On the moment of inertia and surface redshift of neutron star

Citation
Wf. Li et al., On the moment of inertia and surface redshift of neutron star, HIGH EN P N, 25(10), 2001, pp. 1006-1011
Citations number
16
Language
CHINESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
ISSN journal
0254-3052 → ACNP
Volume
25
Issue
10
Year of publication
2001
Pages
1006 - 1011
Database
ISI
SICI code
0254-3052(200110)25:10<1006:OTMOIA>2.0.ZU;2-U
Abstract
Using temperature, density and isospin dependent nuclear equation of state, we calculated the moment of inertia and surface redshift of neutron star b y resolving Tolman-Oppenheimer-Volkoff equation. It is found that the momen t of inertia and surface redshift strongly depend on the nuclear equation o f state. The equation of state with high value of uncompressibility and sym metry energy strength coefficient provides a big moment of inertia, while e ffective mass of nucleon has almost no effect on moment of inertia. Meanwhi le, the equation of state with high value of uncompressibility and effectiv e mass of nucleon provides a big surface redshift, while the symmetry energ y strength coefficient has almost no effect on surface redshift of neurtun star. The relationship between moment of inertia and mass is also given in this paper. By comparing the calculated results with the one obtained semie mpirically from astronomy, we find that a softer equation of state can prov ide a more reasonable result.