@inproceedings{31d87f1d8a1d4ef583d2ff4c9f7143b4,
title = "Possible ambiguities in the equation of state for neutron stars",
abstract = "We addressed possible ambiguities on the properties of neutron stars (NSs) estimated in theoretical sides. First, roles of hyperons inside the NS are discussed through various relativistic mean field (RMF) theories. In particular, the extension of SU(6) spin-flavor symmetry to SU(3) flavor symmetry is shown to give rise to the increase of hyperon threshold density, similarly to the Fock term effects in RMF theories. As a result, about 2.0 solar mass is obtained with the hyperons. Second, the effect by the modified f(R) gravity, which leaves a room for the dark energy in the Einstein equation to be taken into account, is discussed for the NS in a strong magnetic field (MF). Our results show that the modified gravity with the Kaluza-Klein electro-magnetism theory expanded in terms of a length scale parameter may reasonably describe the NS in strong MF, so called magnetar. Even the super-soft equation of state is shown to be revived by the modified f(R) gravity.",
keywords = "Equation of State, Hyperons, Modified Gravity, Neutron Star, Strong Magnetic field",
author = "Cheoun, \{Myung Ki\} and Tsuyoshi Miyatsu and Ryu, \{C. Y.\} and Cemsinan Deliduman and Can G{\"u}ng{\"o}r and Vildan Kele{\c s} and Toshitaka Kajino and Mathews, \{Grant J.\}",
year = "2014",
doi = "10.1063/1.4874103",
language = "英语",
isbn = "9780735412286",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
pages = "414--419",
booktitle = "Origin of Matter and Evolution of Galaxies 2013 - Proceedings of the 12th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2013",
note = "12th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2013 ; Conference date: 18-11-2013 Through 21-11-2013",
}