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Herschel-ATLAS : VISTA VIKING near-infrared counterparts in the Phase 1 GAMA 9-h data

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Abstract
We identify near-infrared Ks-band counterparts to Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) submillimetre (submm) sources, using a preliminary object catalogue from the VISTA Kilo-degree Infrared Galaxy (VIKING) survey. The submm sources are selected from the H-ATLAS Phase 1 catalogue of the Galaxy and Mass Assembly 9-h field, which includes all objects detected at 250, 350 or with the instrument. We apply and discuss a likelihood ratio method for VIKING candidates within a search radius of 10 arcsec of the 22 000 SPIRE sources with a 5s detection at . We estimate the fraction of SPIRE sources with a counterpart above the magnitude limit of the VIKING survey to be Q0 similar to 0.73. We find that 11 294 (51 per cent) of the SPIRE sources have a best VIKING counterpart with a reliability R= 0.8, and the false identification rate of these is estimated to be 4.2 per cent. We expect to miss 5 per cent of true VIKING counterparts. There is evidence from Z-J and J-Ks colours that the reliable counterparts to SPIRE galaxies are marginally redder than the field population. We obtain photometric redshifts for 68 per cent of all (non-stellar) VIKING candidates with a median redshift of . We have spectroscopic redshifts for 3147 (28 per cent) of the reliable counterparts from existing redshift surveys. Comparing to the results of the optical identifications supplied with the Phase 1 catalogue, we find that the use of medium-deep near-infrared data improves the identification rate of reliable counterparts from 36 to 51 per cent.
Keywords
infrared: galaxies, methods: statistical, submillimetre: galaxies, SCIENCE DEMONSTRATION PHASE, DEEP-FIELD-SOUTH, DEGREE EXTRAGALACTIC SURVEY, SUBMILLIMETER GALAXIES, MASSIVE GALAXIES, MERGER RATE, WIDE-FIELD, MIDINFRARED COUNTERPARTS, LUMINOSITY FUNCTIONS, RADIO CORRELATION

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Citation

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MLA
Fleuren, S, W Sutherland, L Dunne, et al. “Herschel-ATLAS : VISTA VIKING Near-infrared Counterparts in the Phase 1 GAMA 9-h Data.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 423.3 (2012): 2407–2424. Print.
APA
Fleuren, S., Sutherland, W., Dunne, L., Smith, D., Maddox, S., González-Nuevo, J., Findlay, J., et al. (2012). Herschel-ATLAS : VISTA VIKING near-infrared counterparts in the Phase 1 GAMA 9-h data. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 423(3), 2407–2424.
Chicago author-date
Fleuren, S, W Sutherland, L Dunne, DJB Smith, SJ Maddox, J González-Nuevo, J Findlay, et al. 2012. “Herschel-ATLAS : VISTA VIKING Near-infrared Counterparts in the Phase 1 GAMA 9-h Data.” Monthly Notices of the Royal Astronomical Society 423 (3): 2407–2424.
Chicago author-date (all authors)
Fleuren, S, W Sutherland, L Dunne, DJB Smith, SJ Maddox, J González-Nuevo, J Findlay, R Auld, Maarten Baes, NA Bond, DG Bonfield, N Bourne, A Cooray, S Buttiglione, A Cava, A Dariush, G De Zotti, SP Driver, S Dye, S Eales, Jacopo Fritz, MLP Gunawardhana, R Hopwood, E Ibar, RJ Ivison, MJ Jarvis, L Kelvin, A Lapi, J Liske, MJ Michalowski, M Negrello, E Pascale, M Pohlen, M Prescott, EE Rigby, A Robotham, D Scott, P Temi, MA Thompson, E Valiante, and P van der Werf. 2012. “Herschel-ATLAS : VISTA VIKING Near-infrared Counterparts in the Phase 1 GAMA 9-h Data.” Monthly Notices of the Royal Astronomical Society 423 (3): 2407–2424.
Vancouver
1.
Fleuren S, Sutherland W, Dunne L, Smith D, Maddox S, González-Nuevo J, et al. Herschel-ATLAS : VISTA VIKING near-infrared counterparts in the Phase 1 GAMA 9-h data. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 2012;423(3):2407–24.
IEEE
[1]
S. Fleuren et al., “Herschel-ATLAS : VISTA VIKING near-infrared counterparts in the Phase 1 GAMA 9-h data,” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 423, no. 3, pp. 2407–2424, 2012.
@article{3001422,
  abstract     = {We identify near-infrared Ks-band counterparts to Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) submillimetre (submm) sources, using a preliminary object catalogue from the VISTA Kilo-degree Infrared Galaxy (VIKING) survey. The submm sources are selected from the H-ATLAS Phase 1 catalogue of the Galaxy and Mass Assembly 9-h field, which includes all objects detected at 250, 350 or with the instrument. We apply and discuss a likelihood ratio method for VIKING candidates within a search radius of 10 arcsec of the 22 000 SPIRE sources with a 5s detection at . We estimate the fraction of SPIRE sources with a counterpart above the magnitude limit of the VIKING survey to be Q0 similar to 0.73. We find that 11 294 (51 per cent) of the SPIRE sources have a best VIKING counterpart with a reliability R= 0.8, and the false identification rate of these is estimated to be 4.2 per cent. We expect to miss 5 per cent of true VIKING counterparts. There is evidence from Z-J and J-Ks colours that the reliable counterparts to SPIRE galaxies are marginally redder than the field population. We obtain photometric redshifts for 68 per cent of all (non-stellar) VIKING candidates with a median redshift of . We have spectroscopic redshifts for 3147 (28 per cent) of the reliable counterparts from existing redshift surveys. Comparing to the results of the optical identifications supplied with the Phase 1 catalogue, we find that the use of medium-deep near-infrared data improves the identification rate of reliable counterparts from 36 to 51 per cent.},
  author       = {Fleuren, S and Sutherland, W and Dunne, L and Smith, DJB and Maddox, SJ and González-Nuevo, J and Findlay, J and Auld, R and Baes, Maarten and Bond, NA and Bonfield, DG and Bourne, N and Cooray, A and Buttiglione, S and Cava, A and Dariush, A and De Zotti, G and Driver, SP and Dye, S and Eales, S and Fritz, Jacopo and Gunawardhana, MLP and Hopwood, R and Ibar, E and Ivison, RJ and Jarvis, MJ and Kelvin, L and Lapi, A and Liske, J and Michalowski, MJ and Negrello, M and Pascale, E and Pohlen, M and Prescott, M and Rigby, EE and Robotham, A and Scott, D and Temi, P and Thompson, MA and Valiante, E and van der Werf, P},
  issn         = {0035-8711},
  journal      = {MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
  keywords     = {infrared: galaxies,methods: statistical,submillimetre: galaxies,SCIENCE DEMONSTRATION PHASE,DEEP-FIELD-SOUTH,DEGREE EXTRAGALACTIC SURVEY,SUBMILLIMETER GALAXIES,MASSIVE GALAXIES,MERGER RATE,WIDE-FIELD,MIDINFRARED COUNTERPARTS,LUMINOSITY FUNCTIONS,RADIO CORRELATION},
  language     = {eng},
  number       = {3},
  pages        = {2407--2424},
  title        = {Herschel-ATLAS : VISTA VIKING near-infrared counterparts in the Phase 1 GAMA 9-h data},
  url          = {http://dx.doi.org/10.1111/j.1365-2966.2012.21048.x},
  volume       = {423},
  year         = {2012},
}

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