The H- atom is important in protostars because it acts as a powerful temperature regulator.
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Q2: The coldest molecular clouds in our galaxy
Q3: A protostar is usually in hydrostatic equilibrium
Q4: The lowest-density gas in the interstellar medium
Q5: The average density of the interstellar medium
Q6: Star formation in a molecular cloud can
Q8: The interstellar medium is divided up into
Q9: The dust in the interstellar medium comes
Q10: Molecular hydrogen atoms are found only inside
Q11: When radiation from an object passes through
Q12: Stars forming in molecular clouds tend to
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