H-ATLAS/GAMA: Magnification Bias Tomography. Astrophysical constraints above $\sim 1$ arcmin

Abstract

In this work we measure and study the cross-correlation signal between a foreground sample of GAMA galaxies with spectroscopic redshifts in the range $0.2<z<0.8$, and a background sample of H-ATLAS galaxies with photometric redshifts $\gtrsim 1.2$. It constitutes a substantial improvement over the cross-correlation measurements made by Gonzalez-Nuevo et al. (2014) with updated catalogues and wider area (with $S/N\gtrsim 5$ below 10' and reaching $S/N\sim 20$ below 30"). The better statistics allow us to split the sample in different redshift bins and to perform a tomographic analysis (with $S/N\gtrsim 3$ below 10 arcmin and reaching $S/N\sim 15$ below 30"). Moreover, we implement a halo model to extract astrophysical information about the background galaxies and the deflectors that are producing the lensing link between the foreground (lenses) and background (sources) samples. In the case of the sources, we find typical mass values in agreement with previous studies: a minimum halo mass to host a central galaxy, $M_{min}\sim 10^{12.26}{M}_{\odot }$, and a pivot halo mass to have at least one sub-halo satellite, $M_1\sim 10^{12.84}{M}_{\odot }$. However, the lenses are massive galaxies or even galaxy groups/clusters, with minimum mass of $M_{min}^{lens}\sim 10^{13.06}{M}_{\odot }$. Above a mass of $M_1^{lens}\sim 10^{14.57}{M}_{\odot }$ they contain at least one additional satellite galaxy which contributes to the lensing effect. The tomographic analysis shows that, while $M_1^{lens}$ is almost redshift independent, there is a clear evolution of increase $M_{min}^{lens}$ with redshift in agreement with theoretical estimations. Finally, the halo modeling allows us to identify a strong lensing contribution to the cross-correlation for angular scales below 30". This interpretation is supported by the results of basic but effective simulations.

31 pages, 9 figures, accepted version to be published in JCAP

References in corpus (18)

• A Dust-Obscured Massive Maximum-Starburst Galaxy at a Redshift of 6.34
• The Detection of a Population of Submillimeter-Bright, Strongly-Lensed Galaxies
• Intense Star Formation within Resolved Compact Regions in a Galaxy at z=2.3
• ALMA Imaging and Gravitational Lens Models of South Pole Telescope-Selected Dusty, Star-Forming Galaxies at High Redshifts
• The Herschel-ATLAS Data Release 1 Paper I: Maps, Catalogues and Number Counts
• The redshift distribution of dusty star forming galaxies from the SPT survey
• The Herschel-ATLAS: a sample of 500μm-selected lensed galaxies over 600 square degrees
• Galaxy And Mass Assembly (GAMA): autoz spectral redshift measurements, confidence and errors
• 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-ATLAS Data Release 1 Paper II: Multi-wavelength counterparts to submillimetre sources
• The SCUBA-2 Cosmology Legacy Survey: The clustering of submillimetre galaxies in the UKIDSS UDS field
• Cross-correlation between the CMB lensing potential measured by Planck and high-z sub-mm galaxies detected by the Herschel-ATLAS survey
• Early Science with the Large Millimeter Telescope: Observations of Extremely Luminous High-z Sources Identified by Planck
• Lens Models of Herschel-Selected Galaxies From High-Resolution Near-IR Observations
• Faint Submillimeter Galaxies identified through their optical/near-infrared colours I: spatial clustering and halo masses
• On the cross-correlation of sub-mm sources and optically-selected galaxies
• Planck's Dusty GEMS. II. Extended [CII] emission and absorption in the Garnet at z=3.4 seen with ALMA
• Colour matters: the effects of lensing on the positional offsets between optical and submillimetre galaxies in Herschel-ATLAS

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• Cosmological constraints with the sub-millimetre galaxies Magnification Bias after large scale bias corrections
• A direct and robust method to observationally constrain the halo mass function via the submillimeter magnification bias: Proof of concept
• QSOs sigposting cluster size halos as gravitational lenses: halo mass, projected mass density profile and concentration at $z\sim 0.7$
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• The second Herschel-ATLAS Data Release - III: optical and near-infrared counterparts in the North Galactic Plane field
• Herschel-ATLAS : The spatial clustering of low and high redshift submillimetre galaxies
• Herschel-ATLAS Data Release III: Near-infrared counterparts in the South Galactic Pole field -- Another 100,000 submillimetre galaxies
• SHALOS: Statistical Herschel-ATLAS Lensed Objects Selection
• Over-density of SMGs in fields containing z~0.3 galaxies: magnification bias and the implications for studies of galaxy evolution
• The Physical Origin of Dark Energy Constraints from Rubin Observatory and CMB-S4 Lensing Tomography
• Tomography-based observational measurements of the halo mass function via the submillimeter magnification bias
• Quasi-stellar objects and galaxy mass density profiles derived using the submillimetre galaxies magnification bias
• Galaxy cluster mass density profile derived using the submillimetre galaxies magnification bias
• ScamPy -- A sub-halo clustering & abundance matching based Python interface for painting galaxies on the dark matter halo/sub-halo hierarchy
• Methodological refinement of the submillimeter galaxy magnification bias. II. Cosmological analysis with tomography
• Multifrequency filter search for high redshift sources and lensing systems in Herschel-ATLAS
• Cosmic Insights from Galaxy Clusters: Exploring Magnification Bias on Sub-millimeter Galaxies
• Cosmic backgrounds from the radio to the far-infrared: recent results and perspectives from cosmological and astrophysical surveys
• Methodological refinement of the submillimeter galaxy cross-correlation function measurements and their uncertainty estimation
• Cosmic magnification on high-redshift submillimeter galaxies