21st Century Astronomy
21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 17, Problem 8QP
To determine

The process by which hydrogen fusion occurs in a high-mass star.

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As a white dwarf cools, its radius will not change because   a. pressure resulting from nuclear reactions in a shell just below the surface keeps it from collapsing.   b. pressure does not depend on temperature for a white dwarf because the electrons are degenerate.   c. pressure does not depend on temperature because the white dwarf is too hot.   d. pressure does not depend on temperature because the star has exhausted all its nuclear fuels.   e. material accreting onto it from a companion maintains a constant radius.
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