Stratification of chromium abundance in CP-stars alpha2 Canum Venaticorum, epsilon Ursae Majoris, Sirius and VEGA

Details Stratification of chromium abundance in CP-stars alpha2 Canum Venaticorum, epsilon Ursae Majoris, Sirius and VEGA Stratification of chromium abundance in CP-stars alpha2 Canum Venaticorum, epsilon Ursae Majoris, Sirius and VEGA

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995coska..25...39z&link_type=abstract

Contributions of the Astronomical Observatory Skalnate Pleso, Volume 25, p. 39-44

Astronomy and Astrophysics

Astronomy

5

Peculiar Stars, A Stars, Stellar Composition, Stratification, Abundance, Stellar Spectra, Chromium, Astronomical Spectroscopy, Line Spectra

Scientific paper

High S/N Reticon spectra of alpha2 CVn, epsilon UMa, Sirius and Vega are investigated to estimate the Cr-abundance and its possible depth distribution. While three of the stars show practically normal (homogeneous) distribution of the element, alpha2 CVn was found to be anomalous: the abundance of chromium decreases outwards of the atmosphere.

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