The Strengths of Infrared CO and h, O Bands in Late-Type Stars
Abstract
The strengths of absorption bands due to H2O and CO at 2.1 and 2.3 have been measured for 163 supergiant, giant, and dwarf stars having spectral types from F2 to M8. The strengths of these bands are shown to correlate with spectral type and luminosity. Photometric indices that measure these band strengths should be useful in classifying late-type stars and determining the integrated spectral type of stellar systems. Subject headings: infrared - molecules - late-type stars - spectral classification
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 1973
- DOI:
- 10.1086/152341
- Bibcode:
- 1973ApJ...184..427B