Published April 1977
| Version v1
Journal article
Close companion to α Ursae Majoris
Description
After our recent article on the chromospheric emission features of the Mg II resonance doublet near 2800 A observed in α UMa, Bidelman pointed out to us that this star's close companion is considerably brighter than is stated in the Yale Catalogue of Bright Stars. We have synthesized the Mg II feature for this star from the Mg II observations obtained in other single stars. The results show that the close companion to α UMa is late A in type, in general agreement with the spectroscopic studies. This explains the apparent discrepancy in the Mg II doublet emission strengths between α UMa and β Gem
Additional details
Identifiers
- DOI
- 10.1086/130095;
Publishing Information
- Journal Title
- Publications of the Astronomical Society of the Pacific
- Journal Volume
- 89
- Journal Issue
- 528
- Series
- Publ. Astron. Soc. Pac.
- Journal Page Range
- 163
- ISSN
- 0004-6280
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 9361710
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- EMISSION SPECTRA; MAGNESIUM; STARS; STELLAR ATMOSPHERES; ULTRAVIOLET SPECTRA
- Descriptors DEC
- ALKALINE EARTH METALS; ATMOSPHERES; ELEMENTS; METALS; SPECTRA
Optional Information
- Notes
- Updated automatically by Metadata and Full-Text Enrichment Agent