41 Sextantis A - Prototype of a new class among AM stars

Details 41 Sextantis A - Prototype of a new class among AM stars 41 Sextantis A - Prototype of a new class among AM stars

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...365..336s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 365, Dec. 10, 1990, p. 336-341.

Astronomy and Astrophysics

Astrophysics

11

A Stars, Peculiar Stars, Stellar Spectra, Stellar Structure, Abundance, Metallicity, Stellar Magnetic Fields, Stellar Spectrophotometry

Scientific paper

Results are presented on spectroscopic observations conducted from 1978 to 1988 on the single-line Am star 41 Sextantis A, carried out with the Meinel spectrograph attached to the focus of the Japal-Rangapur Observatory's telescope. It was found that many of blended Fe lines in the 41 Sex A spectrum peaked around 0.25, 0.50, 0.75, and 1.0 of its orbital phase, indicating the presence of abundance patches that might be formatted by the surface magnetic field configuration, a phenomenon not previously observed on Am stars, although being akin to Ap stars. It is suggested that 41 Sex A might be a prototype of a new class among Am stars.

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