What is the primary reason brown dwarfs are often referred to as 'failed stars'?
The Brown Dwarf Debate

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Physics, Science
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
They are larger than gas giants.
They cannot sustain hydrogen fusion.
They emit visible light like stars.
They are too small to burn deuterium.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a distinguishing feature between brown dwarfs and gas giants?
Movement patterns
Formation process
Color of emitted light
Metallicity levels
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do brown dwarfs and stars typically form?
By merging smaller planets
Through gravitational collapse of a gas cloud
By accreting from a protoplanetary disc
Through nuclear fusion of deuterium
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does the James Webb Space Telescope play in the study of brown dwarfs?
It measures the visible light emitted by brown dwarfs.
It detects the radio waves from brown dwarfs.
It observes the infrared light emitted by brown dwarfs.
It captures the ultraviolet light from brown dwarfs.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main reason brown dwarfs are considered 'failed stars'?
They failed to capture enough mass to burn hydrogen.
They orbit too far from stars.
They have too much metal in their composition.
They are too cold to emit any light.
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