21ST CENTURY ASTR.:SOLAR..(LL)-PACKAGE
6th Edition
ISBN: 9780393448498
Author: Kay
Publisher: NORTON
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Question
Chapter 17, Problem 2QP
To determine
To arrange the elements in the order they fuse inside the nucleus of a high-mass star during the star’s evolution.
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Which of the following binary star systems cannot exist?
A. A 1 solar-mass main sequence star and a 4 solar mass red giant with a size 100 times smaller than the orbital distance.
B. A 15 solar-mass main sequence star and a 10 solar mass red giant with a size 100 times smaller than the orbital distance.
C. A 1 solar-mass main sequence star and a 4 solar-mass main sequence star.
D. A 2 solar-mass main sequence star and a 1 solar mass red giant with a size a few times smaller than the orbital distance.
Which of the following is wrong?
A. Tidal effects in a binary star system become more important when one or both stars become giant stars.
B. There is no fusion occurring in the core of a low-mass red giant star.
C. Gold (the element) is produced during the supernova explosions of high-mass stars.
D. Suppose the star Betelgeuse were to become a supernova tomorrow, we'd see by naked eyes a cloud of gas expanding away from the position where Betelgeuse used to be. Over a period of a few weeks, this cloud would fill a large part of our sky.
There is a mass–luminosity relation because
a.
hydrogen fusion produces helium.
b.
stars expand when they become giants.
c.
stars support their weight by making energy.
d.
the helium flash occurs in degenerate matter.
e.
all stars on the main sequence have about the same radius.
Chapter 17 Solutions
21ST CENTURY ASTR.:SOLAR..(LL)-PACKAGE
Ch. 17.1 - Prob. 17.1CYUCh. 17.2 - Prob. 17.2CYUCh. 17.3 - Prob. 17.3CYUCh. 17.4 - Prob. 17.4CYUCh. 17 - Prob. 1QPCh. 17 - Prob. 2QPCh. 17 - Prob. 3QPCh. 17 - Prob. 4QPCh. 17 - Prob. 5QPCh. 17 - Prob. 6QP
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- Which of the following nuclear fuels does a one-solar-mass star use over the course of its entire evolution? a. hydrogen b. hydrogen and helium c. hydrogen, helium, and carbon d. hydrogen, helium, carbon, and neon e. hydrogen, helium, carbon, neon, and oxygenarrow_forwardThe diagram below shows an H-R diagram with life track of a 1-solar-mass star, with various stages labeled A through E. Temperature What will happen to the star after stage E? A. It will gain mass until it collapses under its own weight. B. It will begin burning carbon in its core. C. It will explode in a supernova. D. It will collapse to make a neutron star. E. It will eject a planetary nebula. Luminosity →arrow_forwardWhich of the following statements is wrong? A. A main-sequence star is cooler and brighter than it was as a protostar. B. Carbon fusion occurs in high-mass stars but not in low-mass stars because the cores of low-mass stars never contain significant amounts of carbon. C. when a main-sequence star exhausts its core hydrogen fuel supply, the core shrinks while the rest of the star expands. D. After a supernova explosion, the remains of the stellar core will be either a neutron star or a black hole.arrow_forward
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