Question 1

The Tully- Fisher relation uses the _ of the spiral to find its luminosity.

Accepted Answer

The answer of The Tully- Fisher relation uses the _...

Question 2

What are the Magellanic Clouds? What happened in the LMC in 1987?

Accepted Answer

The Magellanic Clouds are our companion

Question 3

Compared to the spirals, elliptical galaxies tend to be more dusty.

Accepted Answer

A) True 
 B)False

Question 4

Galaxies that look like huge globular clusters are Hubble type

Accepted Answer

A)  S0. 
B)  Irr II. 
C)  E7. 
D)  Irr I. 
E)  E0. 
A)  S0. 
B)  Irr II. 
C)  E7. 
D)  Irr I. 
E)  E0.

Question 5

The key to finding quasars' distances was

Accepted Answer

A)  globular clusters in the halo of M87 in Virgo. 
B)  planetary nebula in M51. 
C)  a Type I supernova in the spiral arm of 3C87. 
D)  the luminosity of 3C52 from the Doppler shift and the Fisher- Tully relation. 
E)  the huge redshifts of the hydrogen lines in 3C273. 
A)  globular clusters in the halo of M87 in Virgo. 
B)  planetary nebula in M51. 
C)  a Type I supernova in the spiral arm of 3C87. 
D)  the luminosity of 3C52 from the Doppler shift and the Fisher- Tully relation. 
E)  the huge redshifts of the hydrogen lines in 3C273.

Question 6

The nearest lobe radio galaxy to our Milky Way is

Accepted Answer

A)  M42 in Orion. 
B)  M87 in Virgo. 
C)  the Whirlpool, M51. 
D)  M13 in Hercules. 
E)  Centaurus A. 
A)  M42 in Orion. 
B)  M87 in Virgo. 
C)  the Whirlpool, M51. 
D)  M13 in Hercules. 
E)  Centaurus A.

Question 7

Seyferts are irregular galaxies with very strong radio emission.

Accepted Answer

A) True 
 B)False

Question 8

Despite varying masses, all spiral galaxies look essentially the same.

Accepted Answer

A) True 
 B)False

Question 9

If the central engine for our Milky Way is a black hole of 3 million solar masses, then it has an event horizon about kilometers across.

Accepted Answer

The answer of If the central engine for our Milky...

Question 10

Compared to our own Galaxy, elliptical galaxies

Accepted Answer

A)  have bluer stars. 
B)  have no arms, but a better defined disk. 
C)  have more dust. 
D)  show more internal structure. 
E)  show no evidence of ongoing star formation. 
A)  have bluer stars. 
B)  have no arms, but a better defined disk. 
C)  have more dust. 
D)  show more internal structure. 
E)  show no evidence of ongoing star formation.

Question 11

The central engine of an active galaxy is less than a parsec in diameter.

Accepted Answer

A) True 
 B)False

Question 12

Quasar is short for what? Is this true of all of them?

Accepted Answer

Quasi- stellar radio

Question 13

About how many galaxies are presently known in our Local Group?

Accepted Answer

A)  3 
B)  27 
C)  55 
D)  107 
E)  254 
A)  3 
B)  27 
C)  55 
D)  107 
E)  254

Question 14

The elliptical galaxies are most like what part of our Milky Way? Explain.

Accepted Answer

They are "all halo", with only

Question 15

Irregulars typically have very few blue stars.

Accepted Answer

A) True 
 B)False

Question 16

A galaxy with little cool gas or dust and no evidence of ongoing star formation is most likely a(n)

Accepted Answer

A)  barred spiral. 
B)  elliptical. 
C)  irregular. 
D)  spiral. 
E)  Seyfert. 
A)  barred spiral. 
B)  elliptical. 
C)  irregular. 
D)  spiral. 
E)  Seyfert.

Question 17

What are the common properties shared by most active galaxies and quasars? How do these properties lead to an understanding of the central engine?

Accepted Answer

All active galaxies and quasars emit mas

Question 18

Not only does the central engine of active galaxies and quasars require a black hole, but also to provide the radiative energy.

