A regular rotating MOG compact object is derived that reduces to the Kerr black hole when the parameter = 0. Physical consequences of the dark compact object, which is regular everywhere in spacetime for > crit = 0:674 and is a rotating Kerr-MOG black hole for < …

We apply the Carter method to formulate the geodesic equations and the Hamilton-Jacobi method to find photon orbits around this higher-dimensional MOG dark compact object. We investigate the efects of extra dimensions and the STVG parameter α on the black hole’s shadow size.

We apply the Carter method to formulate the geodesic equations and the Hamilton–Jacobi method to find photon orbits around this higher-dimensional MOG dark compact object. We investigate the effects of extra dimensions and the STVG parameter on …

Abstract A regular rotating MOG (modified gravity) com-pact object is derived that reduces to the Kerr black hole when the parameter 0. Physical consequences of the dark compact object, which is regular everywhere in space-time for αcrit 0 .674 and is a rotating Kerr-MOG black α > = hole for α < αcrit are investigated.

2015年12月21日 · MOG non-relativistic acceleration law sets in to explain the rotation curves of galaxies and the dynamics of clusters in the present universe without detectable dark matter.

non-baryonic dark matter (J. R. Brownstein and JWM, 2006, JWM & VTT, 2007). It also can fit data for X-ray galaxy clusters without dark matter. The modified acceleration law is consistent with the solar system data. The MOG must also explain the following: •The CMB data including the power spectrum data;

In this paper, we study the motion of electrically neutral and charged particles moving in around a regular spherically symmetric MOG dark compact object to explore their related innermost stable circular orbit (ISCO) and energy flux.

MOdified Gravity (MOG), also known as Scalar-Tensor-Vector-Gravity (STVG), is a relativistic covariant extension of GR with a massive vector field and scalar fields. It was proposed by John. W. Moffat in 2006 [8] to address the issue of the dark matter component in a natural way.

We examine the implications of the presence of a quintessence scalar field on astrophysical observable such as quasinormal modes (QNMs), greybody factors (GFs), and thermodynamics.

We consider the case of rotating black holes in a dark-matter-emulating theory of gravity called MOG. The latter introduces a gravitational vector field with an associated gravitational charge proportional to the black hole mass and a scalar field in place of the gravitational constant.

dark matter by a modified gravity theory. The generally covariant Modified Gravity (MOG) theory is a scalar-tensor-vector theory (STVG, JM, JCAP, 0603 004 (2006), arXiv:0506021 [gr-qc]).

dark matter by a modified gravity theory. The generally covariant Modified Gravity (MOG) theory is a scalar-tensor-vector theory (STVG, JM, JCAP, 0603 004 (2006), arXiv:0506021 [gr-qc]).

Left: better fit with the new MOG theory, top: NGC 3198, bottom: NGC 6503. Top right: well-fitted by both approaches, UGC 11455, bottom right: neither of the approaches fit the data, NGC 2841.

Mog in the Dark Reviews The Dollar-a-Minute days marked the beginning of passenger travel and a steady increase in experimental flying, to bear its practical fruit in days to come. It leaves no stones unturned. This information enables the particular animal or plant to be identified by such traits as size, plumage or pelage, color, and

theory of gravity and a dark matter particle such as WIMPS, axions and fuzzy dark matter are postulated to belong to the standard particle model. The present work introduces a simplified formulation of modified gravity (MOG), also called Scalar-Tensor-Vector-Gravity (STVG), that avoids unused generality of the orig-inal version [2].

Mog and Barnaby Judith Kerr,2020-03-03 Mog the Forgetful Cat is back in this reissue of a classic adventure, full of lift -the-flap fun. Mog and her family have a visitor. But what is the surprise waiting for Mog in the big green basket? Lift the flaps and find out A brand new

Mog and Barnaby Judith Kerr,2020-03-03 Mog the Forgetful Cat is back in this reissue of a classic adventure, full of lift -the-flap fun. Mog and her family have a visitor.

2025年1月9日 · Abstract This article explores the motion of massive particles in the gravitational field of a modified gravity (MOG) black hole (BH), characterized by the parameter α. Using the Hamiltonian formalism, the geodesic equations and the effective potential governing particle trajectories are derived.

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We study the background cosmological properties of the MOG model and structure formation at the linear perturbation level. We compare the two models with the currently available cosmological