SIMBAD references

2010ApJ...716.1118P - Astrophys. J., 716, 1118-1135 (2010/June-3)

Sunyaev-Zel'dovich cluster profiles measured with the south pole telescope.

PLAGGE T., BENSON B.A., ADE P.A.R., AIRD K.A., BLEEM L.E., CARLSTROM J.E., CHANG C.L., CHO H.-M., CRAWFORD T.M., CRITES A.T., DE HAAN T., DOBBS M.A., GEORGE E.M., HALL N.R., HALVERSON N.W., HOLDER G.P., HOLZAPFEL W.L., HRUBES J.D., JOY M., KEISLER R., KNOX L., LEE A.T., LEITCH E.M., LUEKER M., MARRONE D., McMAHON J.J., MEHL J., MEYER S.S., MOHR J.J., MONTROY T.E., PADIN S., PRYKE C., REICHARDT C.L., RUHL J.E., SCHAFFER K.K., SHAW L., SHIROKOFF E., SPIELER H.G., STALDER B., STANISZEWSKI Z., STARK A.A., VANDERLINDE K., VIEIRA J.D., WILLIAMSON R. and ZAHN O.

Abstract (from CDS):

We present Sunyaev-Zel'dovich (SZ) measurements of 15 massive X-ray-selected galaxy clusters obtained with the South Pole Telescope (SPT). The SZ cluster signals are measured at 150 GHz, and concurrent 220 GHz data are used to reduce astrophysical contamination. Radial profiles are computed using a technique that takes into account the effects of the beams and filtering. In several clusters, significant SZ decrements are detected out to a substantial fraction of the virial radius. The profiles are fit to the β-model and to a generalized Navarro-Frenk-White (NFW) pressure profile, and are scaled and stacked to probe their average behavior. We find model parameters that are consistent with previous studies: β = 0.86 and rcore/r500 = 0.20 for the β-model, and (αn, βn, γn, c500) = (1.0, 5.5, 0.5, 1.0) for the generalized NFW model. Both models fit the SPT data comparably well, and both are consistent with the average SZ profile out to beyond r500. The integrated Compton-y parameter YSZ is computed for each cluster using both model-dependent and model-independent techniques, and the results are compared to X-ray estimates of cluster parameters. We find that YSZ scales with YXand gas mass with low scatter. Since these observables have been found to scale with total mass, our results point to a tight mass-observable relation for the SPT cluster survey.

Abstract Copyright:

Journal keyword(s): cosmic background radiation - cosmology: observations - galaxies: clusters: general - galaxies: clusters: intracluster medium

Status at CDS:  

CDS comments: RXC J2011.3-4037 is a misprint for RXC J2011.3-5725, and RXC J0532.9-3927 is a misprint either for RXC J0528.9-3927 or for RXC J0532.9-3701.

Simbad objects: 25

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2020.04.01-22:03:56

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