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Questions and Answers
What factors influence the observed properties of a quasar?
What factors influence the observed properties of a quasar?
- The brightness of the host galaxy
- The presence or absence of a jet (correct)
- The color of the light emitted
- The distance from Earth
When was the term 'quasar' first introduced?
When was the term 'quasar' first introduced?
- In 1917 by Heber Curtis
- In 1950 by Ernst Öpik
- In 1970 by Radio Astronomy Association
- In 1964 by Hong-Yee Chiu (correct)
How old was the universe when light from quasar ULAS J1342+0928 was emitted?
How old was the universe when light from quasar ULAS J1342+0928 was emitted?
- 690 million years old (correct)
- 800 million years old
- 2 billion years old
- 1 billion years old
What is a large group of multiple quasars known as?
What is a large group of multiple quasars known as?
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When did astronomers first realize that some objects seen were distant galaxies like the Milky Way?
When did astronomers first realize that some objects seen were distant galaxies like the Milky Way?
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What powers the emission from an active galactic nucleus (AGN) in a quasar?
What powers the emission from an active galactic nucleus (AGN) in a quasar?
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How do quasars compare in luminosity to a galaxy like the Milky Way?
How do quasars compare in luminosity to a galaxy like the Milky Way?
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Why are quasars usually categorized as a subclass of the more general category of AGN?
Why are quasars usually categorized as a subclass of the more general category of AGN?
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What is the cosmological origin of the redshifts observed in quasars?
What is the cosmological origin of the redshifts observed in quasars?
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What did the term 'quasar' originate as a contraction of?
What did the term 'quasar' originate as a contraction of?
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