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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE