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Horizontal-branch stellar evolutionThe results of canonical theory for the evolution of horizontal-branch (HB) stars are examined. Particular attention is given to how an HB star maintains the appropriate composition distribution within the semiconvective zone and how this composition is affected by the finite time-dependence with which convective boundaries actually move. Newly developed models based on time-dependent overshooting are presented for both the core-helium-exhaustion and main HB phases.
Document ID
19910044254
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sweigart, Allen V. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Astrophysics
Meeting Information
Meeting: Confrontation between Stellar Pulsation and Evolution
Location: Bologna
Country: Italy
Start Date: May 28, 1990
End Date: May 31, 1990
Accession Number
91A28877
Distribution Limits
Public
Copyright
Other

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