2 citations · 2 across the 1 of their papers we have counts for
3 papers
astro-ph2004★ 2 cited
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…
astro-ph2001
Cosmological Parameters and Quintessence From Radio Galaxies
Ruth A. Daly, Erick J. Guerra
FRIIb radio galaxies provide a tool to determine the coordinate distance to sources out to redshifts of two. The coordinate distance depends on the present values of global cosmolo…
astro-ph1998
Global Cosmological Parameters Measured Using Classical Double Radio Sources
Ruth A. Daly, E. J. Guerra, Lin Wan
Fourteen classical double radio galaxies with redshifts between zero and two were used to determine the cosmological parameters , , and , where these are the normali…