Short-range correlation effects in neutron star's radial and non-radial oscillations

被引：9

作者：

Hong, Bin ^{[1
,2
]}

Ren, ZhongZhou ^{[3
]}

Mu, Xue-Ling ^{[4
]}

机构：

[1] Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Peoples R China

[2] Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210023, Peoples R China

[3] Tongji Univ, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China

[4] Chengdu Univ, Coll Elect Informat & Elect Engn, Chengdu 610106, Peoples R China

来源：

CHINESE PHYSICS C | 2022年 / 46卷 / 06期

基金：

中国国家自然科学基金;

关键词：

neutron stars; nuclear astrophysics; massive stars; G-MODE OSCILLATIONS; EQUATION-OF-STATE; MEAN-FIELD THEORY; GRAVITATIONAL-WAVES; NUCLEAR-EQUATION; DENSITY; CONSTRAINTS; PULSATIONS; STABILITY; DYNAMICS;

D O I：

10.1088/1674-1137/ac588d

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

In this study, we determine the influence of the nucleon-nucleon short range correlation (SRC) on static spherically symmetric neutron stars (NSs) from the perspectives of radial and nonradial oscillations for the first time. We revise the equation of state and coupling parameters in the relativistic mean field theory after considering the SRC effect, and select the hyperon coupling parameters as the SU(3) model. For the non-radial oscillations, the SRC effect decreases the f-mode frequency by 0.2 similar to 0.3 kHz. For the radial oscillations, it decreases the fundamental radial frequency f(1) by 0.75 similar to 0.85 kHz. Additionally, we refit the linear relationship between the average density and f-mode frequency for SRC. Combining the characteristics of the radial and non-radial frequencies, we provide a view of inferring the maximum mass of NSs. Owing to the characteristics of the SRC influence on the radial frequency, we expect that the SRC can be tested by future observation and can also be used as a probe for the structure inside NSs.

引用

页数：18