Herschel-ATLAS: Counterparts from the ultraviolet-near-infrared in the science demonstration phase catalogue
Por:
Smith D.J.B., Dunne L., Maddox S.J., Eales S., Bonfield D.G., Jarvis M.J., Sutherland W., Fleuren S., Rigby E.E., Thompson M.A., Baldry I.K., Bamford S., Buttiglione S., Cava A., Clements D.L., Cooray A., Croom S., Dariush A., de Zotti G., Driver S.P., Dunlop J.S., Fritz J., Hill D.T., Hopkins A., Hopwood R., Ibar E., Ivison R.J., Jones D.H., Kelvin L., Leeuw L., Liske J., Loveday J., Madore B.F., Norberg P., Panuzzo P., Pascale E., Pohlen M., Popescu C.C., Prescott M., Robotham A., Rodighiero G., Scott D., Seibert M., Sharp R., Temi P., Tuffs R.J., van der Werf P., van Kampen E.
Publicada:
1 ene 2011
Resumen:
We present a technique to identify optical counterparts of 250-µm-selected sources from theHerschel-ATLAS survey. Of the 6621 250µm > 32-mJy sources in our science demonstration catalogue we find that ~60 per cent have counterparts brighter thanr= 22.4mag in the Sloan Digital Sky Survey. Applying a likelihood ratio technique we are able to identify 2423 of the counterparts with a reliabilityR> 0.8. This is approximately 37 per cent of the full 250-µm catalogue. We have estimated photometric redshifts for each of these 2423 reliable counterparts, while 1099 also have spectroscopic redshifts collated from several different sources, including the GAMA survey. We estimate the completeness of identifying counterparts as a function of redshift, and present evidence that 250-µm-selectedHerschel-ATLAS galaxies have a bimodal redshift distribution. Those with reliable optical identifications have a redshift distribution peaking atz˜ 0.25 ± 0.05, while submillimetre colours suggest that a significant fraction with no counterpart above ther-band limit havez> 1. We also suggest a method for selecting populations of strongly lensed high-redshift galaxies. Our identifications are matched to UV-NIR photometry from the GAMA survey, and these data are available as part of theHerschel-ATLAS public data release. © 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS.
Filiaciones:
Smith D.J.B.:
Centre for Astronomy and Particle Theory, The School of Physics and Astronomy, Nottingham University, University Park Campus, Nottingham NG7 1HR, United Kingdom
Centre for Astrophysics Research, Science and Technology Research Institute, University of Hertfordshire, Hatfield, Herts AL10 9AB, United Kingdom
Dunne L.:
Centre for Astronomy and Particle Theory, The School of Physics and Astronomy, Nottingham University, University Park Campus, Nottingham NG7 1HR, United Kingdom
Maddox S.J.:
Centre for Astronomy and Particle Theory, The School of Physics and Astronomy, Nottingham University, University Park Campus, Nottingham NG7 1HR, United Kingdom
Eales S.:
School of Physics and Astronomy, Cardiff University, Queen Buildings, The Parade, Cardiff CF24 3AA, United Kingdom
Bonfield D.G.:
Centre for Astrophysics Research, Science and Technology Research Institute, University of Hertfordshire, Hatfield, Herts AL10 9AB, United Kingdom
Jarvis M.J.:
Centre for Astrophysics Research, Science and Technology Research Institute, University of Hertfordshire, Hatfield, Herts AL10 9AB, United Kingdom
Sutherland W.:
School of Mathematical Sciences, University of London, Mile End Road, Queen Mary, London E1 4NS, United Kingdom
Fleuren S.:
School of Mathematical Sciences, University of London, Mile End Road, Queen Mary, London E1 4NS, United Kingdom
Rigby E.E.:
Centre for Astronomy and Particle Theory, The School of Physics and Astronomy, Nottingham University, University Park Campus, Nottingham NG7 1HR, United Kingdom
Thompson M.A.:
Centre for Astrophysics Research, Science and Technology Research Institute, University of Hertfordshire, Hatfield, Herts AL10 9AB, United Kingdom
Baldry I.K.:
Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD, United Kingdom
Bamford S.:
Centre for Astronomy and Particle Theory, The School of Physics and Astronomy, Nottingham University, University Park Campus, Nottingham NG7 1HR, United Kingdom
