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 0.2~0.3 kHz.For the radial oscillations,it decreases the fundamental radial frequency f_(1) by 0.75~0.85 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.
作者
Bin Hong
ZhongZhou Ren
Xue-Ling Mu
洪斌;任中洲;母雪玲(School of Astronomy and Space Science,Nanjing University,Nanjing 210023,China;Key Laboratory of Modem Astronomy and Astrophysics(Nanjing University),Ministry of Education,Nanjing 210023,China;School of Physics Science and Engineering,Tongji University,Shanghai 200092,China;College of Electronic Information and Electrical Engineering,Chengdu University,Chendu 610106,China)
基金
Supported by the National Key Research and Development Program of China(2017YFA0402600,2016YFE0129300)
the National SKA Program of China(2020SKA0120300)
the National Natural Science Foundation of China(11833003,11947211,119051)。
