350 citations · 972 across the 12 of their papers we have counts for
4 papers · 1 filter
A Test of the Copernican Principle
R. R. Caldwell, A. Stebbins
The blackbody nature of the cosmic microwave background (CMB) radiation spectrum is used in a modern test of the Copernican Principle. The reionized universe serves as a mirror to…
Consequences of a Cosmic Scalar with Kinetic Coupling to Curvature
Scott F. Daniel, Robert R. Caldwell
The classical gravitational theory of a scalar field with a gradient coupling to the Ricci tensor is examined. This is a scalar-vector-tensor gravitational theory, but in the case…
The effects of Chern-Simons gravity on bodies orbiting the Earth
Tristan L. Smith, Adrienne L. Erickcek, Robert R. Caldwell +1
One of the possible low-energy consequences of string theory is the addition of a Chern-Simons term to the standard Einstein-Hilbert action of general relativity. It can be argued…
Constraints on a New Post-General Relativity Cosmological Parameter
Robert Caldwell, Asantha Cooray, Alessandro Melchiorri
A new cosmological variable is introduced which characterizes the degree of departure from Einstein's General Relativity (GR) with a cosmological constant. The new parameter, \varp…