214 citations · 1.5k across the 40 of their papers we have counts for
4 papers · 2 filters
Comparison of Radio Observations and Numerical Simulations of the Radio Lobes of Cygnus A
J. C. Carvalho, R. A. Daly, M. P. Mory +1
We present a comparison of radio observations of the archetypal powerful radio galaxy Cygnus A and 2-D numerical hydrodynamical simulations. We characterize some global trends in t…
Direct Constraints on the Properties and Evolution of Dark Energy
Ruth A. Daly, S. G. Djorgovski
We describe a method to derive the expansion and acceleration rates directly from the data, without the need for the specification of a theory of gravity, and without adopting an a…
Direct Determinations of the Redshift Behavior of the Pressure, Energy Density, and Equation of State of the Dark Energy and the Acceleration of the Universe
Ruth A. Daly, S. G. Djorgovski
One of the goals of current cosmological studies is the determination of the expansion and acceleration rates of the universe as functions of redshift, and the determination of the…
Direct Determination of the Kinematics of the Universe and Properties of the Dark Energy as Functions of Redshift
Ruth A. Daly, S. G. Djorgovski
Understanding of the nature of dark energy, which appears to drive the expansion of the universe, is one of the central problems of physical cosmology today. In an earlier paper [D…