Journey to the Cosmic Core: The Active Galactic Nucleus Quiz

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Questions: 10 | Attempts: 88 | Updated: Oct 27, 2023

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Journey To The Cosmic Core: The Active Galactic Nucleus Quiz - Quiz

Welcome to "Journey to the Cosmic Core: The Active Galactic Nucleus Quiz." Prepare to embark on an astronomical adventure as we delve deep into the enigmatic heart of galaxies. Active Galactic Nuclei (AGN) are some of the most powerful and brilliant objects in the universe, harboring supermassive black holes, voraciously consuming matter, and unleashing immense energies.

In this quiz, we will explore the mesmerizing world of AGNs, unraveling their mysteries and understanding their significance in the cosmos. What powers these cosmic behemoths, and how do they influence their host galaxies? Discover the astonishing diversity of AGNs, from quasars to blazars, and Read moretheir role in shaping the universe.

Challenge your knowledge and comprehension of these celestial powerhouses, and uncover the latest insights from modern astrophysical research. Test your understanding of the complex processes at play within AGNs, from accretion disks to relativistic jets, and their impact on the universe's evolution.

Whether you're a seasoned astrophysicist or just a curious stargazer, this quiz is your ticket to a journey through the cosmic core. Let's embark on an exploration of the cosmos with the "Journey to the Cosmic Core: The Active Galactic Nucleus Quiz."

Questions and Answers

1.

Which type of AGN exhibits strong, broad emission lines in their spectra?
- A.
  
  Seyfert galaxies
- B.
  
  Blazars
- C.
  
  Quasars
- D.
  
  LINERs
Correct Answer
C. Quasars

Explanation
Quasars, short for "quasi-stellar radio sources," are a type of active galactic nucleus (AGN) known for their strong and broad emission lines in their spectra. These broad emission lines result from the rapid motion of gas and dust near the supermassive black hole at the center of a quasar.

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2.

What is the full name of the AGN acronym Cygnus A?
- A.
  
  Cosmic Active Nucleus
- B.
  
  Celestial Astronomical Network
- C.
  
  Cygnus Alpha Nucleus
- D.
  
  Cygnus A Radio Galaxy
Correct Answer
D. Cygnus A Radio Galaxy

Explanation
The AGN acronym Cygnus A stands for Cygnus A Radio Galaxy, which is a powerful radio source located in the constellation of Cygnus. Cygnus A is a well-known radio galaxy with a strong radio emission source located in the constellation Cygnus. It is one of the most studied radio galaxies and is named after its radio source component.

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3.

Which class of AGN is characterized by their relativistic jets pointing nearly towards the observer?
- A.
  
  Radio galaxies
- B.
  
  Broad-line radio galaxies
- C.
  
  Blazars
- D.
  
  LINERs
Correct Answer
C. Blazars

Explanation
Blazars are a specific type of active galactic nucleus (AGN) that includes both flat-spectrum radio quasars and BL Lac objects. They are known for their intense and variable emission across the electromagnetic spectrum and are characterized by the orientation of their relativistic jets, which are aligned in such a way that they appear to point directly toward Earth, making them one of the most luminous and energetic sources in the universe.

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4.

What is the AGN name for the galaxy Messier 87?
- A.
  
  Centaurus A
- B.
  
  Andromeda
- C.
  
  Sombrero
- D.
  
  Virgo A
Correct Answer
D. Virgo A

Explanation
M87, also known as Virgo A, is a giant elliptical galaxy located in the Virgo cluster. It is known for harboring a supermassive black hole at its center, which is a prominent source of radio emissions and an active galactic nucleus (AGN).

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5.

Which type of AGN is often found in low-luminosity galaxies?
- A.
  
  Quasars
- B.
  
  Seyfert galaxies
- C.
  
  LINERs
- D.
  
  Blazars
Correct Answer
C. LINERs

Explanation
LINERs are a type of active galactic nucleus (AGN) that are typically found in low-luminosity galaxies. They are characterized by their relatively weak ionization of the gas in the nuclear regions of these galaxies.

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6.

What is the AGN name for the galaxy NGC 1068?
- A.
  
  M77
- B.
  
  Centaurus A
- C.
  
  Sombrero
- D.
  
  Messier 106
Correct Answer
A. M77

Explanation
The AGN name for the galaxy NGC 1068 is "Messier 77 (M77)". NGC 1068 is a Seyfert galaxy, meaning it hosts an active galactic nucleus with a supermassive black hole at its center, which produces strong emissions in various wavelengths, including radio, infrared, and X-rays.

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7.

Which AGN type includes both radio-loud and radio-quiet objects?
- A.
  
  Quasars
- B.
  
  Seyfert galaxies
- C.
  
  Blazars
- D.
  
  LINERs
Correct Answer
B. Seyfert galaxies

Explanation
Seyfert galaxies encompass both radio-loud and radio-quiet objects within their category. These galaxies are known for their active galactic nuclei (AGN), which can exhibit a range of characteristics and emissions, making some of them radio-loud and others radio-quiet.

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8.

What is the AGN name for the galaxy NGC 5128?
- A.
  
  M87
- B.
  
  Virgo A
- C.
  
  Sombrero
- D.
  
  Centaurus A
Correct Answer
D. Centaurus A

Explanation
NGC 5128, also known as Centaurus A, is a well-known galaxy with an active galactic nucleus (AGN) at its center. It is one of the closest radio galaxies to Earth and is a powerful source of radio emissions. The name "Centaurus A" reflects its location in the constellation Centaurus.

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9.

What is the AGN name for the Black Eye Galaxy?
- A.
  
  Andromeda
- B.
  
  Centaurus A
- C.
  
  M64
- D.
  
  Sombrero
Correct Answer
C. M64

Explanation
The Black Eye Galaxy, also known as the Sleeping Beauty Galaxy or Messier 64 (M64), is a spiral galaxy located in the constellation Coma Berenices. While M64 is a visually striking galaxy with a dark band of dust giving it the appearance of a "black eye," it does not have a well-documented active galactic nucleus (AGN) and is not typically associated with the AGN designation.

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10.

What is the AGN name for the galaxy Messier 51a?
- A.
  
  Andromeda
- B.
  
  Whirlpool
- C.
  
  Centaurus A
- D.
  
  Sombrero
Correct Answer
B. Whirlpool

Explanation
Messier 51a, also known as the Whirlpool Galaxy, is a spiral galaxy. It is not typically associated with the AGN designation as it is primarily known for its visual appearance and structure as a prominent spiral galaxy rather than for the presence of an active galactic nucleus.

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Current Version
Oct 27, 2023

Quiz Edited by
ProProfs Editorial Team
Oct 27, 2023

Quiz Created by
Surajit Dey

Journey to the Cosmic Core: The Active Galactic Nucleus Quiz

Which type of AGN exhibits strong, broad emission lines in their spectra?

What is the full name of the AGN acronym Cygnus A?

Which class of AGN is characterized by their relativistic jets pointing nearly towards the observer?

What is the AGN name for the galaxy Messier 87?

Which type of AGN is often found in low-luminosity galaxies?

What is the AGN name for the galaxy NGC 1068?

Which AGN type includes both radio-loud and radio-quiet objects?

What is the AGN name for the galaxy NGC 5128?

What is the AGN name for the Black Eye Galaxy?

What is the AGN name for the galaxy Messier 51a?