Beyond Two Dark Energy Parameters (2007)
Sarkar, Devdeep, Sullivan, Scott, Joudaki, Shahab, Amblard, Alexandre, Holz, Daniel E., Cooray, Asantha
Our ignorance of the dark energy is generally described by a two-parameter equation of state. In these approaches a particular {\it ad hoc} functional form is assumed, and only two independent...
Narrowing Constraints with Type Ia Supernovae: Converging on a Cosmological Constant (2007)
Sullivan, Scott, Cooray, Asantha, Holz, Daniel E.
We apply a parameterization-independent approach to fitting the dark energy equation-of-state (EOS). Utilizing the latest type Ia supernova data, combined with results from the cosmic microwave...
Flow transitions in two-dimensional foams (2006)
Gilbreth, Christopher, Sullivan, Scott, Dennin, Michael
For sufficiently slow rates of strain, flowing foam can exhibit inhomogeneous flows. The nature of these flows is an area of active study in both two-dimensional model foams and three dimensional...