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Limits on Hot Intracluster Gas Contributions to the Tenerife Temperature Anisotropy Map

J. A. Rubino-Martin·F. Atrio-Barandela·C. Hernandez-Monteagudo
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Abstract

We limit the contribution of the hot intracluster gas, by means of the Sunyaev-Zel'dovich effect, to the temperature anisotropies measured by the Tenerife experiment. The data is cross-correlated with maps generated from the ACO cluster catalogue, the ROSAT PSPC catalogue of clusters of galaxies, a catalogue of superclusters and the HEAO 1 A-1 map of X-ray sources. There is no evidence of contamination by such sources at an rms level of $\sim 8μ$K at 99% confidence level at $5^o$ angular resolution. We place an upper limit on the mean Comptonization parameter of $ y \le 1.5\times 10^{-6}$ at the same level of confidence. These limits are slightly more restrictive than those previously found by a similar analysis on the COBE/DMR data and indicate that most of the signal measured by Tenerife is cosmological.

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J. A. Rubino-Martin, F. Atrio-Barandela, C. Hernandez-Monteagudo. 2000-02-27. Limits on Hot Intracluster Gas Contributions to the Tenerife Temperature Anisotropy Map. https://doi.org/10.1086/309119

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