Buttiglione S.:
INAF - Osservatorio Astronomico di Padova, Vicolo Osservatorio 5, I-35122 Padova, Italy
Cava A.:
Departamento de Astrofísica, Facultad de CC. Físicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
Clements D.L.:
Astrophysics Group, Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2AZ, United Kingdom
Cooray A.:
University of California, Department of Physics and Astronomy, 4186 Frederick Reines Hall, Irvine, CA 92697-4575, United States
Croom S.:
Sydney Institute for Astronomy, School of Physics, University of Sydney, NSW 2006, Australia
Dariush A.:
School of Physics and Astronomy, Cardiff University, Queen Buildings, The Parade, Cardiff CF24 3AA, United Kingdom
de Zotti G.:
INAF - Osservatorio Astronomico di Padova, Vicolo Osservatorio 5, I-35122 Padova, Italy
SISSA, Via Bonomea 265, I-34136 Trieste, Italy
Driver S.P.:
SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews KY16 9SS, United Kingdom
International Centre for Radio Astronomy Research, The University of Western Australia, 7 Fairway, Crawley, Perth, WA 6009, Australia
Dunlop J.S.:
Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh EH9 3HJ, United Kingdom
Fritz J.:
Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281 S9, B-9000 Gent, Belgium
Hill D.T.:
SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews KY16 9SS, United Kingdom
Hopkins A.:
Anglo-Australian Observatory, PO Box 296, Epping, NSW 1710, Australia
Hopwood R.:
Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes MK7 6AA, United Kingdom
Ibar E.:
UK Astronomy Technology Centre, Royal Observatory, Edinburgh EH9 3HJ, United Kingdom
Ivison R.J.:
Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh EH9 3HJ, United Kingdom
UK Astronomy Technology Centre, Royal Observatory, Edinburgh EH9 3HJ, United Kingdom
Jones D.H.:
Anglo-Australian Observatory, PO Box 296, Epping, NSW 1710, Australia
Kelvin L.:
SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews KY16 9SS, United Kingdom
Leeuw L.:
SETI Institute, 515 N. Whisman Avenue, Mountain View, CA 94043, United States
Liske J.:
European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748 Garching bei München, Germany
Loveday J.:
Astronomy Centre, University of Sussex, Falmer, Brighton BN1 9QH, United Kingdom
Madore B.F.:
Observatories of the Carnegie Institution, 813 Santa Barbera St., Pasadena, CA 91101, United States
Norberg P.:
Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh EH9 3HJ, United Kingdom
Panuzzo P.:
CEA, Laboratoire AIM, Irfu/SAp, Orme des Merisiers, F-91191 Gif-sur-Yvette, France
Pascale E.:
School of Physics and Astronomy, Cardiff University, Queen Buildings, The Parade, Cardiff CF24 3AA, United Kingdom
Pohlen M.:
School of Physics and Astronomy, Cardiff University, Queen Buildings, The Parade, Cardiff CF24 3AA, United Kingdom
Popescu C.C.:
Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE, United Kingdom
Prescott M.:
Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD, United Kingdom
Robotham A.:
SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews KY16 9SS, United Kingdom
Rodighiero G.:
INAF - Osservatorio Astronomico di Padova, Vicolo Osservatorio 5, I-35122 Padova, Italy
Scott D.:
Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada
Seibert M.:
Observatories of the Carnegie Institution, 813 Santa Barbera St., Pasadena, CA 91101, United States
Sharp R.:
Anglo-Australian Observatory, PO Box 296, Epping, NSW 1710, Australia
Temi P.:
AstrophysicsBranch, NASA Ames Research Center, Mail Stop 2456, Moffett Field, CA 94035, United States
Tuffs R.J.:
Max Planck Institut für Kernphysik (MPIK), Saupfercheckweg, 69117 Heidelberg, Germany
van der Werf P.:
Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh EH9 3HJ, United Kingdom
Leiden Observatory, Leiden University, PO Box 9513, NL - 2300 RA Leiden, Netherlands
van Kampen E.:
European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748 Garching bei München, Germany
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