Autor: |
Noble, A. G., Geach, J. E., van Engelen, A. J., Webb, T. M. A., Coppin, K. E. K., Delahaye, A., Gilbank, D. G., Gladders, M. D., Ivison, R. J., Omori, Y., Yee, H. K. C. |
Rok vydání: |
2013 |
Předmět: |
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Druh dokumentu: |
Working Paper |
DOI: |
10.1093/mnrasl/slt108 |
Popis: |
We present a wide-field (30' diameter) 850um SCUBA-2 map of the spectacular three-component merging supercluster, RCS 231953+00, at z=0.9. The brightest submillimetre galaxy (SMG) in the field (S_850=12mJy) is within 30" of one of the cluster cores (RCS 2319-C), and is likely to be a more distant, lensed galaxy. Interestingly, the wider field around RCS 2319-C reveals a local overdensity of SMGs, exceeding the average source density by a factor of 4.5, with a <1 per cent chance of being found in a random field. Utilizing Herschel-SPIRE observations, we find three of these SMGs have similar submillimetre colours. We fit their observed 250-850um spectral energy distributions to estimate their redshift, yielding 2.5Comment: 6 pages, 4 colour figures; accepted for publication in MNRAS Letters |
Databáze: |
arXiv |
Externí odkaz: |
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