Table F.1
Summary of the released tables, available at http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/.
| Parameter | Format | Example (First Object) | Explanation |
|---|---|---|---|
| CATAID | LONG | 3396309 | GAMA CATA_ID as given in catalogue ‘SpecAll27’ |
| GALA_ID | STRING | ‘G09_t14_8.4640 ‘ | unique identifier with GalapagosIN the format FIELD_TILE.SEX_NUMBER |
| RA | DOUBLE | 134.7202 | RA as provided by GAMA |
| DEC | DOUBLE | 1.9992 | DEC as provided by GAMA |
| RA_GALA | DOUBLE | 134.7202 | SEXTRACTOR ALPHA_J2000 |
| DEC_GALA | DOUBLE | 1.9992566 | SEXTRACTOR DELTA_J2000 |
| THETA_IMAGE | DOUBLE | 2.630 | SEXTRACTOR THETA_IMAGE. All images are created so north is up. |
| ELLIPTICITY | DOUBLE | 0.0680 | SEXTRACTOR ELLIPTICITY |
| FLUX_RADIUS | DOUBLE | 0.7011 | SEXTRACTOR FLUX_RADIUS [arcsec] |
| KRON_RADIUS | DOUBLE | 1.1865 | SEXTRACTOR KRON_RADIUS [arcsec] |
| BACKGROUND | DOUBLE | −0.0064 | SEXTRACTOR BACKGROUND |
| FLUX_BEST | DOUBLE | 363618.50 | SEXTRACTOR FLUX_BEST |
| FLUXERR_BEST | DOUBLE | 432.8541 | SEXTRACTOR FLUXERR_BEST |
| MAG_BEST | DOUBLE | 16.0984 | SEXTRACTOR MAG_BEST |
| MAGERR_BEST | DOUBLE | 0.0013 | SEXTRACTOR MAGERR_BEST |
| FWHM_IMAGE | DOUBLE | 1.010 | SEXTRACTOR FWHM_IMAGE [arcsec] |
| FLAGS | INT | 0 | SEXTRACTOR FLAGS |
| CLASA_STAR | DOUBLE | 0.9780 | SEXTRACTOR CLASA_STAR |
| FLAG_GALFIT | INT | 2 | Flag on single-Sérsic fits. 0=not attempted, 1=fits started, but crashed, 2=fit finished |
| In case of crashed fits, Galfitm parameters contain standard values. | |||
| NEIGH_GALFIT | INT | 0 | Number of neighbouring profiles/objects fit (or fixed) during the single-Sérsic fit |
| CHISQ_GALFIT | FLOAT | 736530. | Galfitm χ2 value, single-Sérsic fit |
| CHISQ_GALFIT_PRIME | FLOAT | 68963.2 | Galfitm χ2 value within primary ellipse only, see Appendix E, single-Sérsic fit |
| NDOF_GALFIT | LONG | 29888 | degree of freedom during the fit, includes #pixels, used to derive reduced χ2 : χ2/ν, single-Sérsic fit |
| NDOF_GALFIT_PRINM | LONG | 3154 | same for ‘fit’ within primary ellipse, single-Sérsic fit |
| CHI2NU_GALFIT | FLOAT | 24.6430 | Galfitm reduced χ2 : χ2/v, single-Sérsic fit |
| CHI2NU_GALFIT_PRIME | FLOAT | 21.8653 | Galfitm reduced χ2 : χ2/v, within primary ellipse only, single-Sérsic fit |
| SKY_GALA_BAND_[x] | FLOAT(9) | (0.621,[…],−1.12100) | Galapagos-2 sky values at each band. |
| SKY_SIG_BAND_[x] | FLOAT(9) | (0.0350,[…],0.205246) | Galapagos-2 uncertainty of the sky estimation in each band. While the sky value is fixed |
| during the fit, this loses its meaning, but can be used to detect ‘difficult’ fits. | |||
| SKY_FLAG_BAND_[x] | INT(9) | (0,[…],0) | Galapagos-2 sky flag as described in Barden et al. (2012) |
| X_GALFIT_DEG | INT | 1 | Degree of Freedom (DOF) of x-position of the single-Sérsic fit |
| (0=fixed, 1=constant with wavelengths, […], 9=full freedom) | |||
| X_GALFIT_BAND | FLOAT | 30.83 | Galfitm x-position of the single-Sérsic fit (relative to its postage stamp). |
| Provided for completeness as a uncertain position might give useful insight. | |||
| XERR_GALFIT_BAND_[x] | FLOAT | 0.9421 | Galfitm x-position uncertainty of the single-Sérsic fit |
| […] | |||
| MAG_GALFIT_DEG | INT | 9 | DOF of magnitudes of the single-Sérsic fit. Full freedom has been used. |
| MAG_GALFIT_BAND_[X] | FLOAT(9) | (17.9330,[…],15.9602) | Galfitm magnitudes in each band, single-Sérsic fit |
| MAGERR_GALFIT_BAND_[X] | FLOAT(9) | (228.705,[…],148.161) | Galfitm magnitude uncertainties in each band, single-Sérsic fit |
| MAG_GALFIT_CHEB_[C] | FLOAT(9) | (5.7690,[…],0.9317) | Galfitm magnitudes, Chebyshev polynomial parameters, single-Sérsic fit |
| MAGERR_GALFIT_CHEB_[C] | FLOAT(9) | (38.3268,[…],9.28216) | Galfitm magnitude uncertainty on Chebyshev polynomial parameters, single-Sérsic fit |
| RE_GALFIR_DEG | INT | 3 | DOF of re,SS of the single-Sérsic fit. Second order polynomials have been used. |
| RE_GALFIR_BAND_[X] | FLOAT(9) | (0.1101,[…],0.1402) | Galfitm halflight-radii re,SS at each wavelength [in arcsec]. |
| RE_GALFIR_CHEB_[C] | FLOAT(3) | (0.125,0.015, −0.0001) | Galfitm halflight-radii re,SS Chebyshev parameters [result in arcsec]. |
| […] | |||
| MAG_GALFIT_BAND_B_[X] | FLOAT(9) | (18.5300,[…],17.2254) | Galfitm Bulge magnitudes in each band |
| […] | |||
| N_GALFIT_DEG_B | INT | 1 | DOF of Bulge Sérsic index nB. |
| Either =1 (free values) or =0 (fixed values ==4), depending on the catalogue | |||
| N_GALFIT_DEG_B | FLOAT | 4.0 | Galfitm Bulge Sérsic index (identical in each band). ==4 for catalogue with fixed nB values, as in the example. |
| […] | |||
| MAG_GALFIT_BAND_D_[X] | FLOAT(9) | (18.9752,[…],16.4439) | Galfitm Disk magnitudes in each band |
| […] |
Notes. This table summarises the released tables. Formats with ‘(x)’ signify that there are several parameters, indicating the values either for the individual bands, [X], or the individual Chebyshev parameters, [C]. Some value examples are shortened to limit the width of the table. A total of 263 columns are released. Some rows are omitted to shorten the table but trivially follow the same naming convention. All sizes are given in arcseconds, with fit values constrained from ~ 0.102″ (0.3 pixels) to ~ 135.6″ (400 pixels). Fit position angles are defined as follows: ‘0’ is ‘up’(north in the images used), counting anti-clockwise (we note a 90 degree offset to the definition used by SEXTRACTOR).
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