A Robust Measure of Cosmic Structure beyond the Power-Spectrum: Cosmic Filaments and the Temperature of Dark Matter
arXiv:1211.5213 · doi:10.1088/0004-637X/762/2/115
Abstract
We discover that the mass of dark matter particles mDM is imprinted in phase-correlations of the cosmic density field more significantly than in the 2-point correlation. In particular, phase-correlations trace mDM out to scales about five times larger than the 2-point correlation. This result relies on a new estimator l(r) of pure phase-information in Fourier space, which can be interpreted as a parameter-free and scale-invariant tracer of filament-like structure. Based on simulated density fields we show how mDM can, in principle, be measured using l(r), given a suitably reconstructed density field.
15 pages, 11 figures
References in corpus (4)
- Improved Dark Energy Constraints from ~100 New CfA Supernova Type Ia Light Curves
- Measuring the Baryon Acoustic Oscillation scale using the SDSS and 2dFGRS
- New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects
- The Effect of Large-Scale Structure on the SDSS Galaxy Three-Point Correlation Function
Cited by in corpus (14)
- Cosmology Without Window Functions: Cubic Estimators for the Galaxy Bispectrum
- Towards optimal cosmological parameter recovery from compressed bispectrum statistics
- Wavelet Moments for Cosmological Parameter Estimation
- Cosmology with Phase Statistics: Parameter Forecasts and Detectability of BAO
- Revisiting the dynamics of interacting vector-like dark energy
- Modal compression of the redshift-space galaxy bispectrum
- Towards cosmological constraints from the compressed modal bispectrum: a robust comparison of real-space bispectrum estimators
- Impact of survey geometry and super-sample covariance on future photometric galaxy surveys
- Fast generation of weak lensing maps by the inverse-Gaussianization method
- Persistent topology of the reionization bubble network. II: Evolution & Classification
- An Inventory of Bispectrum Estimators for Redshift Space Distortions
- Interference in Fuzzy Dark Matter Filaments: Idealised Models and Statistics
- Numerical investigation of non-Gaussianities in the phase and modulus of density Fourier modes
- A New Estimator for Phase Statistics