Accepted Answer

A)  a high rate of rotation for the black hole 
B)  an accretion disk of infalling matter 
C)  a very strong magnetic field from neutron stars 
D)  globular clusters for food 
E)  a source of high- energy electrons for synchrotron radiation 
A)  a high rate of rotation for the black hole 
B)  an accretion disk of infalling matter 
C)  a very strong magnetic field from neutron stars 
D)  globular clusters for food 
E)  a source of high- energy electrons for synchrotron radiation

Question 19

M31 in Andromeda is a bigger version of our Galaxy, and the largest member of the Local Group.

Accepted Answer

A) True 
 B)False

Question 20

Which of these would be made up of only Population II stars?

Accepted Answer

A)  Irr type II 
B)  Seyfert spirals 
C)  Irr type I 
D)  elliptical galaxies 
E)  barred spirals 
A)  Irr type II 
B)  Seyfert spirals 
C)  Irr type I 
D)  elliptical galaxies 
E)  barred spirals

The Tully- Fisher relation uses the _ of the spiral to find its luminosity.

What are the Magellanic Clouds? What happened in the LMC in 1987?

Compared to the spirals, elliptical galaxies tend to be more dusty.

Galaxies that look like huge globular clusters are Hubble type

The key to finding quasars' distances was

The nearest lobe radio galaxy to our Milky Way is

Seyferts are irregular galaxies with very strong radio emission.

Despite varying masses, all spiral galaxies look essentially the same.

If the central engine for our Milky Way is a black hole of 3 million solar masses, then it has an event horizon about kilometers across.

Compared to our own Galaxy, elliptical galaxies

The central engine of an active galaxy is less than a parsec in diameter.

Quasar is short for what? Is this true of all of them?

About how many galaxies are presently known in our Local Group?

The elliptical galaxies are most like what part of our Milky Way? Explain.

Irregulars typically have very few blue stars.

A galaxy with little cool gas or dust and no evidence of ongoing star formation is most likely a(n)

What are the common properties shared by most active galaxies and quasars? How do these properties lead to an understanding of the central engine?

Not only does the central engine of active galaxies and quasars require a black hole, but also to provide the radiative energy.

M31 in Andromeda is a bigger version of our Galaxy, and the largest member of the Local Group.

Which of these would be made up of only Population II stars?

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

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

Cosmology: the Big Bang and the Fate of the Universe

Life in the Universe: Are We Alone

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Exam 16: Normal and Active Galaxies: Building Blocks of the Universe

The Tully- Fisher relation uses the _ of the spiral to find its luminosity.

What are the Magellanic Clouds? What happened in the LMC in 1987?

Compared to the spirals, elliptical galaxies tend to be more dusty.

Galaxies that look like huge globular clusters are Hubble type

The key to finding quasars' distances was

The nearest lobe radio galaxy to our Milky Way is

Seyferts are irregular galaxies with very strong radio emission.

Despite varying masses, all spiral galaxies look essentially the same.

If the central engine for our Milky Way is a black hole of 3 million solar masses, then it has an event horizon about kilometers across.

Compared to our own Galaxy, elliptical galaxies

The central engine of an active galaxy is less than a parsec in diameter.

Quasar is short for what? Is this true of all of them?

About how many galaxies are presently known in our Local Group?

The elliptical galaxies are most like what part of our Milky Way? Explain.

Irregulars typically have very few blue stars.

A galaxy with little cool gas or dust and no evidence of ongoing star formation is most likely a(n)

What are the common properties shared by most active galaxies and quasars? How do these properties lead to an understanding of the central engine?

Not only does the central engine of active galaxies and quasars require a black hole, but also to provide the radiative energy.

M31 in Andromeda is a bigger version of our Galaxy, and the largest member of the Local Group.

Which of these would be made up of only Population II stars?

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

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

Cosmology: the Big Bang and the Fate of the Universe

Life in the Universe: Are We Alone

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