicates that

In the Local Group, how might even the Milky Way become a victim?

Gravitational lensing of distant, faint irregular galaxies may be the key to

How massive are the largest known galaxies?

Redshift surveys are designed to find which galaxies are oldest and youngest.

Charting the Heavens: the Foundations of Astronomy

The Copernican Revolution: the Birth of Modern Science

Light and Matter: the Inner Workings of the Cosmos

Telescopes: the Tools of Astronomy

The Solar System: Interplanetary Matter and the Birth of the Planets

Earth and Its Moon: Our Cosmic Backyard

The Terrestrial Planets: a Study in Contrasts

The Jovian Planets: Giants of the Solar System

Moons, Rings, and Plutoids: Small Worlds Among Giants

The Sun: Our Parent Star

Measuring the Stars: Giants, Dwarfs, and the Main Sequence

The Interstellar Medium: Star Formation in the Milky Way

Stellar Evolution: the Lives and Deaths of Stars

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: a Spiral in Space

Normal and Active Galaxies: Building Blocks of the Universe

Cosmology: the Big Bang and the Fate of the Universe

Life in the Universe: Are We Alone

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Exam 17: Hubbles Law and Dark Matter: the Large-Scale Structure of the Cosmos

The Milky Way is at the center of our Local Supercluster.

What is true of galaxies at the larger redshifts compared to ones nearby?

Collisions between galaxies have little effect on the individual stars.

The "Great Wall" is the structure in the Large Magellanic Cloud near where Supernova 1987A occurred.

The percentage of dark matter in galactic clusters is less than the percentage in individual galaxies.

According to the HST data, very distant (and early) galaxies tend to be

The galaxies that reveal their motion through the intergalactic medium are called .

The quasar epoch ended when the galactic merger rate .

It is currently believed that superclusters lie on the surfaces of "bubbles" in space.

No binary black hole has ever been detected.

Collisions between galaxies are thought to

Collisions between galaxies

As with stars, binary galaxy pairs are useful in finding their total mass.

The Great Wall is a huge sheet of galaxies that stretches for over 100 Mpc.

What is the expected result from the merger of a large irregular and a small irregular galaxy?

Some quasars show absorption spectra with a smaller redshift than their emission spectra. This indicates that

In the Local Group, how might even the Milky Way become a victim?

Gravitational lensing of distant, faint irregular galaxies may be the key to

How massive are the largest known galaxies?

Redshift surveys are designed to find which galaxies are oldest and youngest.

Charting the Heavens: the Foundations of Astronomy

The Copernican Revolution: the Birth of Modern Science

Light and Matter: the Inner Workings of the Cosmos

Telescopes: the Tools of Astronomy

The Solar System: Interplanetary Matter and the Birth of the Planets

Earth and Its Moon: Our Cosmic Backyard

The Terrestrial Planets: a Study in Contrasts

The Jovian Planets: Giants of the Solar System

Moons, Rings, and Plutoids: Small Worlds Among Giants

The Sun: Our Parent Star

Measuring the Stars: Giants, Dwarfs, and the Main Sequence

The Interstellar Medium: Star Formation in the Milky Way

Stellar Evolution: the Lives and Deaths of Stars

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: a Spiral in Space

Normal and Active Galaxies: Building Blocks of the Universe

Cosmology: the Big Bang and the Fate of the Universe

Life in the Universe: Are We Alone

Filters