Temat: equation of state - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Anisotropic charged stars with quadratic equation state
Autorzy:: Malaver, Manuel
Powiązania:: https://bibliotekanauki.pl/articles/1178297.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Anisotropic charged matter distribution; compact stellar objects; energy density; quadratic equation of state
Opis:: In this paper, we present a new model of static spherically symmetric relativistic compact stellar objects with anisotropic charged matter distribution and quadratic equation of state together with a prescribed form for the gravitational potential Z used by Bhar and Murad (2016). A graphical analysis of the physical properties indicate indicates that the new model well behaved and not admit singularities in the matter and the charge density.
Źródło:: World Scientific News; 2017, 86, 3; 333-344
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Relativistic modeling of compact stars for charged anisotropic matter in a Tolman IV spacetime
Autorzy:: Malaver, Manuel
Powiązania:: https://bibliotekanauki.pl/articles/1178336.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Charged anisotropic matter
Relativistic objects
Tolman IV potential
electromagnetic field
lineal equation of state
Opis:: In this paper, we studied the behavior of relativistic objects considering Tolman IV form for the gravitational potential Z and a lineal equation of state within the framework of MIT-Bag model for the charged anisotropic matter. A physical analysis of electromagnetic field indicates that is regular in the origin and well behaved. The new obtained solution not admits singularities in the matter, charge density and metric functions. A graphical analysis indicates that the new stellar model satisfy all physical properties expected in a realistic star.
Źródło:: World Scientific News; 2017, 81, 2; 257-267
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Analytical models for compact stars with a linear equation of state
Autorzy:: Malaver, Manuel
Powiązania:: https://bibliotekanauki.pl/articles/1191971.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Einstein-Maxwell system
linear equation of state
charge density
MIT-Bag Model
metric function
exact solution
Opis:: In this paper, we found two new classes of solutions to the Einstein-Maxwell system of equations for compact stars assuming an anisotropic pressure and a linear equation of state for the matter distribution within the framework of MIT-Bag Model with a particular form of the metric function. The exact solutions can be written in terms of elementary function in presence of an electromagnetic field. All the obtained models have a singularity in the charge density but not admit singularities in the matter and metric functions at the centre.
Źródło:: World Scientific News; 2016, 50; 64-73
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Classes of relativistic stars with quadratic equation of state
Autorzy:: Malaver, Manuel
Powiązania:: https://bibliotekanauki.pl/articles/1194131.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Charge anisotropic matter distribution
Charge density
Field equations
Gravitational potential
Radial pressure
quadratic equation of state
Opis:: In this paper, we found new exact solutions to the Einstein-Maxwell system of equations with charged anisotropic matter distribution considering quadratic equation of state. We specify the gravitational potential Z(x) that depends of a adjustable parameter n and that allow integrate analytical the field equations in order to calculate the energy density, the radial pressure, the anisotropy, charge density and the mass function for different values of n. The obtained solutions can be written in terms of elementary and polynomial functions.
Źródło:: World Scientific News; 2016, 57; 58-68
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

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