Abstract
view Abstract Citations (11) References Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Turbulence and the Curve of Growth. Wrubel, Marshal H. Abstract Although eddies of all sizes affect the absorption-line contour, small eddies have greater effect upon the total absorption and the curve of growth. A weighting function s(k) is derived for various circumstances of line formation. It is shown that all eddies of diameter smaller than two and a half times the scale height of the atmosphere appear in the curve of growth. Therefore, to explain the large differences observed in supergiant spectra between line contours and curves of growth, this theory requires a spectrum of turbulence with considerable energy in very long wave lengths. Such a spectrum may possibly be due to the effect which turbulence at deep layers may have upon the higher regions of the atmosphere in which the lines are formed. Publication: The Astrophysical Journal Pub Date: November 1950 DOI: 10.1086/145357 Bibcode: 1950ApJ...112..424W full text sources ADS | data products SIMBAD (3)
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