Multiple Choice
Via the rotation curve method, we can estimate the mass of galaxies like M31 from
A) Doppler shifts of material at the edge of its disk and computing P = 2πr/v.
B) the distances of the Doppler shift points from its center.
C) Doppler shifts of material at the edge of its disk and computing P = 2πr/v and the distances of the Doppler shift points from its center.
D) It is impossible to estimate the mass of M31.
Correct Answer:
Verified
Correct Answer:
Verified
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