Triple mode Cepheid masses
Conference
·
OSTI ID:6604863
Cepheid wind enrichment from the surface and the instability mixing below the convection zones compete to give much deeper large Y homogeneous and transition layers than previously thought. The theoretical model data and derived masses are presented. It is shown that if the helium enrichment goes to 250,000 K (l-q = 2 x 10/sup -4/) with a transition zone to 300,000 K (1-q = 5 x 10/sup -4/) for AC And, its periods can be explained. For TU Cas a very unlikely model is required to give the three periods reported previously. 28 references. (JFP)
- Research Organization:
- Los Alamos Scientific Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6604863
- Report Number(s):
- LA-UR-78-1563; CONF-780690-2
- Country of Publication:
- United States
- Language:
- English
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