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9 Cards in this Set
- Front
- Back
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Brown Dwarfs |
Formed from protostars less than 0.08 times the mass of the Sun |
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White Dwarfs |
Protostars with masses between 0.08 and 8 times the mass of the sun evolve into a yellow main-sequence star and then to a ______ |
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Gliese 229 |
First brown dwarf that was discovered in 1995 |
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Neutron Capture |
Nuclear reaction in which an atomic nucleus and one or more neutrons collide and merge to form a heavier nucleus |
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Low-Mass Star |
Stars born with masses less than about 2Msun. End their lives by ejecting a planetary nebula and a white dwarf |
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Helium Capture Reactions |
Fusion reactions that dude a helium nucleus into some other nucleus; such reactions can fuse carbon into oxygen, oxygen into neon, neon into magnesium, and so on |
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Supernova Remnant |
A glowing, expanding cloud of debris from a supernova explosion |
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Supernova Remnant |
A glowing, expanding cloud of debris from a supernova explosion |
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Supernova 1987 |
A supernova witnessed on Earth in 1987; it was the nearest supernova seen in nearly 400 years and helped astronomers refine theories of supernovae |
