Photoelectric two-dimensional spectral classification of M supergiants.
Abstract
A photoelectric system defined by eight narrow bands between 0.7 and 1.1 microns has been used to measure nearly all M supergiants that have been classified on the MK system. The photometric TiO and CN indices reproduce the two-dimensional MK classifications to the accuracy of the MK types themselves. Mean fluxes and spectral classifications are presented for 128 stars.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- May 1978
- DOI:
- 10.1086/156136
- Bibcode:
- 1978ApJ...222..209W
- Keywords:
-
- Electrophotometry;
- M Stars;
- Stellar Spectra;
- Stellar Spectrophotometry;
- Supergiant Stars;
- Astronomical Catalogs;
- Infrared Radiation;
- Interstellar Extinction;
- Late Stars;
- Stellar Luminosity;
- Titanium Oxides;
- Vanadium Oxides;
- Astronomy;
- M Supergiants:Photometry;
- M Supergiants:Spectral Classification