Fits File Columns

GALEX- columns

UV-GALEX Format
Sample
EM
Procedure
moreUV-GALEX.htmlGALEX_sample.htmlEM-Algorithm.htmlSTEPS.htmlshapeimage_2_link_0shapeimage_2_link_1shapeimage_2_link_2shapeimage_2_link_3shapeimage_2_link_4
 

TILE_GALEX,  FUV,errFUV , NUV, errNUV  :    GALEX Tile name and  photometry GALEX or EM


  **  FUV or NUV_MASK :    Tell  about the nature and quality of the photometry. 

             NUV_MASK=0      :   Analyzed by EM           :  GOOD SOURCES 

             NUV_MASK=1      :   Not analyzed by EM     :  MUST  BE EXCLUDED

             NUV_MASK=2      :   EM hand made masks  :  SHOULD BE EXCLUDED 

             NUV_MASK=3      :   2+1                                :  MUST  BE EXCLUDED

             NUV_MASK=4      :   CFHTLS i band masks :  OPTICAL “RISKY” AREA  (bright stars,...)

             NUV_MASK=5,6,7: 4+1 & 4+2 & 4+2+1       : MUST  BE EXCLUDED

        

  **  FUV or NUV_FLAG   : based on the SExtractor ellipses of bright GALEX sources to investigate

                                                if crowding affect the photometry.

             NUV_FLAG=0  :  EM phot.         & outside ellipses of bright sources

             NUV_FLAG=1   : GALEX phot. & with no neighbors inside ellipse

             NUV_FLAG=2   : EM phot.         & inside  ellipses of bright sources

            NUV_FLAG=3   : GALEX phot. & with neighbors inside ellipse


  **  FUV or  NUV_NFLAG :  Flux contribution of neighbors  wrt  the bright GALEX sources (NUV<21.75)

                                                  Both the bright source and the neighbors will share the same NFLAG.

             N1 = Number of  neighbors with             Fneigh/Fgalex < 1/10

            N2 = Number of  neighbors with 1/10 < Fneigh/Fgalex < 1/2

             N3 =       "        "                            1/2  < Fneigh/Fgalex < 2

             N4 =       "        "                                 2 < Fneigh/Fgalex 

           Note that  Nx<10 so that NFLAG = N1+N2*10+N3*100+N4*1000     

ID_ZPHOT , TILE_ZPHOT : Ident  ZPHOT catalog and Tile number 

INOUT                                    : 0=IN OVERLAP    1=OUT OVERLAP   from ZPHOT cat.

ZPHOT, ZPDF                       : Zphot values

CHI_GAL, CHI_STAR, CHI_QSO, Z_QSO :   Chi2   from  Zphot  analysis

CFHTLS - columns

ID_ORIG ,  TILE   :    Ident  and Tile number 

RA , Dec                  : CFHTLS coordinates

R2, A_IMAGE, B_IMAGE, THETA_IMAGE, KRON_RADIUS:  Half light radius and shape parameters

U,G,R,I,Z                : magnitudes corrected for galactic extinction and with offsets from photo-z catalog 

errU,G,R,I,Z           :  mag errors

EB_V                       : Galactic EB_V

CLASS_STAR , FLAG_U,G,R,I,Z :  SExtractor class_star and optical Flag in individual bands

FLAG                      :   0= Gal, 1=Star, 8=Saturated

Other data - columns

ID_ORIG ,  TILE   :    Ident  and Tile number 

RA , Dec                  : CFHTLS coordinates

R2, A_IMAGE, B_IMAGE, THETA_IMAGE, KRON_RADIUS:  Half light radius and shape parameters

U,G,R,I,Z                : magnitudes corrected for galactic extinction and with offsets from photo-z catalog 

errU,G,R,I,Z           :  mag errors

[ZSPEC, ZFLAG, RA, DEC]_VVDS :  Zspectro VVDS   and coordinates

[ZSPEC, ZFLAG, RA, DEC]_VIP     :  Zspectro VIPERS and coordinates

[J,errJ, K,errK, RA.,DEC]_UK          :  UKIDSS  J,K  AB magnitudes and coordinates