Published June 15, 1974
| Version v1
Journal article
On the C2, CN, and CO indices of carbon stars
Description
The CO, CN, and C2 photometric indices of carbon stars can be simply related by plotting log CN!C2 versus log CO/C2. Our relation appears consistent with the hypothesis that carbon stars have only small changes in N/O ratio. Carbon stars that are Mira variables fall below our relation for non-Miras. The lower CN indices of the Miras may be related to an increase in the strength of their 11 Si3N4 peaks. Carbon stars of type J (13C rich) fall above our relation, suggesting that they have slightly larger N/O ratios than non-J stars. Subject headings: carbon stars - molecules - photometry
Additional details
Additional titles
- Augmented title (English)
- Non-miras, strength of their 11 #omega# Si_3N_4 peaks
Identifiers
- DOI
- 10.1086/152916;
Publishing Information
- Journal Title
- The Astrophysical Journal
- Journal Volume
- 190
- Journal Issue
- 3
- Series
- Astrophys. J.
- Journal Page Range
- 597
- ISSN
- 0004-637X
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 6159289
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CARBON; CARBON MONOXIDE; CARBON STARS; CHEMICAL COMPOSITION; COSMOCHEMISTRY; CYANOGEN; MOLECULES; PHOTOMETRY; VARIABLE STARS
- Descriptors DEC
- CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMISTRY; ELEMENTS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; STARS
Optional Information
- Notes
- Updated automatically by Metadata and Full-Text Enrichment Agent