How Can Astronomers BEST Observe the 5-Minute Oscillations of the Sun's

question 67

Multiple Choice

How can astronomers BEST observe the 5-minute oscillations of the Sun's surface?

• A) Zeeman-effect measurements of magnetically sensitive lines
• B) high-resolution positional observations of the edge of the solar disk
• C) measurement of the modulation of radio emissions from the solar surface, similar to the modulation used to transmit sound signals by radio on Earth
• D) high-precision Doppler shifts of spectral lines

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