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Title:
Metallicism and pulsation - The marginal metallic line stars
Authors:
Kurtz, D. W.
Affiliation:
AA(Texas, University; McDonald Observatory, Austin, Tex.)
Publication:
Astrophysical Journal, Part 1, vol. 221, May 1, 1978, p. 869-880. (ApJ Homepage)
Publication Date:
05/1978
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
A Stars, Astronomical Photometry, Line Spectra, Metallic Stars, Stellar Spectra, Variable Stars, Data Acquisition, Hertzsprung-Russell Diagram, Light Curve, Stellar Spectrophotometry
DOI:
10.1086/156090
Bibliographic Code:
1978ApJ...221..869K

Abstract

Evidence is presented that HR 4594 and HR 8210 are pulsating marginal Am stars. It is suggested that (1) classical Am stars do not pulsate, (2) evolved Am stars may pulsate, and (3) marginal Am stars may pulsate. It is further suggested that, within the Am domain, temperature, age, rotation, and pulsation are sufficient to determine whether a star will be Am, marginal Am, or spectrally normal.

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