Equation of state of dense matter and the minimum mass of cold neutron stars
نویسندگان
چکیده
منابع مشابه
Spin and Isospin Asymmetry, Equation of State and Neutron Stars
In the present work, we have obtained the equation of state for neutron star matter considering the in uence of the ferromagnetic and antiferromagnetic spin state. We have also investigated the structure of neutron stars. According to our results, the spin asymmetry stiens the equation of state and leads to high mass for the neutron star.
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Theoretical models of the equation of state (EOS) of neutronstar matter (starting with the crust and ending at the densest region of the stellar core) are reviewed. Apart from a broad set of baryonic EOSs, strange quark matter, and even more exotic (abnormal and Q-matter) EOSs are considered. Results of calculations of Mmax for non-rotating neutron stars and exotic compact stars are reviewed, w...
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I discuss constraints on the equation of state of matter at supra-nuclear densities that can be derived from observations of neutron stars. I focus on recent work on Vela X-1, which may well be substantially more massive than the canonical 1.4 M ⊙ , and on the prospects offered by the 'isolated' or 'thermally-emitting' neutron stars. 1. The equation of state for ultra-dense matter To understand...
متن کاملApparent radii of neutron stars and equation of state of dense matter
Apparent (radiation) radius of neutron star, R∞, depends on the star gravitational mass in quite a different way than the standard coordinate radius in the Schwarzschild metric, R. We show that, for a broad set of equations of state of dense matter, R∞(Mmax) for the configurations with maximum allowable masses is very close to the absolute lower bound on R∞ at fixed M , resulting from the very ...
متن کاملspin and isospin asymmetry, equation of state and neutron stars
in the present work, we have obtained the equation of state for neutron star matter considering the in uence of the ferromagnetic and antiferromagnetic spin state. we have also investigated the structure of neutron stars. according to our results, the spin asymmetry sti ens the equation of state and leads to high mass for the neutron star.
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2002
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20020131