scholarly journals Nuclear symmetry energy and ther-mode instability of neutron stars

2012 ◽  
Vol 85 (4) ◽  
Author(s):  
Isaac Vidaña
Keyword(s):  
Neutron Stars ◽  
Symmetry Energy ◽  
Nuclear Symmetry Energy ◽  
Mode Instability

scholarly journals Density dependence of nuclear symmetry energy

2016 ◽  
Vol 31 (34) ◽  
pp. 1650194 ◽  
Author(s):  
B. Behera ◽  
T. R. Routray ◽  
S. K. Tripathy
Keyword(s):  
Neutron Stars ◽  
Density Dependence ◽  
Symmetry Energy ◽  
High Density ◽  
Nuclear Symmetry Energy ◽  
Density Behavior

High density behavior of nuclear symmetry energy is studied on the basis of the stiffest density dependence of asymmetric contribution to energy per nucleon in charge neutral n + p + e + [Formula: see text] matter under beta equilibrium. The density dependence of nuclear symmetry energy obtained in this way is neither very stiff nor soft at high densities and is found to be in conformity with recent observations of neutron stars.

EFFECTS OF THE NUCLEAR SYMMETRY ENERGY ON GRAVITATIONAL WAVES FROM THE AXIAL W-MODES OF ISOLATED NEUTRON STARS

2010 ◽  
Vol 19 (08n09) ◽  
pp. 1712-1719
Author(s):  
DE-HUA WEN ◽  
BAO-AN LI ◽  
PLAMEN G. KRASTEV
Keyword(s):  
Equation Of State ◽  
Neutron Stars ◽  
Gravitational Waves ◽  
Symmetry Energy ◽  
Laboratory Data ◽  
High Density ◽  
Nuclear Symmetry Energy ◽  
Nuclear Equation Of State ◽  
Eigen Frequencies ◽  
Density Behavior

The frequencies and damping times of the axial w-mode oscillations of neutron stars are investigated using a nuclear equation of state (EOS) partially constrained by the available terrestrial laboratory data. It is found that the nuclear symmetry energy E sym (ρ), especially its high density behavior, plays an important role in determining both the eigen-frequencies and the damping times of these oscillations.

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