524 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
8 papers · 1 filter
Bianchi type I cosmological models in Eddington-inspired Born-Infeld gravity
Tiberiu Harko, Francisco S. N. Lobo, M. K. Mak
We consider the dynamics of a barotropic cosmological fluid in an anisotropic, Bianchi type I space-time in Eddington-inspired Born-Infeld (EiBI) gravity. By assuming an isotropic…
Wormhole geometries supported by quark matter at ultra-high densities
Tiberiu Harko, Francisco S. N. Lobo, M. K. Mak
A fundamental ingredient in wormhole physics is the presence of exotic matter, which involves the violation of the null energy condition. In this context, we investigate the possib…
A Riccati equation based approach to isotropic scalar field cosmologies
Tiberiu Harko, Francisco S. N. Lobo, M. K. Mak
Gravitationally coupled scalar fields , distinguished by the choice of an effective self-interaction potential , simulating a temporarily non-vanishing cosmological term,…
Isotropic stars in general relativity
M. K. Mak, T. Harko
We present a general solution of the Einstein gravitational field equations for the static spherically symmetric gravitational interior spacetime of an isotropic fluid sphere. The…
Arbitrary scalar field and quintessence cosmological models
Tiberiu Harko, Francisco S. N. Lobo, M. K. Mak
The mechanism of the initial inflationary scenario of the universe and of its late-time acceleration can be described by assuming the existence of some gravitationally coupled scal…
Wormhole geometries in Eddington-inspired Born-Infeld gravity
Tiberiu Harko, Francisco S. N. Lobo, M. K. Mak +1
Eddington-inspired Born-Infeld gravity (EiBI) gravity is a recently proposed modified theory of gravity, based on the classic work of Eddington and on Born-Infeld nonlinear electro…
Structure of neutron, quark and exotic stars in Eddington-inspired Born-Infeld gravity
Tiberiu Harko, Francisco S. N. Lobo, M. K. Mak +1
We consider the structure and physical properties of specific classes of neutron, quark and "exoti"' stars in Eddington-inspired Born-Infeld (EiBI) gravity. The latter reduces to s…
Dark matter density profile and galactic metric in Eddington-inspired Born-Infeld gravity
Tiberiu Harko, Francisco S. N. Lobo, M. K. Mak +1
We consider the density profile of pressureless dark matter in Eddington-inspired Born-Infeld (EiBI) gravity. The gravitational field equations are investigated for a spherically s…