1. They observed an infrared absorption line at 2241 cm " 1. 2. More extreme frequency-dependence is visible in the absorption lines of cold gases. 3. Discovered in 1956 by Olin Wilson and K absorption line of calcium. 4. These same absorption lines do not suffer from the Zeeman effect either. 5. The advent of deep photographic imaging allowed absorption line spectroscopy. 6. The'n'suffix indicates the absorption lines are spread out broadly because the star is spinning rapidly. 7. I thought awestonomers always looked for specific emission and absorption lines to detect the stuff. 8. When the spectrum is examined, the absorption line features of both stars can be viewed. 9. They operate at the 1420 MHz frequency corresponding to an absorption line in atomic hydrogen. 10. The width of absorption lines may be determined by the spectrometer used to record it.
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