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Title:
Spectral classification of southern-hemisphere Mira variables
Authors:
Crowe, R.
Affiliation:
AA(David Dunlap Observatory; Toronto, University, Toronto, Canada)
Publication:
Royal Astronomical Society of Canada, Journal (ISSN 0035-872X), vol. 78, June 1984, p. 103-126.
Publication Date:
06/1984
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL CATALOGS, MIRA VARIABLES, SOUTHERN SKY, STELLAR SPECTRA, VARIABLE STARS, CLASSIFICATIONS, LINE SPECTRA, SPECTRUM ANALYSIS, TABLES (DATA), VISIBLE SPECTRUM
Bibliographic Code:
1984JRASC..78..103C

Abstract

The catalog of Keenan, Garrison and Deutsch (1974) has been extended by the addition of 483 blue spectrograms of 72 southern-hemisphere Mira variables. About 190 direct and image-tube plates at a dispersion of 120 A/mm were obtained in Chile between 1977 and 1982. Along with the spectral types, emission ratios H-delta 4101/H-gamma 4340/H-beta 4861 and eye-estimated intensities of the Ca I 4226, Cr I 4254 and Sr II 4077 absorption lines have been tabulated. Data for the 15 best-studied Miras in the southern-hemisphere program are presented. In addition, spectral montages for six stars have been prepared to illustrate changes in the visual spectra of Mira variables through their respective cycles.

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