Constraints on Running of Non-Gaussianity from Large Scale Structure Probes

Abstract

In this letter we present constraints on the scale-dependent "local" type primordial non-Gaussianity, which is described by non-Gaussianity's spectral index $n_{\mathrm{NG}}$, from the NRAO VLA Sky Survey and the quasar catalog of the Sloan Digital Sky Survey (SDSS) Data Release 6, together with the SDSS Data Release 12 photo-z sample. Here, we use the auto-correlation analyses of these three probes and their cross-correlation analyses with the cosmic microwave background (CMB) temperature map, and obtain the tight constraint on the spectral index: $n_{\mathrm{NG}}=0.2_{-1.0}^{+0.7}$ ($1\sigma$ C.L.), which shows the first competitive constraint on the running of non-Gaussianity from current large-scale structure clustering data. Furthermore, we also perform the forecast calculations and improve the limit of $n_{\mathrm{NG}}$ using the future Euclid mission, and obtain the standard deviation at 68\% confidence level: $\Delta n_{\mathrm{NG}}=1.74$ when considering the fiducial value $f_{\mathrm{NL}}=3$, which provides the complementary constraining power to those from the CMB bispectrum information.

arXiv comment6 pages, 2 figures. Accepted by MNRAS Letters

References in corpus (45)

• Efficient Computation of CMB anisotropies in closed FRW models
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• Large scale bias and the peak background split
• Large-Scale Structure of the Universe and Cosmological Perturbation Theory
• Euclid Definition Study Report
• The imprints of primordial non-gaussianities on large-scale structure: scale dependent bias and abundance of virialized objects
• How Many Galaxies Fit in a Halo? Constraints on Galaxy Formation Efficiency from Spatial Clustering
• Planck 2015 results. XVII. Constraints on primordial non-Gaussianity
• Constraints on local primordial non-Gaussianity from large scale structure
• The effect of primordial non-Gaussianity on halo bias
• Efficient Photometric Selection of Quasars from the Sloan Digital Sky Survey: II. ~1,000,000 Quasars from Data Release Six
• New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects
• Correlation of CMB with large-scale structure: I. ISW Tomography and Cosmological Implications
• Effects of Scale-Dependent Non-Gaussianity on Cosmological Structures
• Fast estimation of polarization power spectra using correlation functions
• Running Non-Gaussianities in DBI Inflation
• Primordial non-gaussianity, statistics of collapsed objects, and the Integrated Sachs-Wolfe effect
• Photometric redshifts for the SDSS Data Release 12
• Large-scale Bias and Efficient Generation of Initial Conditions for Non-Local Primordial Non-Gaussianity
• Constraining primordial non-Gaussianity with future galaxy surveys
• Large-scale non-Gaussian mass function and halo bias: tests on N-body simulations
• A Maximum Likelihood Analysis of the Low CMB Multipoles from WMAP
• Primordial non-Gaussianity: large-scale structure signature in the perturbative bias model
• Constraining Running Non-Gaussianity
• Scale-dependent non-Gaussianity probes inflationary physics
• Rapidly-Varying Speed of Sound, Scale Invariance and Non-Gaussian Signatures
• Scale dependence of local f_NL
• Constraints on primordial non-Gaussianity from 800,000 photometric quasars
• A generalized local ansatz and its effect on halo bias
• Non-Gaussian Halo Bias Re-examined: Mass-dependent Amplitude from the Peak-Background Split and Thresholding
• Error analysis of quadratic power spectrum estimates for CMB polarization: sampling covariance
• Primordial Non-Gaussianity and the NRAO VLA Sky Survey
• Constraining Primordial Non-Gaussianity with High-Redshift Probes
• Accurate Predictions for the Scale-Dependent Galaxy Bias from Primordial Non-Gaussianity
• Constraints on Primordial Non-Gaussianity from Large Scale Structure Probes
• Constraining primordial non-Gaussianity using two galaxy surveys and CMB lensing
• Testing the Running of non-Gaussianity through the CMB mu-distortion and the Halo Bias
• Strongly Scale-dependent Non-Gaussianity
• First constraints on the running of non-Gaussianity
• Strongly scale-dependent polyspectra from curvaton self-interactions
• Search for primordial non-Gaussianity in the quasars of SDSS-III BOSS DR9
• Clustering analysis of high-redshift Luminous Red Galaxies in Stripe 82
• Tomographic imaging of the Fermi-LAT gamma-ray sky through cross-correlations: A wider and deeper look
• Constraining Scale-Dependent Non-Gaussianity with Future Large-Scale Structure and the CMB
• CMB constraints on running non-Gaussianity

Cited by in corpus (6)

• Building a Boostless Bootstrap for the Bispectrum
• What Can We Learn by Combining the Skew Spectrum and the Power Spectrum?
• Quantifying the redshift space distortion of the bispectrum III : Detection prospects of the multipole moments
• Removing Interlopers From Intensity Mapping Probes Of Primordial Non-Gaussianity
• Constraints on primordial non-Gaussianity using multitracer technique for skew spectrum
• Generalized local ansatz for scale-dependent primordial non-Gaussianities and future galaxy surveys