Magnetized anisotropic stars

Abstract

We extend a known solution generating technique for isotropic fluids in order to construct more general models of anisotropic stars with poloidal magnetic fields. In particular, we discuss the magnetized versions of some well-known exact solutions describing anisotropic stars and dark energy stars and we describe some of their properties.

MGD-decoupled black holes, anisotropic fluids and holographic entanglement entropy

“…In fact, two parameters enter in the respective ratio 2 , displayed in Eq. (52). First, the full scenario about the influence of the brane tension in the anisotropy parameter was studied, restricting to the interval −1 ξ 0, where it is possible to see the major contribution of the brane tension aggregated with the anisotropy parameter ψ.…”

“…Hence, anisotropic stars are more likely to exist in astrophysics, being also more stable, as discussed in Refs. [40,[50][51][52][53][54][55][56][57]. A formidable step in this direction is the recent direct observation of anisotropic compact configurations, through the detection of gravitational waves.…”

Gravitational decoupling of generalized Horndeski hybrid stars

“…The gravitational decoupling was also used to study gravity coupled to hidden gauge fields [30] and to derive new physical features of superfluid stars [31]. Other models involving the gravitational decoupling have been developed [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49], with relevant applications to recently observed anisotropic stellar configurations [50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67]. Also, the quantum entanglement entropy of anisotropic gravitational decoupled black holes revealed important directions towards placing the gravitational decoupling method in gauge/gravity duality [68,69].…”

Gravitational decoupling and superfluid stars

“…[31,32]. The MGD-decoupling has been also scrutinized and applied in diverse frameworks [33][34][35][36][37][38][39][40][41][42][43], also enclosing the analysis and scrutiny of recently observed anisotropic stars [44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59]. Lower dimensional gravitational decoupling models were reported in Refs.…”