64 citations · 106 across the 8 of their papers we have counts for
8 papers
Universal Basic Mass Density inside Dark Matter Halos
Fateen Haddad, Nidal Haddad
In this work we propose a universal basic mass density and a universal basic metric inside dark matter halos in the framework of Einstein equations providing an analytical ground f…
Solar System, Astrophysics, and Cosmology from the Derivative Expansion
Fateen Haddad, Nidal Haddad
In this paper we show how the solar system, the galactic, and the cosmological scales, are accommodated in a single framework, namely, in the derivative expansion framework. We con…
A Black Hole inside Dark Matter and the Rotation Curves of Galaxies
Fateen Haddad, Nidal Haddad
In this article we find a four-dimensional metric for a large black hole immersed in dark matter. Specifically, we look for and find a static spherically symmetric black hole solut…
All Static Black Holes in AdS
Nidal Haddad
In this work we find the general static vacuum solution of three dimensional gravity with negative cosmological constant. Even though all solutions are locally diffeomorphic to pur…
Hawking Radiation from Small Black Holes at Strong Coupling and Large N
Nidal Haddad
In a previous work an approximate static metric was found of a test black string that stretches from the boundary to the horizon of the planar Schwarzschild-AdS_5 geometry. This is…
Black Strings Ending on Horizons
Nidal Haddad
We construct an approximate static gravitational solution of the Einstein equations, with negative cosmological constant, describing a test black string stretching from the boundar…
Self-similar critical geometries at horizon intersections and mergers
Roberto Emparan, Nidal Haddad
We study topology-changing transitions in the space of higher-dimensional black hole solutions. Kol has proposed that these are conifold-type transitions controlled by self-similar…
Black Brane Viscosity and the Gregory-Laflamme Instability
Joan Camps, Roberto Emparan, Nidal Haddad
We study long wavelength perturbations of neutral black p-branes in asymptotically flat space and show that, as anticipated in the blackfold approach, solutions of the relativistic…