What is the minimum mass required for a star to be considered a high-mass star?
Answer
More than eight times the mass of the Sun
High-mass stars are defined as objects containing more than eight times the mass of the Sun. Unlike stars with lower mass that eventually shed their outer layers to form white dwarfs, these larger stars possess sufficient gravitational pressure to continue fusing increasingly heavy elements throughout their lifetimes, ultimately leading to a more violent evolutionary conclusion in the form of a supernova and a dense remnant.
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