http://arxiv.org/abs/1812.09348
We investigate a correlation between the Planck’s CMB temperature map and statistics based on the space density of quasars in the SDSS catalogue. A positive signal at $3\,\sigma$ is found. Amplitude of the correlation indicates that the rms of temperature fluctuations associated with the quasars distributed between $1500$ and $3000$ Mpc likely exceed $11-12\,\mu$K. The calculations are not related with any particular structures like supervoids in the quasars distribution. Although, the estimates are subject to sizable uncertainties, the signal seems to exceed the predictions of the Integrated Sachs-Wolfe effect for the standard $\Lambda$CMB cosmology.
A. Sołtan
Thu, 27 Dec 18
51/80
Comments: 21 pages, 13 figures, Appendix
You must be logged in to post a comment.