On the cross-correlation of sub-mm sources and optically-selected galaxies

Abstract

Bright sub-mm galaxies are expected to arise in massive highly-biased haloes, and hence exhibit strong clustering. We argue that a valuable tool for measuring these clustering properties is the cross-correlation of sub-mm galaxies with faint optically-selected sources. We analyze populations of SCUBA-detected and optical galaxies in the GOODS-N survey area. Using optical/IR photometric-redshift information, we search for correlations induced by two separate effects: (1) cosmic magnification of background sub-mm sources by foreground dark matter haloes traced by optical galaxies at lower redshifts; and (2) galaxy clustering due to sub-mm and optical sources tracing the same population of haloes where their redshift distributions overlap. Regarding cosmic magnification, we find no detectable correlation. Our null result is consistent with a theoretical model for the cosmic magnification, and we show that a dramatic increase in the number of sub-mm sources will be required to measure the effect reliably. Regarding clustering, we find evidence at the 3.5-sigma level for a cross-correlation between sub-mm and optical galaxies analyzed in identical photometric redshift slices. The data hint that the sub-mm sources have an enhanced bias parameter compared to the optically-selected population (with a significance of 2-sigma). The next generation of deep sub-mm surveys can potentially perform an accurate measurement of each of these cross-correlations, adding a new set of diagnostics for understanding the development of massive structure in the Universe.

arXiv comment10 pages, 10 figures, accepted for publication by MNRAS

References in corpus (28)

• Weak Gravitational Lensing
• Baryonic Features in the Matter Transfer Function
• Large-Scale Structure of the Universe and Cosmological Perturbation Theory
• The Great Observatories Origins Deep Survey: Initial Results From Optical and Near-Infrared Imaging
• A Redshift Survey of the Submillimeter Galaxy Population
• Submillimeter Galaxies
• SCUBA: A common-user submillimetre camera operating on the James Clerk Maxwell Telescope
• Reconstructing the linear power spectrum of cosmological mass fluctuations
• Deep radio imaging of the SCUBA 8-mJy survey fields: sub-mm source identifications and redshift distribution
• The SCUBA 8-mJy survey - I: Sub-millimetre maps, sources and number counts
• A Deep, Wide Field, Optical, and Near Infrared Catalog of a Large Area around the Hubble Deep Field North
• Clustering of Submillimeter-Selected Galaxies
• Analysis of Systematic Effects and Statistical Uncertainties in Angular Clustering of Galaxies from Early SDSS Data
• Detection of Cosmic Magnification with the Sloan Digital Sky Survey
• The HDF-North SCUBA Super-map I: Submillimetre maps, sources and number counts
• The 2dF Galaxy Redshift Survey: The amplitudes of fluctuations in the 2dFGRS and the CMB, and implications for galaxy biasing
• The Hubble Deep Field North SCUBA Super-map III - Optical and near-infrared properties of submillimetre galaxies
• Photometric Redshifts for Galaxies in the GOODS Southern Field
• An 850-micron SCUBA map of the Groth Strip and reliable source extraction
• Submillimetre sources in rich cluster fields - source counts, redshift estimates, and cooling flow limits
• The SCUBA HAlf Degree Extragalactic Survey (SHADES) -- I. Survey motivation, design and data processing
• The coincidence and angular clustering of Chandra and SCUBA sources
• Quantifying angular clustering in wide-area radio surveys
• Damped Lyman alpha systems and disk galaxies: number density, column density distribution and gas density
• The HDF-North SCUBA Super-map II: Multi-wavelength properties
• Mock Catalogs for the DEEP2 redshift survey
• A SCUBA Scanmap of the HDF: Measuring the bright end of the sub-mm source counts
• The extragalactic sub-mm population: predictions for the SCUBA Half-Degree Extragalactic Survey (SHADES)

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• Complete Treatment of Galaxy Two-Point Statistics: Gravitational Lensing Effects and Redshift-Space Distortions
• Cosmological cross-correlations and nearest neighbor distributions
• HerMES: detection of cosmic magnification of sub-mm galaxies using angular cross-correlation
• Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing
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• Does Galactic Magnetic Field Disturb the Correlation of the Highest Energy Cosmic Rays with their Sources?
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• Blending bias impacts the host halo masses derived from a cross-correlation analysis of bright sub-millimetre galaxies
• The soft X-ray Cluster-AGN spatial cross-correlation function in the ROSAT-NEP survey
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• Constraints on galaxy formation from the cosmic-far-infrared-background\,$-$\,optical-imaging cross-correlation using \textit{Herschel} and UNIONS
• Improved two-point correlation function estimates using glass-like distributions as a reference sample
• Systematic Survey of the Correlation between Northern HECR Events and SDSS Galaxies
• Testing the Large-Scale Environments of Cool-core and Noncool-core Clusters with Clustering Bias
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• Use of spatial cross correlation function to study formation mechanism of massive elliptical galaxies
• Bulk-Surface Event Discrimination in Point Contact Germanium Detectors at Near-Threshold Energies with Shape-Matching Pulse-Shape Methods
• A novel analysis of contamination in Lyman-break galaxy samples at $\mathbf{z}\sim 6-8$: spatial correlation with intermediate-redshift galaxies at $\mathbf{z}\sim 1.3-2$