Herschel-ATLAS Data Release III: Near-infrared counterparts in the South Galactic Pole field -- Another 100,000 submillimetre galaxies

Abstract

In this paper we present the third data release (DR3) of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS). We identify likely near-infrared counterparts to submillimetre sources in the South Galactic Pole (SGP) field using the VISTA VIKING survey. We search for the most probable counterparts within 15 arcsec of each Herschel source using a probability measure based on the ratio between the likelihood the true counterpart is found close to the submillimetre source and the likelihood that an unrelated object is found in the same location. For 110 374 (57.0$\%$) sources we find galaxies on the near-infrared images where the probability that the galaxy is associated to the source is greater than 0.8. We estimate the false identification rate to be 4.8$\%$, with a probability that the source has an associated counterpart on the VIKING images of 0.835$\pm$0.009. We investigate the effects of gravitational lensing and present 41 (0.14 deg${}^{-2}$) candidate lensed systems with observed flux densities > 100 mJy at 500 $\mu$m. We include in the data release a probability that each source is gravitationally lensed and discover an additional 5 923 sources below 100 mJy that have a probability greater than 0.94 of being gravitationally lensed. We estimate that $\sim$ 400 - 1 000 sources have multiple true identifications in VIKING based on the similarity of redshift estimates for multiple counterparts close to a Herschel source. The data described in this paper can be found at the H-ATLAS website.

arXiv comment16 pages, 13 figures, accepted for publication in MNRAS

References in corpus (67)

• The Seventh Data Release of the Sloan Digital Sky Survey
• Herschel Space Observatory - An ESA facility for far-infrared and submillimetre astronomy
• The Photodetector Array Camera and Spectrometer (PACS) on the Herschel Space Observatory
• The Herschel-SPIRE instrument and its in-flight performance
• EAZY: A Fast, Public Photometric Redshift Code
• 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
• A Physical Model for the Co-evolution of QSOs and of their Spheroidal Hosts
• SCUBA: A common-user submillimetre camera operating on the James Clerk Maxwell Telescope
• Dusty Star-Forming Galaxies at High Redshift
• 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 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
• A median redshift of 2.4 for galaxies bright at submillimetre wavelengths
• Photometric redshift and classification for the XMM-COSMOS sources
• A Critical Assessment of Photometric Redshift Methods: A CANDELS Investigation
• The Canada-UK Deep Submillimetre Survey: First Submillimetre Images, the Source Counts, and Resolution of the Background
• Extragalactic millimeter-wave sources in South Pole Telescope survey data: source counts, catalog, and statistics for an 87 square-degree field
• The SCUBA HAlf Degree Extragalactic Survey (SHADES) - III. Identification of radio and mid-infrared counterparts to submillimetre galaxies
• Sub-millimeter galaxies as progenitors of compact quiescent galaxies
• An Atlas of Galaxy Spectral Energy Distributions from the Ultraviolet to the Mid-Infrared
• Astrophysical and Cosmological Information from Large-scale sub-mm Surveys of Extragalactic Sources
• The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background: IV. Cosmological Implications
• 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
• Quiescent galaxies 1.5 billion years after the Big Bang and their progenitors
• The Herschel-ATLAS Data Release 1 Paper I: Maps, Catalogues and Number Counts
• HerMES: Candidate Gravitationally Lensed Galaxies and Lensing Statistics at Submillimeter Wavelengths
• A Redshift Survey of Herschel Far-Infrared Selected Starbursts and Implications for Obscured Star Formation
• 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
• A deep VLA survey at 6 cm in the Lockman Hole
• Herschel-ATLAS: counterparts from the UV--NIR in the science demonstration phase catalogue
• Galaxy And Mass Assembly (GAMA): The input catalogue and star-galaxy separation
• The Herschel-ATLAS: Extragalactic Number Counts from 250 to 500 Microns
• GPz: Non-stationary sparse Gaussian processes for heteroscedastic uncertainty estimation in photometric redshifts
• The energy output of the Universe from 0.1 micron to 1000 micron
• Cosmological parameters from strong gravitational lensing and stellar dynamics in elliptical galaxies
• The Herschel-ATLAS Data Release 1 Paper II: Multi-wavelength counterparts to submillimetre sources
• Herschel-ATLAS: towards a sample of ~1000 strongly-lensed galaxies
• The Sloan Digital Sky Survey Quasar Lens Search. VI. Constraints on Dark Energy and the Evolution of Massive Galaxies
• Candidate Gravitationally Lensed Dusty Star-forming Galaxies in the Herschel Wide Area Surveys
• Photometric redshifts for the next generation of deep radio continuum surveys - I: Template fitting
• The Flat Spectrum Radio Luminosity Function, Gravitational Lensing, Galaxy Ellipticities and Cosmology
• A Sparse Gaussian Process Framework for Photometric Redshift Estimation
• The Herschel-ATLAS Data Release 2, Paper I. Submillimeter and Far-infrared Images of the South and North Galactic Poles: The Largest Herschel Survey of the Extragalactic Sky
• H-ATLAS: estimating redshifts of Herschel sources from sub-mm fluxes
• The Herschel Bright Sources (HerBS): Sample definition and SCUBA-2 observations
• Photometric redshifts for the next generation of deep radio continuum surveys - II. Gaussian processes and hybrid estimates
• The local sub-mm luminosity functions and predictions from Spitzer to Herschel
• The Herschel-ATLAS Data Release 2 Paper II: Catalogues of far-infrared and submillimetre sources in the fields at the south and north Galactic Poles
• Herschel-ATLAS: VISTA VIKING near-IR counterparts in the Phase 1 GAMA 9h data
• Strong lensing of submillimetre galaxies: A tracer of foreground structure?
• Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing
• H-ATLAS/GAMA: Magnification Bias Tomography. Astrophysical constraints above $\sim 1$ arcmin
• A search for the lenses in the Herschel Bright Sources (HerBS) Sample
• HELP : The Herschel Extragalactic Legacy Project & The Coming of Age of Multi-Wavelength Astrophysics
• Practical Cosmology with Lenses
• Colour matters: the effects of lensing on the positional offsets between optical and submillimetre galaxies in Herschel-ATLAS
• The second Herschel-ATLAS Data Release - III: optical and near-infrared counterparts in the North Galactic Plane field
• SHALOS: Statistical Herschel-ATLAS Lensed Objects Selection
• MADX -- A simple technique for source detection and measurement using multi-band imaging from the Herschel-ATLAS survey
• Constraining Dark Energy From Splitting Angle Statistic of Strong Gravitational Lenses

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