2k citations · 34.3k across the 249 of their papers we have counts for
8 papers · 2 filters
Moving mesh cosmology: properties of neutral hydrogen in absorption
Simeon Bird, Mark Vogelsberger, Debora Sijacki +3
We examine the distribution of neutral hydrogen in cosmological simulations carried out with the new moving-mesh code AREPO and compare it with the corresponding GADGET simulations…
A Hydrodynamical Approach to CMB mu-distortions
Enrico Pajer, Matias Zaldarriaga
Spectral distortion of the cosmic microwave background provides a unique opportunity to probe primordial perturbations on very small scales by performing large-scale measurements.…
Going beyond the Kaiser redshift-space distortion formula: a full general relativistic account of the effects and their detectability in galaxy clustering
Jaiyul Yoo, Nico Hamaus, Uros Seljak +1
Kaiser redshift-space distortion formula describes well the clustering of galaxies in redshift surveys on small scales, but there are numerous additional terms that arise on large…
A Note on the Consistency Condition of Primordial Fluctuations
Leonardo Senatore, Matias Zaldarriaga
We show that the squeezed limit of (N+1)-point functions of primordial correlation functions in which one of the modes has a very small wavenumber can be inferred from the spatial…
Towards an Optimal Reconstruction of Baryon Oscillations
Svetlin Tassev, Matias Zaldarriaga
The Baryon Acoustic Oscillations (BAO) in the large-scale structure of the universe leave a distinct peak in the two-point correlation function of the matter distribution. That aco…
Estimating CDM Particle Trajectories in the Mildly Non-Linear Regime of Structure Formation. Implications for the Density Field in Real and Redshift Space
Svetlin Tassev, Matias Zaldarriaga
We obtain approximations for the CDM particle trajectories starting from Lagrangian Perturbation Theory. These estimates for the CDM trajectories result in approximations for the d…
The Shift of the Baryon Acoustic Oscillation Scale: A Simple Physical Picture
Blake D. Sherwin, Matias Zaldarriaga
A shift of the baryon acoustic oscillation (BAO) scale to smaller values than predicted by linear theory was observed in simulations. In this paper, we try to provide an intuitive…
A New Window on Primordial non-Gaussianity
Enrico Pajer, Matias Zaldarriaga
We know very little about primordial curvature perturbations on scales smaller than about a Mpc. Measurements of the mu-type distortion of the CMB spectrum provide the unique oppor…