Sir Fred Hoyle, born in 1915 was a famous astronomer, mathematician, and author. The scientist was the first to coin the term "Big Bang" for the now prevailing theory of the early development of the universe in 1949, even though he happened to be a strong opponent of this theory.
Results derived from data obtained by Wilkinson Microwave Anisotropy Probe (WMAP) are extensively used in many areas of physics. It has been claimed recently that the published WMAP calibrated data and maps might be in question because of an undocumented timing offset in the official processing pipeline [The origin of the WMAP quadrupole, Hao Liu, Shao-Lin Xiong, Ti-Pei Li]. This timing error was shown to induce a quadrupole pattern in the final maps that is very similar to the officially published quadrupole mode. It is clear that a timing offset at the map-making stage will strongly affect the quadrupole scale, since the map-making in [The origin of the WMAP quadrupole, Hao Liu, Shao-Lin Xiong, Ti-Pei Li] was based on the official WMAP calibrated TOD. But there is also a possibility that the calibration process itself could be affected as well and we test this here. In this work we approximately reproduce the original dipole-based iterative calibration procedure to produce a calibrated data set starting from raw uncalibrated data. Using the calibrated data we generate a set of sky maps that we compare to the officially released maps and note some differences between our and official results. We also investigate the effects of various timing offsets introduced in the calibration stage on the final products. We find that a timing offset in the calibration process has little effect on the calibrated data and induced quadrupole.
"Relativity is just science's way of flip-flopping. Space or time, mass or energy? Which is it, pick a side [...] And I'm sorry, E equals m c squared? C does not stand for the speed of light, c is for cookie."
E. Komatsu, J. Dunkley, M. Nolta, C. Bennett, B. Gold, G. Hinshaw, N. Jarosik, D. Larson, M. Limon, L. Page und 9 andere Autor(en). (2008)cite arxiv:0803.0547
Comment: 52 pages, 21 figures, accepted for publication in ApJS. (v2)
References added. Cosmological parameters updated with the latest union
supernova compilation (Kowalski et al. arXiv:0804.4142).
Y. Sekino, und L. Susskind. (2009)cite arxiv:0908.3844
Comment: 71 pages, 16 figures. A preliminary version of the ideas in this
paper was reported in arXiv:0710.1129.
J. Uzan. (2016)cite arxiv:1606.06112Comment: 69 pages, introductory lecture notes from the Poincaré seminar XX (2015) and Les Houches school "Cosmology after Planck: what is next?" (2016).
K. Schalm, G. Shiu, und J. van der Schaar. (2004)cite arxiv:hep-th/0401164
Comment: LaTeX plus axodraw figures. v2: minor corrections; refs added. JHEP
style: 34 pages + 18 pages appendix.
D. Lyth, und Y. Rodriguez. (2005)cite arxiv:astro-ph/0504045
Comment: Revtex Latex file. 4 pages, no figures. v4: minor changes, typos
corrected, references added and updated. Version published in Physical Review
Letters.
F. Bernardeau, T. Brunier, und J. Uzan. (2006)cite arxiv:astro-ph/0604200
Comment: 8 pages with 3 eps figures. To appear in Proceedings of the Albert
Einstein Century International Conference, UNESCO, Paris, France, 18-22 July
2005.
W. Kinney, und K. Tzirakis. (2007)cite arxiv:0712.2043
Comment: 10 pages, LaTeX; V2: version submitted to PRD. References added,
minor error in text corrected.
D. Lyth, und Y. Rodriguez. (2005)cite arxiv:astro-ph/0502578
Comment: Latex file in Revtex style. 13 pages, 1 figure. v2: minor changes.
Discussion in Subsection VI-A enlarged. References added. Conclusions
unchanged. v3: minor typographic changes. Correlated and uncorrelated \chi^2
non-gaussianity concepts and consequences introduced. Section VI-A enlarged.
Small change in Table I. References updated and added. Conclusions unchanged.
Version to appear in Physical Review D.