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Magnification as a Tool in Weak Lensing
Alberto Vallinotto, Scott Dodelson, Pengjie Zhang
Weak lensing surveys exploit measurements of galaxy ellipticities. These measurements are subject to errors which degrade the cosmological information that can be extracted from th…
Re-capturing cosmic information
Hee-Jong Seo, Masanori Sato, Scott Dodelson +2
Gravitational lensing of distant galaxies can be exploited to infer the convergence field as a function of angular position on the sky. The statistics of this field, much like that…
Constraining Dark Matter in Galactic Substructure
Eric J. Baxter, Scott Dodelson, Savvas M. Koushiappas +1
Detecting the dark matter annihilation signal from Galactic substructure, or subhalos, is an important challenge for high-energy gamma-ray experiments. In this paper we discuss det…
Primordial Gravitational Waves and Cosmology
Lawrence Krauss, Scott Dodelson, Stephan Meyer
The observation of primordial gravitational waves could provide a new and unique window on the earliest moments in the history of the universe, and on possible new physics at energ…
Will Multiple Probes of Dark Energy find Modified Gravity?
Charles Shapiro, Scott Dodelson, Ben Hoyle +2
One of the most pressing issues in cosmology is whether general relativity (GR) plus a dark sector is the underlying physical theory or whether a modified gravity model is needed.…
Cross-Correlating Probes of Primordial Gravitational Waves
Scott Dodelson
One of the most promising ways of detecting primordial gravitational waves generated during inflation is to observe B-modes of polarization, generated by Thomson scattering after r…