Constraining warm dark matter power spectrum using the cross-correlation of HI 21 cm signal and the Lyman-$\alpha$ forest

Abstract

We have considered the prospects for measuring the cross Warm Dark Matter (WDM) power spectrum of the redshifted HI 21-cm signal and the Lyman-$\alpha$ forest and thereby constraining WDM mass using observations with upcoming radio-interferometers - the Ooty Wide Field Array (OWFA) and SKA1-mid, and a spectroscopic survey of the quasars. We have considered a quasar survey with a mean observed quasar number density of ${\bar{\mathrm{n}}}_{\mathrm{Q}}=48$ deg${}^{-2}$ over a collecting area of 14455 deg${}^2$, and a mean spectroscopic SNR = 5. Our analysis with OWFA shows that it is possible to measure the WDM power spectrum in several $k$-bins at $k<0.4$ Mpc${}^{-1}$ with $\mathrm{SNR}>5$ using an observation of 200 hours each in 100 different fields-of-view for $m_{\mathrm{WDM}}=0.25$ keV. Considering the possibility of the joint measurement of the parameters, the warm dark matter density parameter ${\Omega }_{\mathrm{WDM}}$, and the dark energy density parameter ${\Omega }_{\Lambda 0}$, we find that the relative error on the $1-\sigma$ measurement of the parameter ${\Omega }_{\mathrm{WDM}}$ is $\sim 0.8$ for a fiducial $m_{\mathrm{WDM}}=0.25$ keV. We further find that it is possible to have a measurement of the suppression of power from the Cold Dark Matter (CDM) power spectrum at a confidence level of $\sim 7.2-\sigma$ and $\sim 2.7-\sigma$ in two different $k$-bins over the $k$-range $0.1\le k\le 3.13$ Mpc${}^{-1}$ for $m_{\mathrm{WDM}}=0.15$ keV. Considering the analysis with SKA1-mid, we find that for a fiducial $m_{\mathrm{WDM}}=0.25$ keV, the suppression in the cross power spectrum can be measured at $\sim 10-\sigma$ around $k\sim 0.2{\mathrm{Mpc}}^{-1}$ for a total observing time of $20000$ hrs distributed uniformly over $50$ independent pointings where the available $k$-range is binned as $\Delta k=k/5$.

arXiv commentto be submitted at JCAP

References in corpus (68)

