The Figure Below Shows a Binary Star System

question 59

Multiple Choice

The figure below shows a binary star system.Which of the following correctly characterizes the spectrum of this system at the instant shown in the figure?

• A) Star A's spectral lines have a smaller blueshift, while star B's spectral lines have a larger redshift.
• B) Star A's spectral lines have a larger blueshift, while star B's spectral lines have a smaller redshift.
• C) Star A's spectral lines have a smaller redshift, while star B's spectral lines have a larger blueshift.
• D) Star A's spectral lines have a larger redshift, while star B's spectral lines have a smaller blueshift.

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Definitions:

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