scholarly journals Asymmetric neutrino emission from magnetized proto-neutron star matter including hyperons in relativistic mean field theory

2011 ◽  
Vol 83 (8) ◽  
Author(s):  
Tomoyuki Maruyama ◽  
Toshitaka Kajino ◽  
Nobutoshi Yasutake ◽  
Myung-Ki Cheoun ◽  
Chung-Yeol Ryu
Keyword(s):  
Field Theory ◽  
Neutron Star ◽  
Mean Field Theory ◽  
Mean Field ◽  
Neutrino Emission ◽  
Neutron Star Matter ◽  
Relativistic Mean Field Theory ◽  
Relativistic Mean Field ◽  
Proto Neutron Star

scholarly journals STRUCTURE AND PROPERTIES OF NEUTRON STARS IN THE RELATIVISTIC MEAN-FIELD THEORY

2001 ◽  
Vol 10 (05) ◽  
pp. 607-624 ◽  
Author(s):  
ILONA BEDNAREK ◽  
RYSZARD MANKA
Keyword(s):  
Field Theory ◽  
Neutron Star ◽  
Neutron Stars ◽  
Mean Field Theory ◽  
Mean Field ◽  
Neutron Star Matter ◽  
Relativistic Mean Field Theory ◽  
X Ray ◽  
Relativistic Mean Field ◽  
Bulk Parameters

Properties of rotating neutron stars with the use of relativistic mean-field theory are considered. The performed analysis of neutron star matter is based on the nonlinear Lgrangian density. The presence of nonlinear interaction of vector mesons modifies the density dependence of the ρ field and influences bulk parameters of neutron stars. The observed quasiperiodic X-ray oscillations of low mass X-ray binaries can be used in order to constrain the equation of state of neutron star matter. Having assumed that the maximum frequency of the quasiperiodic oscillations originates at the circular orbit it is possible to estimate masses and radii of neutron stars.

NEUTRON STARS WITH KAON CONDENSATION IN RELATIVISTIC EFFECTIVE MODEL

2013 ◽  
Vol 22 (05) ◽  
pp. 1350026 ◽  
Author(s):  
CHEN WU ◽  
WEI-LIANG QIAN ◽  
YU-GANG MA ◽  
JI-FENG YANG
Keyword(s):  
Field Theory ◽  
Neutron Star ◽  
Neutron Stars ◽  
Nuclear Matter ◽  
Optical Potential ◽  
Mean Field Theory ◽  
Mean Field ◽  
Neutron Star Matter ◽  
Relativistic Mean Field ◽  
Kaon Condensation

Relativistic mean-field theory with parameter sets FSUGold and IU-FSU is extended to study the properties of neutron star matter in β equilibrium by including Kaon condensation. The mixed phase of normal baryons and Kaon condensation cannot exist in neutron star matter for the FSUGold model and the IU-FSU model. In addition, it is found that when the optical potential of the K- in normal nuclear matter UK ≳ -100 MeV , the Kaon condensation phase is absent in the inner cores of the neutron stars.

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