Question 1

Why are novae thought to reoccur repeatedly?

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Question 2

What types of stars cause Type I supernovae,and what makes them explode?

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Question 3

A white dwarf star has a luminosity equal to 10⁻⁴ L_⨀ and a temperature twice that of the Sun (i.e. ,T = 10,600 K).What is the radius of the white dwarf,expressed as a ratio to the solar radius?

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Question 4

When the Sun becomes an AGB star,its radius will be approximately 100 R_⨀.If its mass at this point will be approximately the same as it is now,how will its surface gravity as an AGB star compare to its present surface gravity as a main-sequence star? Note that g GM/R².

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Question 5

What is the shortest phase of evolution for a one solar mass star that we can visibly see?

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Question 6

What types of chemical elements can low-mass stars contribute to the enrichment of the interstellar medium and how are they produced?

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Question 7

What is "degenerate" in the degenerate core of a white dwarf?

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Question 8

Explain the significance of Roche lobes in a binary system.

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Quiz 16: Evolution of Low-Mass Stars