In what wavelength range do protostars emit most of their energy?
A) optical
B) radio
C) infrared
D) ultraviolet
Correct Answer:
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Q34: Astronomers discover a large number of Herbig-Haro
Q35: As a low-mass protostar approaches the main
Q36: A brown dwarf is a:
A) low-mass star.
B)
Q37: Which regions of a molecular cloud collapse
Q38: A massive protostar is more luminous than
Q40: An object with a mass 10 times
Q41: The figure below shows the HR diagram
Q42: A gas cloud with a temperature of
Q43: Where do high-mass stars form?
A) in massive
Q44: How might an astronomer measure the initial
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