The SCUBA-2 Cosmology Legacy Survey: blank-field number counts of 450um-selected galaxies and their contribution to the cosmic infrared background

Abstract

The first deep blank-field 450um map (1-sigma~1.3mJy) from the SCUBA-2 Cosmology Legacy Survey (S2CLS), conducted with the James Clerk Maxwell Telescope (JCMT) is presented. Our map covers 140 arcmin^2 of the COSMOS field, in the footprint of the HST CANDELS area. Using 60 submillimetre galaxies (SMGs) detected at >3.75-sigma, we evaluate the number counts of 450um-selected galaxies with flux densities S_450>5mJy. The 8-arcsec JCMT beam and high sensitivity of SCUBA-2 now make it possible to directly resolve a larger fraction of the cosmic infrared background (CIB, peaking at ~200um) into the individual galaxies responsible for its emission than has previously been possible at this wavelength. At S_450>5mJy we resolve (7.4[+/-]0.7)x10^-2 MJy/sr of the CIB at 450um (equivalent to 16[+/-]7% of the absolute brightness measured by COBE at this wavelength) into point sources. A further ~40% of the CIB can be recovered through a statistical stack of 24um emitters in this field, indicating that the majority (~60%) of the CIB at 450um is emitted by galaxies with S_450>2mJy. The average redshift of 450um emitters identified with an optical/near-infrared counterpart is estimated to be <z>=1.3, implying that the galaxies in the sample are in the ultraluminous class (L_IR~1.1x10^12 L_sun). If the galaxies contributing to the statistical stack lie at similar redshifts, then the majority of the CIB at 450um is emitted by galaxies in the LIRG class with L_IR>3.6x10^11 L_sun.

arXiv comment9 pages, 5 figures, submitted to MNRAS

References in corpus (48)

• CANDELS: The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey
• CANDELS: The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey - The Hubble Space Telescope Observations, Imaging Data Products and Mosaics
• Hierarchical Galaxy Formation
• 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
• Interpreting the Cosmic Infrared Background: Constraints on the Evolution of the Dust Enshrouded Star Formation Rate
• The Herschel Multi-tiered Extragalactic Survey: HerMES
• The Spectrum of the Extragalactic Far Infrared Background from the COBE Firas Observations
• Dusty star forming galaxies at high redshift
• The Spitzer Legacy Survey of the HST-ACS 2 sq. deg. COSMOS Field: survey strategy and first analysis
• The Herschel ATLAS
• The Cosmic Infrared Background Resolved by Spitzer. Contributions of Mid-Infrared Galaxies to the Far-Infrared Background
• The Detection of a Population of Submillimeter-Bright, Strongly-Lensed Galaxies
• The SCUBA HAlf Degree Extragalactic Survey (SHADES) -- II. Submillimetre maps, catalogue and number counts
• The nature of faint submm-selected galaxies
• The history of star formation in dusty galaxies
• The LABOCA Survey of the Extended Chandra Deep Field South
• Evolution of the dusty infrared luminosity function from z=0 to z=2.3 using observations from Spitzer
• HerMES: The SPIRE confusion limit
• PAHs contribution to the infrared output energy of the Universe at z~2
• The diversity of SCUBA-selected galaxies
• Cosmic evolution of submillimeter galaxies and their contribution to stellar mass assembly
• A unified empirical model for infrared galaxy counts based on observed physical evolution of distant galaxies
• HerMES: SPIRE galaxy number counts at 250, 350 and 500 microns
• The LABOCA survey of the Extended Chandra Deep Field South: A photometric redshift survey of submillimetre galaxies
• HerMES: deep number counts at 250, 350, and 500 microns in the COSMOS and GOODS-N fields and the build-up of the cosmic infrared background
• The Stellar Mass Content of Submillimeter-Selected Galaxies
• The LABOCA Survey of the Extended Chandra Deep Field South: Clustering of submillimetre galaxies
• Over half of the far-infrared background light comes from galaxies at z >= 1.2
• Mid- and Far-infrared Luminosity Functions and Galaxy Evolution from Multiwavelength Spitzer Observations up to z~2.5
• Spitzer Deep and Wide Legacy Mid- and Far-Infrared Number Counts and Lower Limits of Cosmic Infrared Background
• Testing the Evolutionary Link Between Submillimetre Galaxies and Quasars: CO Observations of QSOs at z~2
• The Balloon-borne Large Aperture Submillimeter Telescope: BLAST
• Probing the submillimetre number counts at f(850um) < 2mJy
• AzTEC Half Square Degree Survey of the SHADES Fields -- I. Maps, Catalogues, and Source Counts
• HerMES: Deep Galaxy Number Counts from a P(D) Fluctuation Analysis of SPIRE Science Demonstration Phase Observations
• The Herschel-ATLAS: Extragalactic Number Counts from 250 to 500 Microns
• The SCUBA HAlf Degree Extragalactic Survey (SHADES) - IV: Radio-mm-FIR photometric redshifts
• Gas, dust and stars in the SCUBA galaxy, SMM J02399-0136: the EVLA reveals a colossal galactic nursery
• Galaxy evolution in the infra-red: comparison of a hierarchical galaxy formation model with SPITZER data
• Discovery of the host galaxy of HDF850.1, the brightest sub-mm source in the Hubble Deep Field
• On the atmospheric limitations of ground-based submillimetre astronomy using array receivers
• A robust sample of submillimetre galaxies: constraints on the prevalence of dusty, high-redshift starbursts
• Faint Submillimter Galaxy Counts at 450 micron
• An AzTEC 1.1-mm Survey for ULIRGs in the field of the Galaxy Cluster MS 0451.6-0305
• Modelling the dusty universe II: The clustering of submillimetre-selected galaxies
• A new era of wide-field submillimetre imaging: on-sky performance of SCUBA-2

