Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Textbook Question
Chapter 12, Problem 1RQ
Why is it difficult to specify the dimensions of the disk and halo?
Expert Solution & Answer
To determine
The region why difficult to specify the dimensions of the disk and halo?
Explanation of Solution
The halo primarily contains singular old stars and bunches of old stars ("globular groups"). The halo additionally contains "dark matter," the material that we can't see yet whose gravitational force can be estimated. The Milky Way's halo might be more than 130,000 light years across.
The Milky Way's circle is 100,000 light a very long time crosswise over and 1,000 light years thick. Disks contains for the most part young stars, gas and dust, these are concentrated in winding arms. Some old stars are additionally present.
As we know, we are in the milky way galaxy, the view of the entire galaxy and universe is obstructed by gas and dust, thus it is difficult to specify the dimensions of the disk and halo.
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Chapter 12 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 12 - Why is it difficult to specify the dimensions of...Ch. 12 - Why didn’t astronomers before Shapley realize how...Ch. 12 - Prob. 3RQCh. 12 - Prob. 4RQCh. 12 - Prob. 5RQCh. 12 - Prob. 6RQCh. 12 - Prob. 7RQCh. 12 - Prob. 8RQCh. 12 - Prob. 9RQCh. 12 - Prob. 10RQ
Ch. 12 - Prob. 11RQCh. 12 - Prob. 12RQCh. 12 - Prob. 13RQCh. 12 - Prob. 14RQCh. 12 - Prob. 15RQCh. 12 - Prob. 16RQCh. 12 - Prob. 1DQCh. 12 - Prob. 2DQCh. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - Prob. 3PCh. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - If the Sun is 4.6 billion years old, how many...Ch. 12 - Prob. 9PCh. 12 - Prob. 10PCh. 12 - Prob. 11PCh. 12 - Prob. 12PCh. 12 - Prob. 1LTLCh. 12 - Prob. 2LTL
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