Three types of binary stars.
Three types of binary stars.
Three types of binary stars.
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A Dilemma<br />
• Spectroscopic binaries <strong>of</strong>ten show double the<br />
absorption lines <strong>of</strong> a regular spectrum. But the<br />
wavelength at which a line forms does not<br />
depend on the type <strong>of</strong> star. It is set by the<br />
element that is giving <strong>of</strong>f the light. Why don’t<br />
the two absorption lines fall right on top <strong>of</strong> each<br />
other?
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