Spectroscopic study of the chemically peculiar star HD 5797

Details Spectroscopic study of the chemically peculiar star HD 5797 Spectroscopic study of the chemically peculiar star HD 5797

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.206..249i&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 206, no. 2, p. 249-257

Physics

Chemical Composition, Line Spectra, Peculiar Stars, Stellar Composition, Variable Stars, Line Shape, Stellar Physics, Stellar Spectrophotometry

Scientific paper

Based on 19 spectrograms with a dispersion of 17.5 A/mm, line spectrum variations in the CP2 star HD 5797 are studied. Equivalent width and central depth measurements show that intensities of 34 unblended lines vary with an amplitude of about 2 times for Fe, Ti and Sr lines, and 2.5 times for Cr lines. A search for improved period of the star has been carried out. The obtained new value is: P equals 68.255 +/- 0.004 days. An attempt to give a qualitative explanation of the photometric behavior is made.

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