WMAP Theoretical LCDM Power Spectra
FITS Header Information

The data made available through this page has been updated. The most recent version of this data may be accessed through /product/map/current/

Primary Header

SIMPLE  =                    T / Written by IDL:  Wed Jul 16 14:03:27 2003      
BITPIX  =                   16 / Number of bits per data pixel                  
NAXIS   =                    0 / Number of data axes                            
EXTEND  =                    T / FITS data may contain extensions               
DATE    = '2003-07-16'         / Creation date (CCYY-MM-DD) of FITS header      
COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy  
COMMENT and Astrophysics', volume 376, page 359; bibcode 2001A&A...376..359H    
COMMENT                                                                         
COMMENT Wilkinson Microwave Anisotropy Probe (WMAP) year 1 data release.        
COMMENT WMAP Theoretical Power Spectrum based on an LCDM model with a           
COMMENT  scale-dependent (running) spectral index which best fits the           
COMMENT  dataset composed of WMAP, CBI and ACBAR CMB data combined with         
COMMENT  2dF and Ly-alpha data.                                                 
COMMENT The cosmological parameters used to generate this model are             
COMMENT  listed below. For a more detailed explanation of parameters,           
COMMENT  see Spergel et al. (2003, astro-ph/0302209). The values below          
COMMENT  are the maximum likelihood values from the full N-dimensional          
COMMENT  likelihood analysis and may differ slightly from the                   
COMMENT  marginalized values quoted in Spergel et al.:                          
COMMENT      omega_b h^2   =  0.02262                                           
COMMENT      omega_cdm h^2 =  0.10861                                           
COMMENT      n(k=0.05)     =  1.04173                                           
COMMENT      exp(-2tau)    =  0.69879                                           
COMMENT      dn/dlnk       = -0.01618                                           
COMMENT      amp(k=0.05)   =  0.86746                                           
COMMENT      h             =  0.73070                                           
COMMENT                                                                         
COMMENT Note that EE data were not included in the model fits, so the           
COMMENT EE spectrum should be regarded as a prediction.                         
COMMENT                                                                         
COMMENT This FITS file was generated from the Version 1 (April 2003) ASCII      
COMMENT data file in order to provide a format compatible with SYNFAST          
COMMENT input. See the HEALPix homepage (http://www.eso.org.science/healpix)    
COMMENT for details about SYNFAST.                                              
COMMENT                                                                         
REFERENC= 'WMAP Explanatory Supplement: http://lambda.gsfc.nasa.gov/'           
END                                                                             

Extension Header #1

XTENSION= 'TABLE   '           / ASCII table extension                          
BITPIX  =                    8 / 8 bit bytes                                    
NAXIS   =                    2 / 2-dimensional ASCII table                      
NAXIS1  =                   63 / # of characters in a row                       
NAXIS2  =                 1801 / # of rows in file                              
PCOUNT  =                    0 / Size of special data area                      
GCOUNT  =                    1 / one data group (required keyword)              
TFIELDS =                    4 / # of fields in file                            
COMMENT -----------------------------------------------                         
EXTNAME = 'POWER SPECTRUM'     / Power spectrum : C(l)                          
COMMENT -----------------------------------------------                         
TTYPE1  = 'TEMPERATURE'        / Temperature C(l)                               
TBCOL1  =                    1 /beginning column of field                       
TFORM1  = 'E15.7   '           /                                                
TTYPE2  = 'GRADIENT'           / Gradient (=ELECTRIC) polarisation C(l)         
TBCOL2  =                   17 /beginning column of field                       
TFORM2  = 'E15.7   '           /                                                
TTYPE3  = 'CURL    '           / Curl (=MAGNETIC) polarisation C(l)             
TBCOL3  =                   33 /beginning column of field                       
TFORM3  = 'E15.7   '           /                                                
TTYPE4  = 'G-T     '           / Gradient-Temperature cross terms               
TBCOL4  =                   49 /beginning column of field                       
TFORM4  = 'E15.7   '           /                                                
END                                                                             

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