Published September 1982
| Version v1
Journal article
On the period of the pulsating R Coronae Borealis variable RY Sgr
Description
An analysis of observations of RY Sgr made between 1926 and 1978 shows the pulsation period to have decreased steadily during that time. The occurrence of pulsational minima can be well represented by a period which decreases at a rate of 5 x 10-4 day/cycle, a value in good agreement with theoretical models for the evolution of a hydrogen-deficient carbon star. (author)
Additional details
Publishing Information
- Journal Title
- Mon. Not. R. Astron. Soc.
- Journal Volume
- 200
- Journal Issue
- 3
- Series
- Mon. Not. R. Astron. Soc.
- Journal Page Range
- 1019-1024
- ISSN
- 0035-8711
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 14735314
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BRIGHTNESS; CARBON STARS; ELEMENT ABUNDANCE; HYDROGEN; PULSATIONS; STAR EVOLUTION; STAR MODELS; SUPERGIANT STARS; VARIABLE STARS; VARIATIONS
- Descriptors DEC
- ELEMENTS; GIANT STARS; MAIN SEQUENCE STARS; MATHEMATICAL MODELS; NONMETALS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; QUANTITY RATIO; STARS