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  • Bender, A. N.University of Colorado at Boulder,McGill University (author)

Galaxy cluster scaling relations measured with APEX-SZ

  • Article/chapterEnglish2016

Publisher, publication year, extent ...

  • 2016-05-16
  • Oxford University Press (OUP),2016
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:158e8303-0f87-4af5-9ed9-da4b3f09b4dd
  • https://doi.org/10.1093/mnras/stw1158DOI
  • https://research.chalmers.se/publication/242723URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • We present thermal Sunyaev-Zel'dovich effect (SZE) measurements for 42 galaxy clusters observed at 150 GHz with the APEX-SZ experiment. For each cluster, we model the pressure profile and calculate the integrated Comptonization Y to estimate the total thermal energy of the intraclustermedium (ICM). We compare the measured Y values to X-ray observables of the ICM from the literature (cluster gas mass M-gas, temperature T-X, and Y-X = MgasTX) that relate to total cluster mass. We measure power-law scaling relations, including an intrinsic scatter, between the SZE and X-ray observables for three subsamples within the set of 42 clusters that have uniform X-ray analysis in the literature. We observe that differences between these X-ray analyses introduce significant variance into the measured scaling relations, particularly affecting the normalization. For all three subsamples, we find results consistent with a selfsimilarmodel of cluster evolution dominated by gravitational effects. Comparing to predictions from numerical simulations, these scaling relations prefer models that include cooling and feedback in the ICM. Lastly, we measure an intrinsic scatter of similar to 28 per cent in the Y - Y-X scaling relation for all three subsamples.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Kennedy, J.McGill University (author)
  • Ade, P.,Cardiff University (author)
  • Basu, K.Universität Bonn,University of Bonn (author)
  • Bertoldi, F.Universität Bonn,University of Bonn (author)
  • Burkutean, S.Universität Bonn,University of Bonn (author)
  • Clarke, John,1942University of California,Lawrence Berkeley National Laboratory(Swepub:cth)clarke (author)
  • Dahlin, Daniel,1980Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)f00dajo (author)
  • Dobbs, M.McGill University (author)
  • Ferrusca, D.Instituto Nacional de Astrofísica, Óptica y Electrońica (INAOE),National Institute of Astrophysics, Optics and Electronics (INAOE) (author)
  • Flanigan, D.University of California (author)
  • Halverson, N. W.University of Colorado at Boulder (author)
  • Holzapfel, W. L.University of California (author)
  • Horellou, Cathy,1967Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)horellou (author)
  • Johnson, B. R.Columbia University in the City of New York (author)
  • Kermish, Z. D.Princeton University (author)
  • Klein, M.Universität Bonn,University of Bonn (author)
  • Kneissl, R.European Southern Observatory Santiago,Atacama Large Millimeter-submillimeter Array (ALMA) (author)
  • Lanting, T.McGill University (author)
  • Lee, A. T.Lawrence Berkeley National Laboratory,University of California (author)
  • Mehl, J.University of California (author)
  • Menten, K. M.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG) (author)
  • Muders, D.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG) (author)
  • Nagarajan, A.Universität Bonn,University of Bonn (author)
  • Pacaud, F.Universität Bonn,University of Bonn (author)
  • Reichardt, C. L.University of California (author)
  • Richards, P. L.University of California (author)
  • Schaaf, R.Universität Bonn,University of Bonn (author)
  • Schwan, D.University of California (author)
  • Sommer, M. W.Universität Bonn,University of Bonn (author)
  • Spieler, H.Lawrence Berkeley National Laboratory (author)
  • Tucker, C.Cardiff University (author)
  • Westbrook, B.University of California (author)
  • University of Colorado at BoulderMcGill University (creator_code:org_t)

Related titles

  • In:Monthly Notices of the Royal Astronomical Society: Oxford University Press (OUP)460:4, s. 3432-34460035-87111365-2966

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