437 citations · 703 across the 4 of their papers we have counts for
4 papers
Stellar Black Holes and the Origin of Cosmic Acceleration
Chanda Prescod-Weinstein, Niayesh Afshordi, Michael L. Balogh
The discovery of cosmic acceleration has presented a unique challenge for cosmologists. As observational cosmology forges ahead, theorists have struggled to make sense of a standar…
Non-Gaussianity as a Probe of the Physics of the Primordial Universe and the Astrophysics of the Low Redshift Universe
E. Komatsu, N. Afshordi, N. Bartolo +58
A new and powerful probe of the origin and evolution of structures in the Universe has emerged and been actively developed over the last decade. In the coming decade, non-Gaussiani…
Extended Limber Approximation
Marilena LoVerde, Niayesh Afshordi
We develop a systematic derivation for the Limber approximation to the angular cross-power spectrum of two random fields, as a series expansion in 1/(\ell+1/2). This extended Limbe…
Primordial non-gaussianity, statistics of collapsed objects, and the Integrated Sachs-Wolfe effect
Niayesh Afshordi, Andrew J. Tolley
Any hint of non-gaussianity in the cosmological initial conditions will provide us with a unique window into the physics of early universe. We show that the impact of a small local…