The spectral behaviour of A-type metallic line spectroscopic binary 41 Sex A

Details The spectral behaviour of A-type metallic line spectroscopic binary 41 Sex A The spectral behaviour of A-type metallic line spectroscopic binary 41 Sex A

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990basi...18..299r&link_type=abstract

Astronomical Society of India, Bulletin (ISSN 0304-9523), vol. 18, Sept.-Dec. 1990, p. 299-303.

Astronomy and Astrophysics

Astronomy

A Stars, Binary Stars, Metallic Stars, Metallicity, Stellar Spectra, Variable Stars, Orbital Elements, Radial Velocity, Stellar Luminosity, Stellar Magnetic Fields

Scientific paper

Revised orbital elements of the A3 Vm type single line spectroscopic binary 41 Sex A are presented. Along with many Am stars, 41 Sex A also shows a pseudo-luminosity effect quite clearly at a higher dispersion. Metallic lines in its spectra show pronounced variation with phase, the maximum strengths occurring at approximately 0.25, 0.5, 0.75, and 1.0 of its orbital phase. The star appears to have four abundance patches indicating a quadrupole magnetic configuration. The phase modulated spectral variation in 41 Sex A suggests that it represents a new class of Am variables.

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