http://lambda.gsfc.nasa.gov has everything you need.S.P.P said:I'd like to compare some models of mine against results from WMAP. Is there anywhere I can get the data, l(l+1) Cl / 2pi as a function of l? I see plenty of images of the TT, TE power spectra with error bars on them from WMAP, but can't seem to find the data. Ideally I'd like to plot my models on the same graph as the WMAP model.
No problem ;) If you have any questions on the analysis let me know. This is actually my current field of study :)S.P.P said:Thanks :)
The "WMAP Data for l(l+1)Cl/2pi vs. l Plotting" graph is used to plot the angular power spectrum of the cosmic microwave background (CMB) radiation, as measured by the Wilkinson Microwave Anisotropy Probe (WMAP) satellite. It shows the variation in temperature fluctuations of the CMB at different angular scales, or multipoles (l). This data is important for understanding the structure and evolution of the universe.
The data for the "WMAP Data for l(l+1)Cl/2pi vs. l Plotting" graph is collected by the WMAP satellite, which measures the temperature of the CMB at different points in the sky. This data is then analyzed and converted into a power spectrum, which represents the amplitude of temperature fluctuations at different angular scales.
The l(l+1)Cl/2pi vs. l plot is significant in cosmology because it helps us understand the distribution of matter and energy in the universe. The slope of the plot, known as the "tilt," can give us information about the inflationary period of the universe and the density of matter and energy. It also allows us to test different cosmological models and theories.
The "WMAP Data for l(l+1)Cl/2pi vs. l Plotting" graph provides strong evidence for the Big Bang theory. It shows the presence of temperature fluctuations in the CMB, which are predicted by the theory. These fluctuations are believed to be remnants of density variations in the early universe, which eventually gave rise to the large-scale structures we see today. The overall shape and distribution of these fluctuations also match the predictions of the Big Bang theory.
The "WMAP Data for l(l+1)Cl/2pi vs. l Plotting" graph is no longer being updated as the WMAP satellite mission ended in 2010. However, the data is still used in current cosmological research and is often compared to more recent data collected by other satellites, such as the Planck satellite. Newer versions of the plot may be created as new data becomes available and our understanding of the universe evolves.