We combine our recent measurements of the velocity dispersion and the surface brightness profile of the lens galaxy D in the system MG2016+112 (z = 1.004) with constraints from gravitational lensing to study its internal mass distribution. We find that: i) dark matter accounts for >50% of the total mass within the Einstein radius (99% CL), whereas ∼75% is the more likely contribution. In partic...

Using the effective potential, the large-N nonlinear O(N) sigma model with the curvature coupled term is studied on S 2 × R 1. We show that, for the conformally coupled case, the dynamical mass generation of the model in the strong-coupled regime on R 3 takes place for any finite scalar curvature (or radius of the S 2). If the coupling constant is larger than that of the conformally coupled cas...

In this paper we present exactly solved extended quintessence models; furthermore, through a dynamical effective Q-cosmological ”constant”, we recover some of the Λ decaying cases found in the literature. Finally we introduce a sort of complementarity between the Q-dominated or Λdominated expansions of the Universe. e-mail addresses: [email protected] [email protected]

Nomenclature CR,CI = empirical constants C = speed of sound, m/s D = Van-Driest damping function E = specific total energy f = frequency, Hz G = level-set variable hf,i = heat of formation of species i at reference condition k = turbulent kinetic energy lF = laminar flame thickness, m l = inner-layer flame thickness, m n = unit vector normal to flame front p = pressure Pr = Prandtl number q = r...

...Abstract. The total energy E of a star as a function of its angular momentum J and mass M in the Newtonian theory: E = E(J,M) [in general relativity, the gravitational mass M of a star as a function of its angular momentum J and rest mass m, M = M(J,m)], is used to determine the remaining parameters (angular velocity, equatorial radius, chemical potential, etc.) in the case of rigid rotation...

We show that the inclusion of an axion-like effective potential in the construction of a selfgravitating system made of scalar fields leads to a decrease on its compactness when the value of the self-interaction coupling constant is increased. By including the current values for the axion mass m and decay constant fa, we have computed the mass and the radius for self-gravitating systems made of...

The effect of an external electric field, E, on the electron attachment rate constant, ke, of SFg was studied by a pulsed-conductivity technique in liquid ethane and propane at temperatures ranging from 133—176 K and 156—216 K, respectively. At constant temperature, ke was independent of E at fields less than Ec, the critical field above which the mobility becomes fielddependent, but at E> Ec, ...