497 citations · 5.6k across the 71 of their papers we have counts for
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Investigating dark energy experiments with principal components
Robert G. Crittenden, Levon Pogosian, Gong-Bo Zhao
We use a principal component approach to contrast different kinds of probes of dark energy, and to emphasize how an array of probes can work together to constrain an arbitrary equa…
Non-Gaussianity from Cosmic Magnetic Fields
Iain Brown, Robert Crittenden
Magnetic fields in the early universe could have played an important role in sourcing cosmological perturbations. While not the dominant source, even a small contribution might be…
Tracking Dark Energy with the ISW effect: short and long-term predictions
Levon Pogosian, Pier Stefano Corasaniti, Christian Stephan-Otto +2
We present an analysis of the constraining power of future measurements of the Integrated Sachs-Wolfe (ISW) effect on models of the equation of state of dark energy as a function o…