Cited by in corpus (88)

• Dusty Star-Forming Galaxies at High Redshift
• A deep ALMA image of the Hubble Ultra Deep Field
• Regularity underlying complexity: a redshift-independent description of the continuous variation of galaxy-scale molecular gas properties in the mass-star formation rate plane
• The SCUBA-2 Cosmology Legacy Survey: 850um maps, catalogues and number counts
• ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: The Infrared Excess of UV-selected z=2-10 galaxies as a function of UV-continuum Slope and Stellar Mass
• A dominant population of optically invisible massive galaxies in the early Universe
• ALMA Imaging and Gravitational Lens Models of South Pole Telescope-Selected Dusty, Star-Forming Galaxies at High Redshifts
• High-redshift star formation in the ALMA era
• The impact of clustering and angular resolution on far-infrared and millimeter continuum observations
• Characterisation of SCUBA-2 450um and 850um-selected Galaxies in the COSMOS Field
• The Evolution of the IR Luminosity Function and Dust-obscured Star Formation in the Last 13 Billion Years
• On the dust temperatures of high redshift galaxies
• The Herschel Stripe 82 Survey (HerS): Maps and Early Catalog
• The Brightest Galaxies in the Dark Ages: Galaxies' Dust Continuum Emission During the Reionization Era
• The SCUBA-2 Cosmology Legacy Survey: the nature of bright submm galaxies from 2 deg2 of 850-um imaging
• ALMACAL I: First dual-band number counts from a deep and wide ALMA submm survey, free from cosmic variance
• Witnessing the birth of the red sequence: ALMA high-resolution imaging of [CII] and dust in two interacting ultra-red starbursts at z = 4.425
• Turbulent Gas in Lensed Planck-selected Starbursts at redshifts 1-3.5
• The SCUBA-2 Cosmology Legacy Survey: The clustering of submillimetre galaxies in the UKIDSS UDS field
• Resolving the Cosmic Far-Infrared Background at 450 and 850 Microns with SCUBA-2
• Simulated observations of sub-millimetre galaxies: the impact of single-dish resolution and field variance
• The evolving far-IR galaxy luminosity function and dust-obscured star-formation rate density out to z~5
• A Submillimeter Perspective on the GOODS Fields (SUPER GOODS) - I. An Ultradeep SCUBA-2 Survey of the GOODS-N
• Evolution of cosmic star formation in the SCUBA-2 Cosmology Legacy Survey
• Molecular Gas Contents and Scaling Relations for Massive Passive Galaxies at Intermediate Redshifts from the LEGA-C Survey
• The SCUBA-2 Cosmology Legacy Survey: Multi-wavelengths counterparts to 10${}^3$ submillimeter galaxies in the UKIDSS-UDS field
• A Decade of SCUBA-2: A Comprehensive Guide to Calibrating 450 $\mu$m and 850 $\mu$m Continuum Data at the JCMT
• Physical properties and evolution of (Sub-)millimeter selected galaxies in the galaxy formation simulation Shark
• The SCUBA-2 Cosmology Legacy Survey: The EGS deep field I - Deep number counts and the redshift distribution of the recovered Cosmic Infrared Background at 450 and 850 um
• The influence of wavelength, flux, and lensing selection effects on the redshift distribution of dusty, star-forming galaxies
• SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES): Faint-End Counts at 450 um
• The SCUBA-2 Cosmology Legacy Survey: galaxies in the deep 850-micron survey, and the star-forming `main sequence'
• The JCMT Gould Belt Survey: A Quantitative Comparison Between SCUBA-2 Data Reduction Methods
• An Extreme Starburst in Close Proximity to the Central Galaxy of a Rich Galaxy Cluster at z=1.7
• The SCUBA-2 Cosmology Legacy Survey: the submillimetre properties of Lyman break galaxies at z=3-5
• The SCUBA-2 Cosmology Legacy Survey: The EGS deep field - II. Morphological transformation and multi-wavelength properties of faint submillimetre galaxies
• The Hawaii SCUBA-2 Lensing Cluster Survey: Number Counts and Submillimeter Flux Ratios
• Submillimetre observations of WISE/radio-selected AGN and their environments
• The SCUBA-2 Cosmology Legacy Survey: demographics of the 450 μm-population
• Overdensity of submillimeter galaxies around the $z\simeq 2.3$ MAMMOTH-1 nebula
• SMA observations on faint Submillimeter Galaxies with S${}_{850}$ < 2 mJy: Ultra Dusty Low-Luminosity Galaxies at High Redshift
• SCUBA-2 Ultra Deep Imaging Eao Survey (Studies) III: Multi-wavelength properties, luminosity functions and preliminary source catalog of 450-$\mu$m-selected galaxies
• A multi-wavelength de-blended Herschel view of the statistical properties of dusty star-forming galaxies across cosmic time
