Radial Velocity Measurements of Twenty-One Long-Period Variable Stars

1965 ◽  
Vol 77 ◽  
pp. 214 ◽  
Author(s):  
Charles L. Perry ◽  
William P. Bidelman
Keyword(s):  
Radial Velocity ◽  
Variable Stars ◽  
Velocity Measurements ◽  
Long Period ◽  
Period Variable

The Interpretation of Radial Velocity Observations of Long Period Variable Stars

1979 ◽  
Vol 46 ◽  
pp. 199-213
Author(s):  
L. A. Willson
Keyword(s):  
Radial Velocity ◽  
Velocity Structure ◽  
Theoretical Models ◽  
Variable Stars ◽  
Observational Constraints ◽  
The Third ◽  
Long Period ◽  
General Mass ◽  
Period Variable ◽  
Velocity Information

The first part of this paper contains a synthesis of the results of numerical and analytical theoretical models for the velocity structure of the atmospheres of the long period variable stars (LPVs). The details of these derivations have been presented elsewhere (Willson and Hill 1978; Hill and Willson 1978). The discussion of the models in this paper is therefore limited to summarizing the earlier results in a form appropriate to the interpretation of observed velocities. In the second part of the paper the methods described in the first part are applied to five stars with periods ranging from 150dto 407d, and masses and radii are derived from velocity information for each of these stars. In the third section a general mass-radius relationship for the long period variable stars is derived from these points and compared to independent observational constraints.

scholarly journals Observations of Long Period Variable Stars

1989 ◽  
Vol 106 ◽  
pp. 241-257
Author(s):  
T. Lloyd Evans
Keyword(s):  
Chemical Composition ◽  
Stellar Population ◽  
Variable Stars ◽  
Circumstellar Dust ◽  
Stellar Systems ◽  
Intrinsic Properties ◽  
Long Period ◽  
Large Samples ◽  
Period Variable ◽  
Infrared Wavelengths

The study of long period variable stars has been transformed in recent years by two observational developments. Large samples of stars have been observed at infrared wavelengths, providing knowledge of the intrinsic properties of the star as well as of circumstellar dust shells, and these observations have been extended to the variables in well defined stellar systems to allow their properties to be studied in relation to the stellar population to which they belong. Spectroscopic determinations of chemical composition have also provided several crucial insights.

scholarly journals The Evolving Radio Photospheres of Long-period Variable Stars

2018 ◽  
Vol 156 (1) ◽  
pp. 15 ◽  
Author(s):  
L. D. Matthews ◽  
M. J. Reid ◽  
K. M. Menten ◽  
K. Akiyama
Keyword(s):  
Variable Stars ◽  
Long Period ◽  
Period Variable
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