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The XXL Survey. V. Detection of the Sunyaev-Zel'Dovich Effect of the Redshift 1.9 Galaxy Cluster XLSSU J021744.1-034536 With Carma

Mantz, A. B. (author)
University of Chicago
Abdulla, Z. (author)
University of Chicago
Carlstrom, J. E. (author)
University of Chicago
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Greer, C. H. (author)
University of Arizona
Leitch, E. M. (author)
University of Chicago
Marrone, D. P. (author)
University of Arizona
Muchovej, S. (author)
California Institute of Technology (Caltech)
Adami, C. (author)
Laboratoire d'Astrophysique de Marseille
Birkinshaw, M. (author)
University of Bristol
Bremer, M. (author)
University of Bristol
Clerc, N. (author)
Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Giles, P. (author)
University of Bristol
Horellou, Cathy, 1967 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Maughan, B. (author)
University of Bristol
Pacaud, F. (author)
Pierre, M. (author)
Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA),The French Alternative Energies and Atomic Energy Commission (CEA)
Willis, J. (author)
University of Victoria
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 (creator_code:org_t)
2014-10-07
2014
English.
In: Astrophysical Journal. - : American Astronomical Society. - 1538-4357 .- 0004-637X. ; 794:2
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • We report the detection of the Sunyaev-Zel'dovich (SZ) effect of galaxy cluster XLSSU J021744.1-034536, using 30 GHz Combined Array for Research in Millimeter-wave Astronomy (CARMA) data. This cluster was discovered via its extended X-ray emission in the XMM-Newton Large Scale Structure survey, the precursor to the XXL survey. It has a photometrically determined redshift z = 1.91(-0.21)(+0.19), making it among the most distant clusters known, and nominally the most distant for which the SZ effect has been measured. The spherically integrated Comptonization is Y-500 = (3.0 +/- 0.4) x 10(-12), a measurement that is relatively insensitive to assumptions regarding the size and redshift of the cluster, as well as the background cosmology. Using a variety of locally calibrated cluster scaling relations extrapolated to z similar to 2, we estimate a mass M-500 similar to (1-2) x 10(14) M-circle dot from the X-ray flux and SZ signal. The measured properties of this cluster are in good agreement with the extrapolation of an X-ray luminosity-SZ effect scaling relation calibrated from clusters discovered by the South Pole Telescope at higher masses and lower redshifts. The full XXL-CARMA sample will provide a more complete, multi-wavelength census of distant clusters in order to robustly extend the calibration of cluster scaling relations to these high redshifts.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

galaxies: clusters: individual (XLSSU J021744.1-034536)
galaxies: clusters: intracluster medium
X-rays: galaxies: clusters

Publication and Content Type

art (subject category)
ref (subject category)

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