• A machine-learning method for identifying multi-wavelength counterparts of submillimeter galaxies: training and testing using AS2UDS and ALESS
• Tracing the evolution of dust-obscured activity using sub-millimetre galaxy populations from STUDIES and AS2UDS
• Early Science with the Large Millimeter Telescope: Observations of dust continuum and CO emission lines of cluster-lensed submillimetre galaxies at z=2.0-4.7
• The redshift distribution of submillimetre galaxies at different wavelengths
• Ultra-Red Galaxies Signpost Candidate Proto-Clusters at High Redshift
• A SCUBA-2 850 micron survey of protoplanetary discs in the sigma Orionis cluster
• The evolution of the UV-to-mm extragalactic background light: evidence for a top-heavy initial mass function?
• A submillimeter galaxy illuminating its circumgalactic medium: Ly-alpha scattering in a cold, clumpy outflow
• Planck intermediate results. XXXIX. The Planck list of high-redshift source candidates
• Simulating the infrared sky with a Spritz
• The Clustering Evolution of Dusty Star-Forming Galaxies
• Comparison of cosmological simulations and deep submillimetre galaxy surveys
• A Submillimeter Perspective on the GOODS Fields (SUPER GOODS). V. Deep 450 Micron Imaging
• SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES) IV: Spatial clustering and halo masses of 450-$\mu$m-selected sub-millimeter galaxies
• The submillimetre view of massive clusters at z~0.8-1.6
• Identification of z~>2 Herschel 500 micron sources using color-deconfusion
• Imaging the environment of a z = 6.3 submillimeter galaxy with SCUBA-2
• Status of SuperSpec: A Broadband, On-Chip Millimeter-Wave Spectrometer
• Herschel-ATLAS : The spatial clustering of low and high redshift submillimetre galaxies
• Super-resolving Herschel imaging: a proof of concept using Deep Neural Networks
• Blending bias impacts the host halo masses derived from a cross-correlation analysis of bright sub-millimetre galaxies
• The growth of typical star-forming galaxies and their super massive black holes across cosmic time since z~2
• A SCUBA-2 survey of FeLoBAL QSOs: Are FeLoBALs in a `transition phase' between ULIRGs and QSOs?
• A millimeter-wave redshift search for the unlensed HyLIRG, HS1700.850.1
• A large population of strongly lensed faint submillimetre galaxies in future dark energy surveys inferred from JWST imaging
• PdBI Cold Dust Imaging of Two Extremely Red H-[4.5]>4 Galaxies Discovered with SEDS and CANDELS
• The average submillimetre properties of Lyman-alpha Blobs at z=3
• ALMA 26 arcmin${}^2$ survey of GOODS-S at one-millimeter (ASAGAO): millimeter properties of stellar mass selected galaxies
• Evolution of Dust-Obscured Star Formation and Gas to z=2.2 from HiZELS
• SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES) II: Structural Properties and Near-Infrared Morphologies of Faint Submillimeter Galaxies
• Cold Dust Emission from X-ray AGN in the SCUBA-2 Cosmology Legacy Survey: Dependence on Luminosity, Obscuration & AGN Activity
• JCMT/SCUBA-2 uncovers an excess of $850\mu$m counts on megaparsec scales around high-redshift quasars. Characterization of the overdensities and their alignment with the quasars' Ly$\alpha$ nebulae
• ALMACAL VII: First Interferometric Number Counts at 650 $\mu$m
• A submillimetre-bright z~3 overdensity behind a z~1 supercluster revealed by SCUBA-2 and Herschel
• Multi-band Optical and Near-infrared Properties of Faint Submillimeter Galaxies with Serendipitous ALMA Detections
• Observatory/data centre partnerships and the VO-centric archive: The JCMT Science Archive experience
• SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES). V. Confusion-limited Submillimeter Galaxy Number Counts at 450 $\mu$m and Data Release for the COSMOS Field
• The SCUBA-2 Cosmology Legacy Survey: The EGS deep field -- III. The evolution of faint submillimeter galaxies at $z<4$
• Deep Submillimetre and Radio Observations in the SSA22 Field. II. Sub-millimetre source catalogue and number counts
• Measurements and analysis of optical crosstalk in a microwave kinetic inductance detector array
• The HASHTAG project: The First Submillimeter Images of the Andromeda Galaxy from the Ground
• Dusty Quasars at High Redshifts
• The case for a 'sub-millimeter SDSS': a 3D map of galaxy evolution to z~10
• The Nearby Evolved Stars Survey II: Constructing a volume-limited sample and first results from the James Clerk Maxwell Telescope
• Implementing Remote Observing at the JCMT