The SCUBA-2 Large eXtragalactic Survey: 850um map, catalogue and the bright-end number counts of the XMM-LSS field

Abstract

We present 850um imaging of the XMM-LSS field observed for 170 hours as part of the James Clerk Maxwell Telescope SCUBA-2 Large eXtragalactic Survey (S2LXS). S2LXS XMM-LSS maps an area of 9 square degrees, reaching a moderate depth of 1-sigma ~ 4 mJy/beam. This is the largest contiguous area of extragalactic sky mapped by JCMT at 850um to date. The wide area of the S2LXS XMM-LSS survey allows us to probe the ultra-bright (S_850um > 15 mJy), yet rare submillimetre population. We present the S2LXS XMM-LSS catalogue, which comprises 40 sources detected at >5-sigma significance, with deboosted flux densities in the range of 7 mJy to 48 mJy. We robustly measure the bright-end of the 850um number counts at flux densities >7 mJy, reducing the Poisson errors compared to existing measurements. The S2LXS XMM-LSS observed number counts show the characteristic upturn at bright fluxes, expected to be motivated by local sources of submillimetre emission and high-redshift strongly lensed galaxies. We find that the observed 850um number counts are best reproduced by model predictions that include either strong lensing or source blending from a 15 arcsec beam, indicating that both may make an important contribution to the observed over-abundance of bright single dish 850um selected sources. We make the S2LXS XMM-LSS 850um map and >5-sigma catalogue presented here publicly available.

arXiv commentAccepted for publication in MNRAS

References in corpus (98)

• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• The Cosmic Evolution Survey (COSMOS) -- Overview
• Unveiling Dust-enshrouded Star Formation in the Early Universe: a Sub-mm Survey of the Hubble Deep Field
• A Deep Sub-millimeter Survey of Lensing Clusters: A New Window on Galaxy Formation and Evolution
• A Redshift Survey of the Submillimeter Galaxy Population
• The Hyper Suprime-Cam SSP Survey: Overview and Survey Design
• SCUBA: A common-user submillimetre camera operating on the James Clerk Maxwell Telescope
• The Herschel Multi-tiered Extragalactic Survey: HerMES
• The Cosmic Infrared Background: Measurements and Implications
• The Spectrum of the Extragalactic Far Infrared Background from the COBE Firas Observations
• Dusty star forming galaxies at high redshift
• SWIRE: The SIRTF Wide-area InfraRed Extragalactic Survey
• The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background: I. Limits and Detections
• The Herschel ATLAS
• SCUBA-2: The 10000 pixel bolometer camera on the James Clerk Maxwell Telescope
• High-resolution Millimeter Imaging of Submillimeter Galaxies
• An interferometric CO survey of luminous submm galaxies
• The Cosmic Infrared Background Resolved by Spitzer. Contributions of Mid-Infrared Galaxies to the Far-Infrared Background
• A survey of molecular gas in luminous sub-millimetre galaxies
• An ALMA survey of Sub-millimeter Galaxies in the Extended Chandra Deep Field South: Physical properties derived from ultraviolet-to-radio modelling
• The Detection of a Population of Submillimeter-Bright, Strongly-Lensed Galaxies
• A unified multi-wavelength model of galaxy formation
• The SCUBA HAlf Degree Extragalactic Survey (SHADES) -- II. Submillimetre maps, catalogue and number counts
• The X-ray Spectral Properties of SCUBA Galaxies
• Mid-Infrared Spectral Diagnosis of Submillimeter Galaxies
• The LABOCA Survey of the Extended Chandra Deep Field South
• Two bright submillimeter galaxies in a z=4.05 proto-cluster in GOODS-North, and accurate radio-infrared photometric redshifts
• The VISTA Deep Extragalactic Observations (VIDEO) Survey
• An ALMA Survey of Submillimetre Galaxies in the Extended Chandra Deep Field South: The Far-Infrared Properties of SMGs
• The 24 Micron Source Counts in Deep Spitzer Surveys
• Extragalactic millimeter-wave sources in South Pole Telescope survey data: source counts, catalog, and statistics for an 87 square-degree field
• The SCUBA-2 Cosmology Legacy Survey: 850um maps, catalogues and number counts
• An ALMA Survey of Submillimeter Galaxies in the Extended Chandra Deep Field South: The Redshift Distribution and Evolution of Submillimeter Galaxies
• SCUBA-2: iterative map-making with the Sub-Millimetre User Reduction Facility
• The SCUBA HAlf Degree Extragalactic Survey (SHADES) - III. Identification of radio and mid-infrared counterparts to submillimetre galaxies
• Tracing the molecular gas in distant submillimetre galaxies via CO(1-0) imaging with the EVLA
• The contribution of starbursts and normal galaxies to infrared luminosity functions at z < 2
• The Large APEX Bolometer Camera LABOCA
• A Herschel view of the far-infrared properties of submillimetre galaxies
• SCUBA-2: on-sky calibration using submillimetre standard sources
• Molecular Gas in the z=2.8 Submillimeter Galaxy SMM 02399-0136
• Shark: introducing an open source, free and flexible semi-analytic model of galaxy formation
• The Rest-frame Optical Spectra of SCUBA Galaxies
• A unified empirical model for infrared galaxy counts based on observed physical evolution of distant galaxies
• The LABOCA survey of the Extended Chandra Deep Field South: A photometric redshift survey of submillimetre galaxies
• The Canada-UK Deep Submillimetre Survey: The Survey of the 14-hour field
• AzTEC Millimetre Survey of the COSMOS Field: I. Data Reduction and Source Catalogue
• High-redshift star formation in the ALMA era
• The Stellar Mass Content of Submillimeter-Selected Galaxies
• Compact starbursts in z~3-6 submillimeter galaxies revealed by ALMA
• An extreme proto-cluster of luminous dusty starbursts in the early Universe
• Optical colours and spectral indices of $z=0.1$ EAGLE galaxies with 3D dust radiative transfer code SKIRT
• The impact of clustering and angular resolution on far-infrared and millimeter continuum observations
• The SCUBA-2 Cosmology Legacy Survey: ALMA resolves the bright-end of the sub-millimeter number counts
• Characterisation of SCUBA-2 450um and 850um-selected Galaxies in the COSMOS Field
• The Herschel Multi-Tiered Extragalactic Survey: Source Extraction and Cross-Identifications in Confusion-Dominated SPIRE Images
• The XMM-LSS survey. Survey design and first results
• HerMES: Candidate Gravitationally Lensed Galaxies and Lensing Statistics at Submillimeter Wavelengths
• The stellar masses and specific star-formation rates of submillimetre galaxies
• The Spitzer Extragalactic Representative Volume Survey (SERVS): survey definition and goals
• The Hubble Deep Field North SCUBA Super-map III - Optical and near-infrared properties of submillimetre galaxies
• The AzTEC mm-Wavelength Camera
• Extragalactic millimeter-wave point source catalog, number counts and statistics from 771 square degrees of the SPT-SZ Survey
• The Herschel-ATLAS: a sample of 500μm-selected lensed galaxies over 600 square degrees
• A hybrid model for the evolution of galaxies and Active Galactic Nuclei in the infrared
• An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: Source catalogue and properties
• An ALMA Survey of Submillimeter Galaxies in the Extended Chandra Deep Field South: The AGN Fraction and X-ray Properties of Submillimeter Galaxies
• The space density of luminous dusty star-forming galaxies at $z>4$: SCUBA-2 and LABOCA imaging of ultrared galaxies from $Herschel$-ATLAS
• The Herschel Multi-Tiered Extragalactic Survey: SPIRE-mm Photometric Redshifts
• The CFHT Large Area U-band Deep Survey (CLAUDS)
• A maximum-likelihood method for improving faint source flux and color estimates
• The East Asian Observatory SCUBA--2 survey of the COSMOS field: unveiling 1147 bright sub-millimeter sources across 2.6 square degrees
• The SCUBA-2 Cosmology Legacy Survey: the nature of bright submm galaxies from 2 deg2 of 850-um imaging
• HerMES: ALMA Imaging of Herschel-selected Dusty Star-forming Galaxies
• Confusion errors in astrometry and counterpart association
• The XMM-SERVS survey: new XMM-Newton point-source catalog for the XMM-LSS field
• An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: number counts of submillimeter galaxies
• From the far-ultraviolet to the far-infrared -- galaxy emission at $0\le z\le 10$ in the Shark semi-analytic model
• Resolving the Cosmic Far-Infrared Background at 450 and 850 Microns with SCUBA-2
• An 850-micron SCUBA map of the Groth Strip and reliable source extraction
• An ALMA survey of the brightest sub-millimetre sources in the SCUBA-2 COSMOS field
• Simulated observations of sub-millimetre galaxies: the impact of single-dish resolution and field variance
• An ALMA survey of submillimetre galaxies in the COSMOS field: Physical properties derived from energy balance spectral energy distribution modelling
• The SCUBA-2 Cosmology Legacy Survey: Multi-wavelengths counterparts to 10${}^3$ submillimeter galaxies in the UKIDSS-UDS field
• Reproducing sub-millimetre galaxy number counts with cosmological hydrodynamic simulations
• A Decade of SCUBA-2: A Comprehensive Guide to Calibrating 450 $\mu$m and 850 $\mu$m Continuum Data at the JCMT
• SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES): Faint-End Counts at 450 um
• Detection of an ultra-bright submillimeter galaxy in the Subaru/XMM-Newton Deep Field using AzTEC/ASTE
• VLA imaging of 12CO J=1-0 and free-free emission in lensed submillimetre galaxies
• An ALMA Spectroscopic Survey of the Brightest Submillimeter Galaxies in the SCUBA-2-COSMOS field (AS2COSPEC): Survey Description and First Results
• High-resolution SMA imaging of bright submillimetre sources from the SCUBA-2 Cosmology Legacy Survey
• LOFAR observations of the XMM-LSS field
• A Spitzer survey of Deep Drilling Fields to be targeted by the Vera C. Rubin Observatory Legacy Survey of Space and Time
• VLA imaging of the XMM-LSS / VIDEO deep field at 1-2 GHz
• X-ray Detections of Sub-millimetre Galaxies: Active Galactic Nuclei Versus Starburst Contribution
• The ISM Properties and Gas Kinematics of a Redshift 3 Massive Dusty Star-forming Galaxy
• The Nature of 500 micron Risers I: SMA Observations
• The Nature of 500 Micron Risers II: Sub-mm Faint Dusty Star Forming Galaxies

Cited by in corpus (5)

• Transition Edge Sensors: Physics and Applications
• Deep Submillimetre and Radio Observations in the SSA22 Field. II. Sub-millimetre source catalogue and number counts
• Modeling submillimeter galaxies in cosmological simulations: Contribution to the cosmic star formation density and predictions for future surveys
• Euclid view of dusty star forming galaxies at z>~1.5 detected in wide area submillimetre surveys
• The Radio Galaxy Environment Reference Survey (RAGERS): a submillimetre study of the environments of massive radio-quiet galaxies at $z=1-3$