Abstract
view Abstract Citations (2) References Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS New Solar Lines in the Spectral Region 1.97-2.49 μ. Goldberg, Leo ; Mohler, Orren C. ; Pierce, A. Keith ; McMath, Robert R. Abstract Measurements of wave length and of percentage central absorption are given for 109 solar lines in the region 1.97-2.49 of the infrared solar spectrum. The lines were found on tracings obtained with the high-dispersion spectrometers and Cashman PbS cells of the McMath-Hulbert Observatory at Lake Angelus and at the Mount Wilson Observatory. Forty-seven lines have been identified as arising from neutral atoms of H, Na, Si, Mg, Al, Ca, and Fe. The relative scarcity of solar lines in the 2.2 IL region is discussed, and a qualitative explanation is given in terms of the variation with wave length of the continuous absorption coefficient of H- combined with the solar temperature gradient. Publication: The Astrophysical Journal Pub Date: May 1950 DOI: 10.1086/145297 Bibcode: 1950ApJ...111..565G full text sources ADS |
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