Published April 1980
| Version v1
Journal article
A spectroscopic analysis of the Alpha Centauri system
Description
The chemical composition of the major components of the bright, nearby system of Alpha Centauri is derived using high dispersion spectra. The abundances of 16 elements are found using a differential curve of growth analysis. The abundances indicate that both components of the α Cen system are twice as metal-rich as the Sun. This is evidence for the two components having a common origin. Scaled solar LTE model atmospheres for α Cen A and α Cen B are calculated using effective temperatures from Hα profiles and surface gravities from line profiles and ionization equilibrium. (author)
Additional details
Publishing Information
- Journal Title
- Mon. Not. R. Astron. Soc.
- Journal Volume
- 191
- Journal Issue
- 1
- Series
- Mon. Not. R. Astron. Soc.
- Journal Page Range
- 23-35
- ISSN
- 0035-8711
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 11533294
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CHEMICAL COMPOSITION; ELEMENT ABUNDANCE; LTE; SPECTROSCOPIC CURVE OF GROWTH; SPECTROSCOPY; STAR MODELS; STARS; STELLAR ATMOSPHERES
- Descriptors DEC
- ATMOSPHERES; DIAGRAMS; EQUILIBRIUM; INFORMATION; MATHEMATICAL MODELS; OPTICAL DEPTH CURVE; QUANTITY RATIO