Planck early results. XI. Calibration of the local galaxy cluster Sunyaev-Zeldovich scaling relations

We present precise Sunyaev-Zeldovich (SZ) effect measurements in the direction of 62 nearby galaxy clusters (z < 0.5) detected at high signal-to-noise in the first Planck all-sky data set. The sample spans approximately a decade in total mass, 2 10<SUP>14</SUP> M<SUB>&sun;</SUB> < M<SUB>500</SUB> < 2 10<SUP>15</SUP> M<SUB>&sun;</SUB>, where M<SUB>500</SUB> is the mass corresponding to a total density contrast of 500. Combining these high quality Planck measurements with deep XMM-Newton X-ray data, we investigate the relations between D<SUB>A</SUB><SUP>2</SUP> Y<SUB>500</SUB>, the integrated Compton parameter due to the SZ effect, and the X-ray-derived gas mass M<SUB>g,500</SUB>, temperature T<SUB>X</SUB>, luminosity L<SUB>X,500</SUB>, SZ signal analogue Y<SUB>X,500</SUB> = M<SUB>g,500</SUB> T<SUB>X</SUB>, and total mass M<SUB>500</SUB>. After correction for the effect of selection bias on the scaling relations, we find results that are in excellent agreement with both X-ray predictions and recently-published ground-based data derived from smaller samples. The present data yield an exceptionally robust, high-quality local reference, and illustrate Planck's unique capabilities for all-sky statistical studies of galaxy clusters. Corresponding author G. W. Pratt, e-mail gabriel.pratt@cea.fr