The Crust Properties and Cooling of Strange Stars |
| |
| Authors: | ZX Ma ZG Dai YF Huang T Lu |
| |
| Institution: | (1) Department of Astronomy, Nanjing University, Nanjing, 210093;(2) IHEP, Chinese Academy of Sciences, Beijing, 100039;(3) Astronomical and Astrophysical Center of East China, Nanjing University, Nanjing, 210093 |
| |
| Abstract: | We investigate the influence of the following parameters on the crust properties of strange stars: the strange quark mass
(m
s), the strong coupling constant (αc) and the vacuum energy density (B). It is found that the mass density at the crust base of strange stars cannot reach the neutron drip density. For a conventional
parameter set of m
s=200 MeV, B
1/4 = 145 MeV and αc = 0.3, the maximum density at the crust base of a typical strange star is only 5.5 × 1010 gcm-3, and correspondingly the maximum crust mass is 1.4 ×10-6 M⊙. Subsequently, we present the thermal structure and the cooling behavior of strange stars with crusts of different thickness,
and under different diquark pairing gaps. Our work might provide important clues for distinguishing strange stars from neutron
stars. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
