Isospin asymmetric nuclear matter and properties of axisymmetric neutron stars

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.062801· OSTI ID:21388572

Chowdhury, Partha Roy; Bhattacharyya, Abhijit ^[1]; Basu, D N ^[2]

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1. Department of Physics, University of Calcutta, 92 Acharya Prafulla Chandra Road, Kolkata 700 009 (India)
2. Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700 064 (India)

Pure hadronic compact stars that are above a limiting value (approx =1.6M{sub c}entre dot) of their gravitational masses, to which predictions of most of other equations of state are restricted, can be reached from the equation of state (EOS) obtained using the density-dependent M3Y (DDM3Y) effective interaction. This effective interaction is found to be quite successful in providing a unified description of elastic and inelastic scattering, various radioactivities, and nuclear matter properties. We present a systematic study of the properties of pure hadronic compact stars. The beta-equilibrated neutron star matter using this EOS with a thin crust is able to describe highly massive compact stars, such as PSR B1516+02B with a mass M=1.94{sub -0.19}{sup +0.17}M{sub c}entre dot and PSR J0751+1807 with a mass M=2.1+-0.2M{sub c}entre dot to a 1sigma confidence level.

• OSTI ID: 21388572
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevC.81.062801; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASYMMETRY
AXIAL SYMMETRY
DENSITY
EQUATIONS OF STATE
FORECASTING
GRAVITATION
HADRONS
INELASTIC SCATTERING
INTERACTIONS
ISOSPIN
LIMITING VALUES
MASS
NEUTRON STARS
NUCLEAR MATTER
RADIOACTIVITY
ELEMENTARY PARTICLES
EQUATIONS
MATTER
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
SCATTERING
STARS
SYMMETRY