Published July 1, 1975 | Version v1
Journal article Metadata-only

Evolution and composition of Sirius and Procyon

Creators

  • 1. Washburn Observatory, University of Wisconsin-Madison

Description

Stellar models are calculated and compared to the new observational data available for Sirius and Procyon. Sirius can be fitted by normal compositions (X=0.7, Z=0.02) very near the zero-age main sequence. Procyon is more evolved, hence more ambiguous; an anomalous composition (high X or Z) or a smaller mass than the astrometric mass is necessary to fit its position in the H-R diagram. (auth)

Additional details

Identifiers

DOI
10.1086/153671;

Publishing Information

Journal Title
The Astrophysical Journal
Journal Volume
199
Journal Issue
1
Series
Astrophys. J.
Journal Page Range
127
ISSN
0004-637X

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
7226578
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
CHEMICAL COMPOSITION; COORDINATES; INTERFEROMETRY; MAIN SEQUENCE STARS; MASS; STAR EVOLUTION; STARS; STELLAR ATMOSPHERES; STRUCTURAL MODELS; TEMPERATURE DEPENDENCE; ULTRAVIOLET RADIATION
Descriptors DEC
ATMOSPHERES; ELECTROMAGNETIC RADIATION; RADIATIONS

Optional Information

Notes
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