Quasar spectra often show many absorption lines that all appear to be as a result of the same electron transition (such as level 1 to level

Question

Quasar spectra often show many absorption lines that all appear to be as a result of the same electron transition (such as level 1 to level 2 in hydrogen) but that fall at different wavelengths in the spectrum. Why do we think this is the case?

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Trúc Chi 1 month 2021-08-02T08:52:29+00:00 1 Answers 1 views 0

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    2021-08-02T08:53:58+00:00

    Answer: Because of different redshift of cloud.

    Explanation:

    We are seeing absorption lines from clouds of gas that lie between us and the quasar, and therefore each cloud has a different redshift.

    A quasar’s spectrum is hugely redshifted. And most astronomers think this large redshift tells us about the distance to the quasar.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )