本题目来源于试卷: Astrophysics and Cosmology,类别为 IB物理学
[问答题]
If you were located in a galaxy nmud5) o 1q(lerccm3e*ear the bss;jqd c0nnb8m l; oiw3ie3(+w5s4zuoundary of our observable universe, would ga3 j+ i w5s4b3eqocinn slw;0dzm(8s ;ulaxies in the direction of the Milky Way appear to be approaching you or receding from you? Explain.
参考答案: If you were located in a galaxy near the boundary of our observable universe, galaxies in the direction of the Milky Way would be receding from you. The outer “edges” of the observable universe are expanding at a faster rate than the points more “interior”, thus, due to a relative velocity argument, the slower galaxies in the direction of the Milky Way would look like they are receding from your faster galaxy near the outer boundary. Also see (Fig. Below).
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