Abstract
view Abstract Citations (26) References (41) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Possible iron abundance variations among superficially normal A stars. Cowley, C. R. ; Sears, R. L. ; Aikman, G. C. L. ; Sadakane, K. Abstract The wavelength coincidence statistics (WCS) method is used to examine the high-dispersion spectra of a sample of superficially normal late B and early A stars selected on the basis of low projected rotational velocities. Two lists of about 70 strong and weak Fe II lines were used, and line intensities predicted for 10,000 K. On the basis of WCS for stars having published fine analyses, it is suggested that several stars in the sample are deficient in iron and may have sharper-lined spectra than the weak-lined A or Lambda Bootis stars previously recognized. It is further suggested that weak-lined stars, which may represent a large fraction of the late B and early A stars, may have a part of their peculiar chemistry arising from small abundance fluctuations in the interstellar medium. Publication: The Astrophysical Journal Pub Date: March 1982 DOI: 10.1086/159722 Bibcode: 1982ApJ...254..191C Keywords: A Stars; Abundance; Early Stars; Iron; Peculiar Stars; Stellar Rotation; Stellar Spectra; B Stars; Interstellar Matter; Late Stars; Radial Velocity; Astrophysics full text sources ADS | data products SIMBAD (36)
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