Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 28, Problem 86E
The y-axis in the largest graph of Figure 28.27 is given in units of “redshift, z.” How is this related to velocity, as given in the y-axis of the smaller graph above it?
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The Andromeda Galaxy, M31, is the closest large spiral Galaxy to our Milky Way. When we lookat its chemical spectrum, we see that it's hydrogen alpha emission line has an observed wavelength of 655nm.
a. Calculate z, being careful with the sign
b. How fast is it moving in km/s
c. Is it redshifted or blueshifted? Is it moving toward or away from us?
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Chapter 28 Solutions
Conceptual Physical Science (6th Edition)
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