The Density-Dependent Correlations among Observables in Nuclear Matter and Hyperon-Rich Neutron Stars

Table 2

The maximum masses, 𝑀_max, and central energy densities, ℰ_𝐶 (10¹⁵g/cm³), of neutron stars produced by way of (a) (𝑛,𝑝,𝑒)-(𝑛,𝑝,Σ⁻,𝑒) and (b) (𝑛,𝑝,𝑒)-(𝑛,𝑝,Λ,𝑒) are listed, respectively, with the same coupling constants. The EOS of the hyperon phase (𝑛,𝑝,Σ⁻,𝑒) and (𝑛,𝑝,Λ,𝑒) is calculated with the ratio 𝑟^𝜎_𝐻𝑁=𝑔_𝜎𝐻/𝑔_𝜎𝑁=1.0,2/3,1/3 [26].

(a)

(𝑛,𝑝,𝑒)-(𝑛,𝑝,Σ^−,𝑒)
𝑟^𝜎Σ^−𝑁	𝑀max	ℰ𝑐
1.00	2.22	2.14
2/3	2.08	2.24
1/3	1.93	1.21

(b)

(𝑛,𝑝,𝑒)-(𝑛,𝑝,Λ,𝑒)
𝑟^𝜎Λ𝑁	𝑀max	ℰ𝑐
1.00	2.22	2.15
2/3	1.67	1.00
1/3	1.56	1.02