Abstract
We constrain the deviation of adiabatic evolution of the universe using the data on the cosmic microwave background (CMB) temperature anisotropies measured by the Planck satellite and a sample of 481 X-ray selected clusters with spectroscopically measured redshifts. To avoid antenna beam effects, we bring all of the maps to the same resolution. We use a CMB template to subtract the cosmological signal while preserving the Thermal Sunyaev–Zeldovich (TSZ) anisotropies; next, we remove galactic foreground emissions around each cluster and we mask out all known point sources. If the CMB blackbody temperature scales with redshift as T(z) = T0(1 +z)1-α, we constrain deviations of adiabatic evolution to be α = −0.007 ± 0.013, consistent with the temperature-redshift relation of the standard cosmological model. This result could suffer from a potential bias δα associated with the CMB template. We quantify it to be |δα| ≼ 0.02 , with the same sign as the measured value of α. Our result is free from those biases associated with using TSZ selected clusters; it represents the best constraint to date of the temperature-redshift relation of the Big Bang model using only CMB data, confirming previous results.
Document Type
Article
Publication Date
7-27-2015
Digital Object Identifier (DOI)
https://doi.org/10.1088/0004-637X/808/2/128
Funding Information
This work was done in the context of the FCT/MICINN cooperation grant “Cosmology and Fundamental Physics with the Sunyaev–Zel’dovich Effect” AIC10- D-000443, with additional support from projects FIS2012- 30926 from the Ministerio de Educación y Ciencia, Spain and PTDC/FIS/111725/2009 from FCT, Portugal. C.M. is also supported by a FCT Research Professorship, contract reference IF/00064/2012, funded by FCT/MCTES (Portugal) and POPH/ FSE (EC).
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Repository Citation
de Martino, I.; Génova-Santos, R.; Atrio-Barandela, F.; Ebeling, H.; Kashlinsky, A.; Kocevski, Dale D.; and Martins, C. J. A. P., "Constraining the Redshift Evolution of the Cosmic Microwave Background Blackbody Temperature with Plank Data" (2015). Physics and Astronomy Faculty Publications. 364.
https://uknowledge.uky.edu/physastron_facpub/364
Notes/Citation Information
Published in The Astrophysical Journal, v. 808, no. 2, 128, p. 1-10.
© 2015. The American Astronomical Society. All rights reserved.
The copyright holders have granted the permission for posting the article here.