In:
Publications of the Astronomical Society of Japan, Oxford University Press (OUP), Vol. 58, No. 3 ( 2006-06-25), p. 617-625
Abstract:
The abundances of eight elements (C through Fe) were determined in the primary star of the short-period Algol-type binary RZ Cas relative to the A3 V spectroscopic standard star $\alpha$ PsA. Definite under-abundances (by $-0.45 \,\mathrm{dex}$ or more) of Mg, Si, Ti, Cr, and Fe were established. On the other hand, light elements C and O show solar abundances, and Ca is slightly under-abundant ($\sim-0.3 \,\mathrm{dex}$). This abundance pattern demonstrates that RZ Cas shows a characteristic of mild $\lambda$ Boo-type stars. This finding raises a question on the physical relations between the metallicity (abundance anomaly), the pulsational characteristics, and the mass accretion processes.
Type of Medium:
Online Resource
ISSN:
0004-6264
,
2053-051X
DOI:
10.1093/pasj/58.3.617
Language:
English
Publisher:
Oxford University Press (OUP)
Publication Date:
2006
detail.hit.zdb_id:
2206640-8
detail.hit.zdb_id:
2083084-1
SSG:
16,12
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