Accession Number:
AD0236460
Title:
STUDY OF LUMINOSITIES OF LONG-PERIOD VARIABLES.
Descriptive Note:
Final rept. 1 Oct 58-31 Dec 59,
Corporate Author:
OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS
Personal Author(s):
Report Date:
1960-02-01
Pagination or Media Count:
6.0
Abstract:
A two-dimensional calssification was extended to more than 50 Mira variables. The need for some independent calibration of the classification in luminosity led to the study of the interstellar D-lines in the variables of high velocity. Individual absolute magnitudes are available for only 2 Mira variables X Oph and X Mon in the northern sky, but the agreement of their values with statistical means lends support to the conclusion that the majority of these stars have visual absolute magnitudes near -0.5 to -1.0 at maximum light. The classification suggests that there are a few of higher luminosity that could be termed supergiant variables. Work is reviewed on the absolute magnitude of the Mira variable X monocerotis. Author