VSA Data Products at LAMBDA

The power spectrum is presented in Dickinson et al.(2004)
and cosmological interpretation in Rebolo et. al. (2004)

Results Released February 2004
Download Page
Description No. Of
Power Spectrum and All Supporting Data The full VSA data set as a single tar file. Includes the following individual files. 1 file 164 KB
Root File with Power Spectrum VSAF.dataset - a self-explanatory root file containing a header and the angular power spectrum to l=1400. There is no beam uncertainty for VSA data and the overall calibration uncertainty is 3%. After the header, there are 16 data points corresponding to the peak of the power spectrum likelihood. 1 file 858 B
X-Factors VSAF_x.dat - the x-factors for the VSA data set (as explained in astro-ph/9808264, for example). 1 file 224 B
Hessian Matrix VSAF_mat.dat - the Hessian matrix of the VSA data set in the log-offset variables. 16^2=256 numbers are given. Because the matrix is symmetric, the order does not matter. More... 1 file 1.7 KB
Windows Functions - Individual VSAF* - 16 files with the window functions corresponding to each band power measurement. Each window file has two columns, the l value and the corresponding weight. 16 Files ~10 KB each
Windows Functions - Tar File The 16 individual windows functions as a tar file. 1 file 153 KB

Back To Suborbital CMB Experiment Page

A service of the HEASARC and of the Astrophysics Science Division at NASA/GSFC
Goddard Space Flight Center, National Aeronautics and Space Administration
HEASARC Director: Dr. Alan P. Smale
LAMBDA Director: Dr. Eric R. Switzer
NASA Official: Dr. Eric R. Switzer
Web Curator: Mr. Michael R. Greason