Calibrating CHIME, A New Radio Interferometer to Probe Dark Energy

Abstract

The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a transit interferometer currently being built at the Dominion Radio Astrophysical Observatory (DRAO) in Penticton, BC, Canada. We will use CHIME to map neutral hydrogen in the frequency range 400 -- 800\,MHz over half of the sky, producing a measurement of baryon acoustic oscillations (BAO) at redshifts between 0.8 -- 2.5 to probe dark energy. We have deployed a pathfinder version of CHIME that will yield constraints on the BAO power spectrum and provide a test-bed for our calibration scheme. I will discuss the CHIME calibration requirements and describe instrumentation we are developing to meet these requirements.

References in corpus (11)

• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• The ATNF Pulsar Catalogue
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 10 and 11 galaxy samples
• The WiggleZ Dark Energy Survey: mapping the distance-redshift relation with baryon acoustic oscillations
• Baryon Acoustic Oscillations in the Ly-α forest of BOSS quasars
• Measurement of 21 cm brightness fluctuations at z ~ 0.8 in cross-correlation
• Measurement of Baryon Acoustic Oscillations in the Lyman-alpha Forest Fluctuations in BOSS Data Release 9
• Determination of z~0.8 neutral hydrogen fluctuations using the 21 cm intensity mapping auto-correlation
• All-Sky Interferometry with Spherical Harmonic Transit Telescopes
• A Radio-Frequency-over-Fiber link for large-array radio astronomy applications
• Redundancy Calibration of Phased Array Stations

Cited by in corpus (42)

• LSST: from Science Drivers to Reference Design and Anticipated Data Products
• A bright millisecond-duration radio burst from a Galactic magnetar
• The CHIME Fast Radio Burst Project: System Overview
• Late-time cosmology with 21cm intensity mapping experiments
• Data Analysis for Precision 21 cm Cosmology
• Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects
• Observations of Fast Radio Bursts at Frequencies down to 400 Megahertz
• Calibration Requirements for Detecting the 21 cm Epoch of Reionization Power Spectrum and Implications for the SKA
• The Impact of Modeling Errors on Interferometer Calibration for 21 cm Power Spectra
• Fundamental Limitations on the Calibration of Redundant 21 cm Cosmology Instruments and Implications for HERA and the SKA
• Detecting the Stimulated Decay of Axions at Radio Frequencies
• High-redshift post-reionization cosmology with 21cm intensity mapping
• The Hydrogen Epoch of Reionization Array Dish I: Beam Pattern Measurements and Science Implications
• Forecasts on Primordial non-Gaussianity from 21 cm Intensity Mapping experiments
• Spherical Harmonic Analyses of Intensity Mapping Power Spectra
• A Fast Radio Burst Occurs Every Second throughout the Observable Universe
• A Synoptic VLBI Technique for Localizing Non-Repeating Fast Radio Bursts with CHIME/FRB
• A fast radio burst localized at detection to an edge-on galaxy using very-long-baseline interferometry
• Anisotropic halo assembly bias and redshift-space distortions
• Limits on the ultra-bright Fast Radio Burst population from the CHIME Pathfinder
• Enhanced Rates of Fast Radio Bursts from Galaxy Clusters
• Prospects for measuring dark energy with 21 cm intensity mapping experiments
• Spectral Kurtosis Based RFI Mitigation for CHIME
• Beyond $\Lambda$CDM with HI intensity mapping: robustness of cosmological constraints in the presence of astrophysics
• Detecting fast radio bursts at decametric wavelengths
• A Semi-blind PCA-based Foreground Subtraction Method for 21 cm Intensity Mapping
• Dual Polarization Measurements of MWA Beampatterns at 137 MHz
• HIR4: Cosmological signatures imprinted on the cross correlation between 21-cm map and galaxy clustering
• Cross-Correlation Forecast of CSST Spectroscopic Galaxy and MeerKAT Neutral Hydrogen Intensity Mapping Surveys
• FRB$-$SRB$-$XRB: Geometric and Relativistic Beaming Constraints of Fast Radio Bursts from the Galactic Magnetar SGR J1935+2154
• Unveiling the Universe with Emerging Cosmological Probes
• Toward a direct measurement of the cosmic acceleration: The pilot observation of H I 21cm absorption line at FAST
• Prospects for cosmological research with the FAST array: 21-cm intensity mapping survey observation strategies
• A Polarization Pipeline for Fast Radio Bursts Detected by CHIME/FRB
• Reconstructing HI power spectrum with minimal parameters using the dark matter distribution beyond halos
• AlgoSCR: An algorithm for Solar Contamination Removal from radio interferometric data
• Forecasting Galaxy Cluster HI Mass Recovery with CHIME at Redshifts z = 1 and 2 via the IllustrisTNG Simulations
• An Overview of CHIME, the Canadian Hydrogen Intensity Mapping Experiment
• Measurements of the diffuse Galactic synchrotron spectral index and curvature from MeerKLASS pilot data
• Indicator Functions: Distilling the Information from Gaussian Random Fields
• Estimating constraints on cosmological parameters via the canonical and the differential redshift drift with SKA HI 21-cm observations
• Simulating a full-sky high resolution Galactic synchrotron spectral index map using neural networks