Matches in SemOpenAlex for { <https://semopenalex.org/work/W2973993886> ?p ?o ?g. }
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- W2973993886 abstract "We cross-correlate maps of the thermal Sunyaev-Zeldovich (tSZ) Compton-$y$ parameter published by Planck with the projected distribution of galaxies in a set of low-redshift tomographic bins. We use the nearly full-sky 2MASS Photometric Redshift and WISE $times$ SuperCOSMOS public catalogues, covering the redshift range $zlesssim0.4$. Our measurements allow us to place constraints on the redshift dependence of the mass-observable relation for tSZ cluster count analyses in terms of the so-called 'hydrostatic mass bias' parameter $1-b_{rm H}$. These results can also be interpreted as measurements of the bias-weighted average gas pressure $langle bP_erangle$ as a function of redshift, a quantity that can be related to the thermodynamics of gas inside haloes and used to constrain energy injection processes. We measure $1-b_{rm H}$ with $sim6%$ precision in 6 equispaced redshift bins, and find no evidence for a redshift-dependent mass bias parameter, in agreement with previous analyses. Our mean value of $1-b_{rm H} = 0.75pm0.03$ is also in good agreement with the one estimated by the joint analysis of Planck cluster counts and CMB anisotropies calibrated with CMB lensing. Our measurements of $langle bP_erangle$, at the level of $sim10%$ in each bin, are the most stringent constraints on the redshift dependence of this parameter to date, and agree well both with previous measurements and with theoretical expectations from shock-heating models." @default.
- W2973993886 created "2019-09-26" @default.
- W2973993886 creator A5011674330 @default.
- W2973993886 creator A5029121397 @default.
- W2973993886 creator A5045208440 @default.
- W2973993886 creator A5057299715 @default.
- W2973993886 date "2019-12-19" @default.
- W2973993886 modified "2023-10-12" @default.
- W2973993886 title "Tomographic measurement of the intergalactic gas pressure through galaxy–tSZ cross-correlations" @default.
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