Spectral line

Absorption lines for air, under indirect illumination, with the direct light source not visible, so that the gas is not directly between source and detector. Here, Fraunhofer lines in sunlight and Rayleigh scattering of this sunlight is the

Continuous spectrum of a incandescent lamp (mid) and discrete spectrum lines of a fluorescent lamp (bottom).

A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies. Spectral lines are often used to identify atoms and molecules from their characteristic spectral lines. These "fingerprints" can be compared to the previously collected fingerprints of atoms and molecules, and are thus used to identify the atomic and molecular components of stars and planets which would otherwise be impossible.

单词	Line broadening
释义	Line broadening 英语百科 Spectral line A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies. Spectral lines are often used to identify atoms and molecules from their characteristic spectral lines. These "fingerprints" can be compared to the previously collected fingerprints of atoms and molecules, and are thus used to identify the atomic and molecular components of stars and planets which would otherwise be impossible.
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Line broadening

Spectral line