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Quasars and Blazars

Test your knowledge about quasars and blazars, the most luminous and energetic objects in the universe.

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

What is the primary energy source of quasars and blazars?

  1. Nuclear Fusion
  2. Gravitational Accretion
  3. Electromagnetic Radiation
  4. Dark Matter Annihilation
Question 2 Multiple Choice (Single Answer)

What is the typical size of a quasar or blazar?

  1. Smaller than a Solar System
  2. Comparable to a Solar System
  3. Larger than a Solar System but Smaller than a Galaxy
  4. Comparable to a Galaxy
Question 3 Multiple Choice (Single Answer)

What is the difference between a quasar and a blazar?

  1. Quasars are brighter than blazars.
  2. Blazars have a more powerful jet than quasars.
  3. Quasars are more distant than blazars.
  4. Blazars are more variable than quasars.
Question 4 Multiple Choice (Single Answer)

What is the typical luminosity of a quasar?

  1. Comparable to the Sun
  2. Comparable to a Galaxy
  3. Comparable to a Cluster of Galaxies
  4. Comparable to the Entire Observable Universe
Question 5 Multiple Choice (Single Answer)

What is the redshift of the most distant quasar observed to date?

  1. z = 0.5
  2. z = 1.0
  3. z = 6.0
  4. z = 13.0
Question 6 Multiple Choice (Single Answer)

What is the role of quasars and blazars in galaxy evolution?

  1. They trigger star formation.
  2. They quench star formation.
  3. They regulate the growth of supermassive black holes.
  4. All of the above
Question 7 Multiple Choice (Single Answer)

What is the typical lifetime of a quasar?

  1. Millions of years
  2. Hundreds of millions of years
  3. Billions of years
  4. Trillions of years
Question 8 Multiple Choice (Single Answer)

What is the name of the first quasar discovered?

  1. 3C 273
  2. 3C 48
  3. CTA 102
  4. PKS 2155-304
Question 9 Multiple Choice (Single Answer)

What is the typical mass of the supermassive black hole at the center of a quasar?

  1. Millions of Solar Masses
  2. Hundreds of Millions of Solar Masses
  3. Billions of Solar Masses
  4. Trillions of Solar Masses
Question 10 Multiple Choice (Single Answer)

What is the typical speed of the jet in a blazar?

  1. Close to the Speed of Light
  2. Half the Speed of Light
  3. A Quarter of the Speed of Light
  4. A Tenth of the Speed of Light
Question 11 Multiple Choice (Single Answer)

What is the typical distance of a quasar from Earth?

  1. Millions of Light-Years
  2. Hundreds of Millions of Light-Years
  3. Billions of Light-Years
  4. Trillions of Light-Years
Question 12 Multiple Choice (Single Answer)

What is the name of the closest quasar to Earth?

  1. 3C 273
  2. OJ 287
  3. PG 1211+143
  4. TON 618
Question 13 Multiple Choice (Single Answer)

What is the typical variability timescale of a blazar?

  1. Days
  2. Weeks
  3. Months
  4. Years
Question 14 Multiple Choice (Single Answer)

What is the name of the largest quasar ever discovered?

  1. SDSS J1148+5251
  2. SDSS J0131+0014
  3. SDSS J1030+0524
  4. SDSS J0842+1135
Question 15 Multiple Choice (Single Answer)

What is the name of the most powerful blazar ever discovered?

  1. 3C 454.3
  2. PKS 2155-304
  3. CTA 102
  4. S5 0716+714
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