http://arxiv.org/abs/2012.13673
We use 30 well-known parameter sets of the relativistic mean-field model to calculate various properties of the neutron star (NS) like mass, radius, central densities and curvature. Predictive competence of the various RMF parameter sets are discussed and compared with observational data of the NICER and GW170817. We try to correlate some properties of the NS like compactness, curvature and radius. We substantiate a correlation between the curvature and compactness of different masses of the NS. The compactness and the curvature of a NS of certain mass shows a strong correlation (0.995 correlation coefficient) for assumed parameter sets. Similarly, we establish another correlation between the radius and curvature of the NS. We also incorporate a three-dimensional correlation between these properties of the NS.
S. Biswal, H. Das, A. Kumar, et. al.
Tue, 29 Dec 20
28/66
Comments: 9 pages, 8 figures, 2 tables, comments welcome