Herschel-ATLAS: counterparts from the ultraviolet-near-infrared in the science demonstration phase catalogue★

Smith, D. J. B.; Dunne, L.; Maddox, S.; Eales, Stephen Anthony; Bonfield, D. G.; Jarvis, Matt J.; Sutherland, William J.; Fleuren, S.; Rigby, E. E.; Thompson, M. A.; Baldry, I. K.; Bamford, Steven P.; Buttiglione, S.; Cava, A.; Clements, D. L.; Cooray, Asantha; Croom, S. M.; Dariush, Aliakbar; Zotti, G. de; Driver, Simon P.; Dunlop, James; Fritz, J.; Hill, D. T.; Hopkins, A. M.; Hopwood, R.; Ibar, E.; Ivison, R. J.; Jones, D. Heath; Kelvin, Lee S.; Leeuw, L. L.; Liske, J.; Loveday, Jon; Madore, Barry F.; Norberg, Peder; Panuzzo, P.; Pascale, Enzo; Pohlen, M.; Popescu, Cristina; Prescott, M.; Robotham, Aaron S. G.; Rodighiero, G.; Scott, Douglas; Seibert, Mark; Sharp, Robert; Temi, P.; Tuffs, R.; Werf, P. van der; Kampen, E. van

doi:10.1111/j.1365-2966.2011.18827.x

Cited by 113 publications

(139 citation statements)

References 89 publications

(126 reference statements)

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“…for FWHM=18 1 and SNR=5 (Ivison et al 2007;Smith et al 2011). This indicates that a fraction of the "pairs" that have small angular separations (θ 250 8″) could be single sources, i.e., QSOs that are far-IR-luminous.…”

Section: Radio Detectionsmentioning

confidence: 94%

The Circumgalactic Medium of Submillimeter Galaxies. I. First Results From a Radio-Identified Sample

Prochaska

Mutel

et al. 2016

ApJ

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We present the first results from an ongoing survey to characterize the circumgalactic medium (CGM) of massive high-redshift galaxies detected as submillimeter galaxies (SMGs). We constructed a parent sample of 163 SMG-QSO pairs with separations less than ∼36″ by cross-matching far-infrared-selected galaxies from Herschel with spectroscopically confirmed QSOs. The Herschel sources were selected to match the properties of the SMGs. We determined the sub-arcsecond positions of six Herschel sources with the Very Large Array and obtained secure redshift identification for three of those with near-infrared spectroscopy. The QSO sightlines probe transverse proper distances of 112, 157, and 198kpc at foreground redshifts of 2.043, 2.515, and 2.184, respectively, which are comparable to the virial radius of the ∼1013 M e halos expected to host SMGs. High-quality absorption-line spectroscopy of the QSOs reveals systematically strong H I Lyα absorption around all three SMGs, with rest-frame equivalent widths of ∼2-3Å. However, none of the three absorbers exhibit compelling evidence for optically thick H I gas or metal absorption, in contrast to the dominance of strong neutral absorbers in the CGM of luminous z∼2 QSOs. The low covering factor of optically thick H I gas around SMGs tentatively indicates that SMGs may not have as prominent cool gas reservoirs in their halos as the coeval QSOs and that they may inhabit less massive halos than previously thought.

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Section: Radio Detectionsmentioning

confidence: 94%

The Circumgalactic Medium of Submillimeter Galaxies. I. First Results From a Radio-Identified Sample

Prochaska

Mutel

et al. 2016

ApJ

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“…We do this by following the method used for sources in the Herschel-ATLAS survey by Smith et al (2011), which involves creating a 2-dimensional histogram of the difference between the 850 µm and UDS positions for every source in each catalogue, which is shown in figure 1. Each bin of the histogram is 1 arc sec in size, and reveals a residual offset in the 850 µm astrometry relative to the UDS.…”

Section: Astrometry and Initial Checksmentioning

confidence: 99%

“…Multiplicity is also a key parameter if we are to clarify the role of SMGs within current models of galaxy formation and evolution, however it presents considerable challenges for traditional cross-identification efforts (e.g. using likelihood ratio methods Wolstencroft et al 1986;Sutherland & Saunders 1992;Smith et al 2011;Fleuren et al 2012). The properties of SMGs are therefore still under investigation, using both observations (e.g.…”

