365 citations · 897 across the 14 of their papers we have counts for
14 papers
Correspondence of Gravity Singularities in Jordan and Einstein Frames
Sebastian Bahamonde, S. D. Odintsov, V. K. Oikonomou +1
We study the finite time singularity correspondence between the Jordan and Einstein frames for various gravity theories. Particularly we investigate the ordinary pure …
Cosmological dynamics of extended chameleons
Nicola Tamanini, Matthew Wright
We investigate the cosmological dynamics of the recently proposed extended chameleon models at both background and linear perturbation levels. Dynamical systems techniques are empl…
Conformal transformations in modified teleparallel theories of gravity revisited
Matthew Wright
It is well known that one cannot apply a conformal transformation to gravity to obtain a minimally coupled scalar field model, and thus no Einstein frame exists for g…
The Einstein static universe in Scalar-Fluid theories
Christian G. Boehmer, Nicola Tamanini, Matthew Wright
A new Lagrangian framework has recently been proposed to describe interactions between relativistic perfect fluids and scalar fields. In this paper we investigate the Einstein stat…
Slowly rotating charged fluid balls in the presence of a cosmological constant
Matthew Wright
We examine charged slowly rotating perfect fluids in the presence of a cosmological constant. The asymptotic form of the vacuum solutions to the linearised Einstein-Maxwell field e…
Teleparallel quintessence with a nonminimal coupling to a boundary term
Sebastian Bahamonde, Matthew Wright
We propose a new model in the teleparallel framework where we consider a scalar field nonminimally coupled to both the torsion and a boundary term given by the divergence of th…
Modified teleparallel theories of gravity
Sebastian Bahamonde, Christian G. Boehmer, Matthew Wright
We investigate modified theories of gravity in the context of teleparallel geometries. It is well known that modified gravity models based on the torsion scalar are not invariant u…
Buchdahl's inequality in five dimensional Gauss-Bonnet gravity
Matthew Wright
The Buchdahl limit for static spherically symmetric isotropic stars is generalised to the case of five dimensional Gauss-Bonnet gravity. Our result depends on the sign of the Gauss…
Buchdahl type inequalities in -dimensions
Matthew Wright
Spherically symmetric anisotropic static compact solutions to the Einstein equations in dimension are considered. Various matter models are examined and upper bounds on th…
Interacting quintessence from a variational approach Part II: derivative couplings
Christian G. Boehmer, Nicola Tamanini, Matthew Wright
We consider an original variational approach for building new models of quintessence interacting with dark or baryonic matter. The coupling is introduced at the Lagrangian level us…
Interacting quintessence from a variational approach Part I: algebraic couplings
Christian G. Boehmer, Nicola Tamanini, Matthew Wright
We present a new approach to build models of quintessence interacting with dark or baryonic matter. We use a variational approach for relativistic fluids to realize an effective de…
Slowly rotating perfect fluids with a cosmological constant
Christian G. Boehmer, Matthew Wright
Hartle's slow rotation formalism is developed in the presence of a cosmological constant. We find the generalisation of the Hartle-Thorne vacuum metric, the Hartle-Thorne-(anti)-de…
On galaxy rotation curves from a continuum mechanics approach to modified gravity
Christian G. Boehmer, Nicola Tamanini, Matthew Wright
We consider a modification of General Relativity motivated by the treatment of anisotropies in Continuum Mechanics. The Newtonian limit of the theory is formulated and applied to g…
Spatially-Resolved Millimeter-Wavelength Maps of Neptune
S. H. Luszcz-Cook, I. de Pater, M. Wright
We present maps of Neptune in and near the CO (2-1) rotation line at 230.538 GHz. These data, taken with the Combined Array for Research in Millimeter-wave Astronomy (CARMA) repres…