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The environments of...
The environments of luminous radio-WISE selected infrared galaxiess
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- Penney, J. I. (author)
- University Of Leicester
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- Blain, A. W. (author)
- University Of Leicester
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- Wylezalek, D. (author)
- Johns Hopkins University
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- Hatch, N. A. (author)
- University Of Nottingham
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- Lonsdale, C. (author)
- National Radio Astronomy Observatory
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- Kimball, A. (author)
- National Radio Astronomy Observatory Socorro
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- Assef, R. J. (author)
- Universidad Diego Portales,Diego Portales University
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- Condon, J. J. (author)
- National Radio Astronomy Observatory
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- Eisenhardt, P. R. M. (author)
- California Institute of Technology (Caltech)
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- Jones, Suzy, 1988 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kim, M. (author)
- Korea Astronomy and Space Science Institute,Kyungpook National University
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- Lacy, M. (author)
- National Radio Astronomy Observatory
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- Muldrew, S. I. (author)
- University Of Leicester
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- Petty, S. (author)
- NorthWest Research Associates, Inc.
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- Sajina, A. (author)
- Tufts University
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- Silva, A. (author)
- Tufts University,National Institutes of Natural Sciences (NINS)
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- Stern, D. (author)
- California Institute of Technology (Caltech)
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- Diaz-Santos, T. (author)
- Universidad Diego Portales,Diego Portales University
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- Tsai, C-W. (author)
- University of California at Los Angeles (UCLA)
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- Wu, J. (author)
- Chinese Academy of Sciences,University of California at Los Angeles (UCLA)
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(creator_code:org_t)
- 2018-11-18
- 2019
- English.
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In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 483:1, s. 514-528
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Abstract
Subject headings
Close
- We have observed the environments of a population of 33 heavily dust obscured, ultraluminous, high-redshift galaxies, selected using Wide-Field Infrared Survey Explorer (WISE) and NRAO 1.4 GHz VLA Sky Survey atz > 1.3 with the infrared array camera on the Spitzer Space Telescope over 5.12 arcmin x 5.12 arcmin fields. Colour selections are used to quantify any potential overdensities of companion galaxies in these fields. We find no significant excess of galaxies with the standard colour selection for IRAC colours of [3.6] - [4.5] > -0.1 consistent with galaxies atz > 1.3 across the whole fields with respect to wide-area Spitzer comparison fields, but there is a > 2 sigma statistical excess within 0.25 arcmin of the central radio-WISE galaxy. Using a colour selection of [3.6] - [4.5] > 0.4, 0.5 magnitudes redder than the standard method of selecting galaxies atz > 1.3, we find a significant overdensity, in which 76 per cent (33 per cent) of the 33 fields have a surface density greater than the 3 sigma (5 sigma) level. There is a statistical excess of these redder galaxies within 0.5 arcmin, rising to a central peak similar to 2-4 times the average density. This implies that these galaxies are statistically linked to the radio-WISE selected galaxy, indicating similar structures to those traced by red galaxies around radio-loud active galactic nuclei.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- galaxies: evolution
- galaxies: active
- infrared: galaxies
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Penney, J. I.
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Blain, A. W.
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Wylezalek, D.
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Hatch, N. A.
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Lonsdale, C.
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Kimball, A.
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show more...
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Assef, R. J.
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Condon, J. J.
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Eisenhardt, P. R ...
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Jones, Suzy, 198 ...
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Kim, M.
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Lacy, M.
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Muldrew, S. I.
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Petty, S.
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Sajina, A.
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Silva, A.
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Stern, D.
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Diaz-Santos, T.
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Tsai, C-W.
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Wu, J.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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Monthly Notices ...
- By the university
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Chalmers University of Technology