Asymmetries in the spectral lines of Procyon

Details Asymmetries in the spectral lines of Procyon Asymmetries in the spectral lines of Procyon

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...251..583g&link_type=abstract

Astrophysical Journal, Part 1, vol. 251, Dec. 1981, p. 583, 584. Research supported by the Natural Sciences and Engineering Res

Astronomy and Astrophysics

Astrophysics

26

Astronomical Spectroscopy, Line Shape, Spectral Line Width, Stellar Spectra, Asymmetry, Calcium, Solar Spectra, Stellar Spectrophotometry

Scientific paper

Asymmetries, including a blueshifted core asymmetry, are measured in the spectral line profiles of the F5 IV-V star Procyon. Amplitudes of the asymmetry are proportional to line strengths, and characteristic widths change modestly with line strength, ranging from 2.5 km/s to 3.5 km/s. The scaling of asymmetry amplitude with line strength implies that all lines have approximately the same shape regardless of their strength.

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