Revised Catalog of Spectra of Mira Variables of Types ME and Se
Abstract
The earlier (1966) catalog is extended by the addition of 795 new spectrograms of Mira variables, a large number observed near maximum light and several in the lower parts of their light curves. In the blue region the intensities of the Ca I X4226, Cr I X4254, Sr ii x4077, Fe I 4O71 absorption lines, H and H in emission, and the strongest blue bands of AlO and ZrO are tabulated along with the spectral types. A revised table of the mean spectral types at normal maximum rightness is given, based upon all of the observations of both catalogs. Diagrams are given showing spectral type versus period and Ca X4226 intensity versus spectral type for the Mira variables. As an example of the use of the data for individual stars, spectral types and Ca X4226 intensities are plotted along the light curve of T Cep between 1963 and 1969. Subject headings: long-period variables - spectral classification
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- November 1974
- DOI:
- Bibcode:
- 1974ApJS...28..271K