• A Universal Density Profile from Hierarchical Clustering
• Dark Matter Substructure in Galactic Halos
• Where are the missing galactic satellites?
• Baryonic Features in the Matter Transfer Function
• Sterile Neutrinos as Dark Matter
• In the Beginning: The First Sources of Light and the Reionization of the Universe
• Halo Formation in Warm Dark Matter Models
• Constraining Warm Dark Matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-alpha forest
• Equation of State of the Photoionized Intergalactic Medium
• The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
• Formation and evolution of galaxy dark matter halos and their substructure
• Towards a Precise Measurement of Matter Clustering: Lyman-alpha Forest Data at Redshifts 2-4
• Recovery of the Power Spectrum of Mass Fluctuations from Observations of the Lyman-alpha Forest
• Quantifying the heart of darkness with GHALO - a multi-billion particle simulation of our galactic halo
• Can sterile neutrinos be the dark matter?
• The Reionization of the Universe by the First Stars and Quasars
• Column density distribution and cosmological mass density of neutral gas: Sloan Digital Sky Survey-III Data Release 9
• On the (Non)Evolution of HI Disks over Cosmic Time
• The Power Spectrum of Mass Fluctuations Measured from the Lyman-alpha Forest at Redshift z=2.5
• Damped Lyman Alpha Systems in Galaxy Formation Simulations
• The one-dimensional Ly-alpha forest power spectrum from BOSS
• The CMBR fluctuations from HI perturbations prior to reionization
• Realistic sterile neutrino dark matter with keV mass does not contradict cosmological bounds
• Possibility of Precise Measurement of the Cosmological Power Spectrum With a Dedicated 21cm Survey After Reionization
• Clues from nearby galaxies to a better theory of cosmic evolution
• On using visibility correlations to probe the HI distribution from the dark ages to the present epoch I: Formalism and the expected signal
• Photoionization, Numerical Resolution, and Galaxy Formation
• Dark energy and curvature from a future baryonic acoustic oscillation survey using the Lyman-alpha forest
• An improved measurement of the flux distribution of the Ly-alpha forest in QSO absorption spectra: the effect of continuum fitting, metal contamination and noise properties
• Constraints on decaying Dark Matter from XMM-Newton observations of M31
• Characterizing Foreground for redshifted 21-cm radiation: 150 MHz GMRT observations
• Using HI to probe large scale structures at z ~ 3
• HI Fluctuations at Large Redshifts: I--Visibility correlation
• HI as a Probe of the Large Scale Structure in the Post-Reionization Universe
• Testing the Warm Dark Matter paradigm with large-scale structures
• Harrison--Zeldovich spectrum from conformal invariance
• Constraining the reionization history with QSO absorption spectra
• Measuring the Cosmological Geometry from the Lyman Alpha Forest along Parallel Lines of Sight
• Modeling the neutral hydrogen distribution in the post-reionization Universe: intensity mapping
• Improved foreground removal in GMRT 610 MHz observations towards redshifted 21-cm tomography
• The effect of massive neutrinos on the matter power spectrum
• Weighing neutrinos with cosmic neutral hydrogen
• Precision Cosmology from the Lyman-alpha Forest: Power Spectrum and Bispectrum
• A combined analysis of 3D Weak Lensing, Lyman-alpha forest and WMAP year three data
• Modelling the post-reionization neutral Hydrogen (\HI) bias
• Estimation of Cosmological Parameters from HI Observations of Post-reionization Epoch
• Probing Primordial Magnetic Fields Using Ly-alpha Clouds
• Constraining large scale HI bias using redshifted 21-cm signal from the post-reionization epoch
• The bispectrum of the Lyman-alpha forest at z~2-2.4 from a Large sample of UVES QSO Absorption Spectra (LUQAS)
• Redshift space 21 cm power spectra from reionization
• The ESO UVES Advanced Data Products Quasar Sample - I. Dataset and New N_HI Measurements of Damped Absorbers
• Galactic Signatures of Decaying Dark Matter
• The cross-correlation between 21cm intensity mapping maps and the Lyman-alpha forest in the post-reionization era
• Prospects for detecting the 326.5 MHz redshifted 21 cm HI signal with the Ooty Radio Telescope (ORT)
• The Ooty Wide Field Array
• A High Speed Networked Signal Processing Platform for Multi-element Radio Telescopes
• Warm dark matter at small scales: peculiar velocities and phase space density
• On using large scale correlation of the Ly-$\alpha$ forest and redshifted 21-cm signal to probe HI distribution during the post reionization era
• Cross-correlation of the HI 21-cm Signal and Lyman-alpha Forest: A Probe Of Cosmology
• Simulated foreground predictions for HI at z = 3.35 with the Ooty Wide Field Array: I. Instrument and the foregrounds
• The redshifted HI 21 cm signal from the post-reionization epoch: Cross-correlations with other cosmological probes
• Predictions for measuring the cross power spectrum of the HI 21-cm signal and the Lyman-$\alpha$ forest using OWFA
• Constraining Neutrino mass using the large scale HI distribution in the Post-reionization epoch
• Simulating the z = 3.35 HI 21-cm visibility signal for the Ooty Wide Field Array(OWFA)
• Hubble Flow Broadening of the Lyman-alpha Forest and its Implications
• A Spherical Harmonic Analysis of the Ooty Wide Field Array (OWFA) Visibility Signal
• Prospects of detecting HI using redshifted 21 cm radiation at z ~ 3
• Prowess - a software model for the Ooty Wide Field Array

Cited by in corpus (4)

• Constraining dark energy using the cross correlations of weak lensing with post-reionization probes of neutral hydrogen
• Probing Quintessence using BAO imprint on the cross-correlation of weak lensing and post-reionization HI 21 cm signal
• Reionization relics in the cross-correlation between the Ly$\alpha$ forest and 21 cm intensity mapping in the post-reionization era
• Probing dark energy using anisotropies in the clustering of post-EoR HI distribution