Matches in SemOpenAlex for { <https://semopenalex.org/work/W2899648898> ?p ?o ?g. }
- W2899648898 abstract "The stellar equilibrium and collapse, including mainly white dwarfs, neutron stars and supper massive stars, is an interplay between general relativistic effects and the equation of state of nuclear matter. In the present work, we use the Chandrasekhar criterion of stellar instability by employing a large number of realistic equations of state (EoS) of neutron star matter. We mainly focus on the critical point of transition from stable to unstable configuration. This point corresponds to the maximum neutron star mass configuration. We calculate, in each case, the resulting compactness parameter, $beta=GM/c^2R$, and the corresponding effective adiabatic index, $gamma_{rm cr}$. The role of the trial function $xi(r)$ is presented and discussed in details. We found that it holds a model-independent relation between $gamma_{rm cr}$ and $beta$. This statement is strongly supported by the large number of EoS and it is also corroborated by using analytical solutions of the Einstein's field equations. In addition, we present and discuss the relation between the maximum rotation rate and the adiabatic index close to the instability limit. Accurate observational measurements of the upper bound of the neutron star mass and the corresponding radius, in connection with the present predictions, may help to impose constraints on the high density part of the neutron star equation of state." @default.
- W2899648898 created "2018-11-16" @default.
- W2899648898 creator A5022214236 @default.
- W2899648898 creator A5044320792 @default.
- W2899648898 date "2019-03-01" @default.
- W2899648898 modified "2023-09-25" @default.
- W2899648898 title "Constraints on the equation of state from the stability condition of neutron stars" @default.
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- W2899648898 doi "https://doi.org/10.1007/s10509-019-3539-7" @default.
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