Section: Introductionmentioning

confidence: 99%

A complete distribution of redshifts for submillimetre galaxies in the SCUBA-2 Cosmology Legacy Survey UDS field

Smith

Hayward

Jarvis

et al. 2017

Monthly Notices of the Royal Astronomical Society

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Sub-milllimetre galaxies (SMGs) are some of the most luminous star-forming galaxies in the Universe, however their properties remain hard to determine due to the difficulty of identifying their optical/near-infrared counterparts. One of the key steps to determining the nature of SMGs is measuring a redshift distribution representative of the whole population. We do this by applying statistical techniques to a sample of 761 850 µm sources from the SCUBA-2 Cosmology Legacy Survey observations of the UKIDSS Ultra-Deep Survey (UDS) Field. We detect excess galaxies around > 98.4 per cent of the 850 µm positions in the deep UDS catalogue, giving us the first 850 µm selected sample to have virtually complete optical/nearinfrared redshift information. Under the reasonable assumption that the redshifts of the excess galaxies are representative of the SMGs themselves, we derive a median SMG redshift of z = 2.05 ± 0.03, with 68 per cent of SMGs residing between 1.07 < z < 3.06. We find an average of 1.52 ± 0.09 excess K-band galaxies within 12 arc sec of an 850 µm position, with an average stellar mass of 2.2 ± 0.1 × 10 10 M ⊙ . While the vast majority of excess galaxies are star-forming, 8.0 ± 2.1 per cent have passive rest-frame colours, and are therefore unlikely to be detected at sub-millimetre wavelengths even in deep interferometry. We show that brighter SMGs lie at higher redshifts, and use our SMG redshift distribution -along with the assumption of a universal far-infrared SED -to estimate that SMGs contribute around 30 per cent of the cosmic star formation rate density between 0.5 < z < 5.0.

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“…In 2010, for the Science Demonstration Phase of Herschel, we provided the data products for one 16 deg 2 field in the GAMA 9 hr field (Ibar 2010;Pascale et al 2011;Rigby et al 2011;Smith et al 2011). In our first large data release (DR1), we released the data products for three fields on the celestial equator centered at R.A. of approximately 9, 12, and 15 hr (Valiante et al 2016;hereafter V16;Bourne et al 2016), covering a total area of 161 deg 2 .…”

Section: Introductionmentioning

confidence: 99%

The Herschel -ATLAS Data Release 2. Paper II. Catalogs of Far-infrared and Submillimeter Sources in the Fields at the South and North Galactic Poles

Maddox

Valiante

Cigan

et al. 2018

ApJS

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The Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) is a survey of 660 deg 2 with the PACS and SPIRE cameras in five photometric bands: 100, 160, 250, 350, and 500 μm. This is the second of three papers describing the data release for the large fields at the south and north Galactic poles (NGP and SGP). In this paper we describe the catalogs of far-infrared and submillimeter sources for the NGP and SGP, which cover 177.1 deg 2 and 303.4 deg 2 , respectively. The catalogs contain 118,908 sources for the NGP field and 193,527 sources for the SGP field detected at more than 4σ significance in any of the 250, 350, or 500 μmbands. The source detection is based on the 250 μm map, and we present photometry in all five bands for each source, including aperture photometry for sources known to be extended. The rms positional accuracy for the faintest sources is about 2.4 arcsec in both R.A. and decl. We present a statistical analysis of the catalogs and discuss the practical issuescompleteness, reliability, flux boosting, accuracy of positions, accuracy of flux measurements-necessary to use the catalogs for astronomical projects.

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Herschel-ATLAS: counterparts from the ultraviolet-near-infrared in the science demonstration phase catalogue★

Cited by 113 publications

References 89 publications

The Circumgalactic Medium of Submillimeter Galaxies. I. First Results From a Radio-Identified Sample

The Circumgalactic Medium of Submillimeter Galaxies. I. First Results From a Radio-Identified Sample

A complete distribution of redshifts for submillimetre galaxies in the SCUBA-2 Cosmology Legacy Survey UDS field

The Herschel -ATLAS Data Release 2. Paper II. Catalogs of Far-infrared and Submillimeter Sources in the Fields at the South and North Galactic Poles

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