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Home All issues Volume 497 / No 3 (April III 2009) A&A, 497 3 (2009) 667-676 Full HTML
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Table 1:

Example of entries in one of the photometric catalogs.
ID $\alpha_{\rm Bary}$ $\delta_{\rm Bary}$ $\alpha_{\rm Peak}$ $\delta_{\rm Peak}$ Area $r_{\rm Kron}$ FWHM b/a PA FLAG S.I.  
  (deg) (deg) (deg) (deg) (arcsec2) ( $^{\prime\prime}$) ( $^{\prime\prime}$)   (deg)  
WINGS J004135.4-090100.5 10.39751 -9.01681 10.39751 -9.01682 17.39 1.49 6.26 0.73 63 19 0.02 ...
WINGS J004106.0-090104.2 10.27495 -9.01783 10.27500 -9.01781 41.86 0.83 2.03 0.75 31 0 0.03 ...

  V band  
  Conc. Contr. $\mu_{\rm max}$ MAG_ISO MAG_ISOCOR MAG_AUTO MAG(2 kpc) MAG(5 kpc) MAG(10 kpc) MAG(1 $.\!\!^{\prime\prime}$6) MAG(2 $.\!\!^{\prime\prime}$0) MAG(2 $.\!\!^{\prime\prime}$16)  
... 0.384 0.543 22.97 20.71 20.44 19.86 21.43 20.63 20.10 22.53 22.19 22.09 ...
... 0.460 0.777 21.03 18.58 18.55 18.57 19.11 18.60 18.51 20.48 20.09 19.97 ...

  B band
  MAG_ISO MAG_ISOCOR MAG_AUTO MAG(2 kpc) MAG(5 kpc) MAG(10 kpc) MAG(1 $.\!\!^{\prime\prime}$6) MAG(2 $.\!\!^{\prime\prime}$0) MAG(2 $.\!\!^{\prime\prime}$16)
... 21.41 20.46 20.00 22.18 21.09 20.21 23.37 23.01 22.90
... 19.60 19.48 19.58 20.16 19.61 19.47 21.58 21.18 21.05
ID: object internal identification.
( $\alpha_{\rm Bary}$,  $\delta_{\rm Bary}$): equatorial coordinates (J2000.0) of the barycenter.
( $\alpha_{\rm Bary}$,  $\delta_{\rm Bary}$): equatorial coordinates (J2000.0) of the brightest pixel.
Area: area above the detection threshold.
$r_{\rm Kron}$: Kron radius used to computed the MAG_AUTO magnitude.
FWHM: full width at half maximum assuming a Gaussian core.
b/a: axis ratio.
PA: position angle of the major axis (North = 0$^\circ$, counter-clockwise).
FLAG: SExtractor's FLAG.
S.I.: SExtractor's stellarity index CLASS_STAR.
$\mu_{\rm max}$: surface brightness of the brightest pixel.
Conc.: Abraham's concentration index, measured as the ratio between the flux in the central 9% of the pixels and the total flux.
Contr.: Abraham's contrast index, measured as the ratio between the flux in the brightest 30% of the pixels and the total flux.
MAG_ISO: SExtractor's isophotal magnitude.
MAG_ISOCOR: SExtractor's isophotal corrected magnitude.
MAG_AUTO: SExtractor's Kron aperture magnitude.
MAG(2 kpc), MAG(5 kpc), MAG(10 kpc): magnitudes within apertures of radius 2 kpc, 5 kpc and 10 kpc, respectively, measured at the clusters' redshift.
MAG($1\hbox{$.\!\!^{\prime\prime}$ }6$), MAG($2\hbox{$.\!\!^{\prime\prime}$ }0$), MAG($2\hbox{$.\!\!^{\prime\prime}$ }16$): magnitudes measured within apertures of diameter equal to $1\hbox{$.\!\!^{\prime\prime}$ }6$, $2\hbox{$.\!\!^{\prime\prime}$ }0$, $2\hbox{$.\!\!^{\prime\prime}$ }16$, respectively.

Source LaTeX | All tables | In the text

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