Reduced Beta Decay Rates of Iron Isotopes for Supernova Physics

Journal Article · Tue Jul 07 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3192245· OSTI ID:21344255

Nabi, Jameel-Un ^[1]

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1. Faculty of Engineering Sciences, GIK Institute of Engineering Sciences and Technology, Topi 23460, N.W.F.P. (Pakistan)

During the late phases of stellar evolution beta decay on iron isotopes, in the core of massive stars, plays a crucial role in the dynamics of core-collapse. The beta decay contributes in maintaining a 'respectable' lepton-to-baryon ratio (PSI{sub e}) of the core prior to collapse which results in a larger shock energy to power the explosion. It is indeed a fine tuning of the parameter PSI{sub e} at various stages of supernova physics which can lead to a successful transformation of the collapse into an explosion. The calculations presented here might help in fine-tuning of PSI{sub e} for the collapse simulators of massive stars.

• OSTI ID: 21344255
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1150; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
79 ASTRONOMY AND ASTROPHYSICS
ANALOG SYSTEMS
BARYONS
BETA DECAY
BINARY STARS
DECAY
ELEMENTARY PARTICLES
ERUPTIVE VARIABLE STARS
EVOLUTION
FERMIONS
FUNCTIONAL MODELS
GRAVITATIONAL COLLAPSE
HADRONS
IRON ISOTOPES
ISOTOPES
KINETICS
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
NEUTRON STARS
NUCLEAR DECAY
NUCLEAR MODELS
NUCLEAR REACTION KINETICS
REACTION KINETICS
SHELL MODELS
SIMULATORS
STAR EVOLUTION
STARS
SUPERNOVAE
VARIABLE STARS