Short-range correlation effects in neutron star's radial and non-radial oscillations *
| Autor: | Bin Hong, ZhongZhou Ren, Xue-Ling Mu |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Chinese Physics C. 46:065104 |
| ISSN: | 2058-6132 1674-1137 |
| DOI: | 10.1088/1674-1137/ac588d |
| Popis: | 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 -mode frequency by kHz. For the radial oscillations, it decreases the fundamental radial frequency by 0.75 ~ 0.85 kHz. Additionally, we refit the linear relationship between the average density and -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. |
| Databáze: | OpenAIRE |
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