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ScienceForte ScienceForte
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A month ago

Suppose you discover a binary star system with a 0.7 solar mass giant star and a 2 solar mass main sequence star. Why is this surprising?



0.7 solar mass stars are not expected to become giants.



All 2 solar mass stars should have left the main sequence.



Giant stars are expected to destroy their companions, so the 2 solar mass star shouldn't exist.



The 2 solar mass star should have become a giant before the 0.7 solar mass star.

Textbook 
ASTRO

ASTRO


Edition: 3rd
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naj2008hnaj2008h
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A month ago
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