Pseudo-complex general relativity and the slow rotation approximation for neutron stars

2019 ◽  
Vol 340 (1-3) ◽  
pp. 205-208 ◽  
Author(s):  
G. L. Volkmer ◽  
M. Razeira ◽  
D. Hadjimichef ◽  
F. Köpp ◽  
C. A. Z. Vasconcellos ◽  
...  
Keyword(s):  
General Relativity ◽  
Neutron Stars ◽  
Slow Rotation ◽  
Complex General Relativity

Pseudo-complex General Relativity and neutron stars

2014 ◽  
Vol 335 (6-7) ◽  
pp. 679-684 ◽  
Author(s):  
P. O. Hess ◽  
I. Rodríguez ◽  
W. Greiner
Keyword(s):  
General Relativity ◽  
Neutron Stars ◽  
Complex General Relativity

Baryonic properties of neutron stars within pseudo-complex General Relativity

2014 ◽  
Vol 335 (6-7) ◽  
pp. 745-750 ◽  
Author(s):  
I. Rodríguez ◽  
P. O. Hess ◽  
S. Schramm ◽  
W. Greiner
Keyword(s):  
General Relativity ◽  
Neutron Stars ◽  
Complex General Relativity

scholarly journals Stability Against Radial Perturbations of Slowly Rotating Neutron Stars

1981 ◽  
Vol 93 ◽  
pp. 327-327
Author(s):  
Kenzo Arai ◽  
Keisuke Kaminishi
Keyword(s):  
General Relativity ◽  
Equation Of State ◽  
Angular Velocity ◽  
Neutron Stars ◽  
Radial Displacement ◽  
Cold Neutron ◽  
Symmetric Body ◽  
Slow Rotation ◽  
Spherically Symmetric ◽  
Dynamical Equations

The dynamical equations governing pulsation in rotating neutron stars are derived in the framework of general relativity. Stellar models are constructed by using a realistic equation of state for cold neutron matter. Small radial displacement and slow rotation are treated as perturbations on spherically symmetric body. In these models the maximum masses are 1.761 M⊙ at the central density 3.461 × 1015 g cm−3 for a sequence of nonrotating configurations and 2.165 M⊙ for rotating models with the critical angular velocity (GM/R3)½.

Neutron stars within pseudo-complex general relativity

2014 ◽  
Vol 41 (10) ◽  
pp. 105201 ◽  
Author(s):  
Isaac Rodríguez ◽  
Peter O Hess ◽  
Stefan Schramm ◽  
Walter Greiner
Keyword(s):  
General Relativity ◽  
Neutron Stars ◽  
Complex General Relativity

Pseudo-complex General Relativity and Neutron Stars

2014 ◽  
pp. 255-264
Author(s):  
Peter O. Hess ◽  
Isaac Rodríguez ◽  
Walter Greiner
Keyword(s):  
General Relativity ◽  
Neutron Stars ◽  
Complex General Relativity

scholarly journals Ray-tracing in pseudo-complex General Relativity

2014 ◽  
Vol 442 (1) ◽  
pp. 121-130 ◽  
Author(s):  
T. Schönenbach ◽  
G. Caspar ◽  
P. O. Hess ◽  
T. Boller ◽  
A. Müller ◽  
...  
Keyword(s):  
General Relativity ◽  
Ray Tracing ◽  
Complex General Relativity

scholarly journals Neutron stars as probes of dark matter

2020 ◽  
Vol 29 (14) ◽  
pp. 2043028
Author(s):  
M. Ángeles Pérez-García ◽  
Joseph Silk
Keyword(s):  
General Relativity ◽  
Dark Matter ◽  
Equation Of State ◽  
Neutron Stars ◽  
Internal Structure ◽  
Stellar Objects ◽  
Ordinary Matter ◽  
Stable Solutions ◽  
The Universe

Neutron Stars (NSs) are compact stellar objects that are stable solutions in General Relativity. Their internal structure is usually described using an equation of state that involves the presence of ordinary matter and its interactions. However there is now a large consensus that an elusive sector of matter in the universe, described as dark matter, remains as yet undiscovered. In such a case, NSs should contain both, baryonic and dark matter. We argue that depending on the nature of the dark matter and in certain circumstances, the two matter components would form a mixture inside NSs that could trigger further changes, some of them observable. The very existence of NSs constrains the nature and interactions of dark matter in the universe.

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