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Imagine two planets orbiting a star with orbits edge-on to the Earth. The peak Doppler shift...

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Physics

Imagine two planets orbiting a star with orbits edge-on to theEarth. The peak Doppler shift for each 75 m/s, but one has a periodof 7 days and the other has a period of 700 days. The star has amass of one solar mass. Assume 1 solar mass equals 2∗10^30.

1.) Calculate the mass of the shorter period planet.(Hint: See Mathematical Insight Finding Masses ofExtrasolar Planets)

2.) Calculate the mass of the longer period planet.

Answer & Explanation Solved by verified expert
4.3 Ratings (1047 Votes)
The Centre of mass of the star and planet system does not moveHence the planet and the star must have equal magnitudes ofmomentum and can be set equal to each other Let us consider themass    See Answer
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