% Zurich Structure&Morphology catalog - version v1.0 % This catalog contains the measurements presented in: % % 1. Scarlata, Carollo, Lilly et al 2007, ApJS, 172, 406 % (i.e., the Zurich Estimator of Structural Type [ZEST] catalog; % measurements down to a limiting magnitude of I_AB=24. % ZEST measurements for galaxies with half-light radii < 0 .17" are unreliable, % especially for galaxies with a steep light profile) % % 2. Sargent, Carollo, Lilly et al 2007, ApJS, 172, 434 % (i.e., Single-Sersic GIM2D fits; % measurements down to a limiting magnitude of I_AB=22.5; % formal GIM2D fits are also listed for approx. 2650 compulsory % zCOSMOS-Bright x-ray, radio, etc. sources with I_AB> 22.5 - however, % the quality of the fits deteriorates for sources substantially % fainter than ~I_AB~23) % % This v1.0 catalog is based on the **May 2006** release % of Alexie Leauthaud's ACS catalog (cut at the limits mentioned above) % % Notes: % (a) All ACS_"parameter" columns are copied from the original % May 2006 Leauthaud catalog % (b) The catalog has been cross-correlated with the % **January 2006** Capak catalog. % All "Capak IDs, RAs, and Decs" refer to this version of % the ground-based photometric catalog, and provide the closest % ground-based match to the ACS source within a radius % of 0.6 arcseconds. % (c) The catalog contains 71 colums and 131532 lines. Each line is written % in fortran format: "format(i9,1x,2d23.12,1x,a37,1x,67d23.12)" % (d) An entry of -999999 indicates "no measurement" % (including in the ACS and Capak catalogs). % (e) The pixel scale for the quantities in pixels is 0.03". % % List of columns: c1 Sequential number c2 ACS_ALPHA_J2000 (degrees) c3 ACS_DELTA_J2000 (degrees) c4 ACS TILE number from which the object is extracted c5 CAPAK_ID c6 CAPAK_RA (degrees) c7 CAPAK_DEC (degrees) c8 ACS_MAG_AUTO (total magnitude of object- used for catalog selection) c9 ACS_MAGERR_AUTO (magnitude error) c10 ACS_X_IMAGE (X-pixel position on ACS tile) c11 ACS_Y_IMAGE (Y-pixel position on ACS tile) c12 ACS_XPEAK_IMAGE (X-pixel position of object peak flux on ACS tile) c13 ACS_YPEAK_IMAGE (Y-pixel position of object peak flux on ACS tile) c14 ACS_ALPHAPEAK_J2000 (RA of object peak flux, degrees) c15 ACS_DELTAPEAK_J2000 (Dec of object peak flux, degrees) c16 ACS_A_IMAGE (SExtractor semi-major axis, pixels) c17 ACS_B_IMAGE (SExtractor semi-minor axis, pixels) c18 ACS_THETA_IMAGE (SExtractor position angle, degrees) c19 ACS_ELONGATION (SExtractor a/b [semi-major axis / semi minor axis]) c20 ACS_CLASS_STAR (SExtractor stellarity parameter) c21 ACS_IDENT (Unique number that identifies object) c22 ACS_SE (FLAG = Detection from 'hot' pass or 'cold' pass of SExtractor) se =0 cold (bright) se =1 hot (faint) c23 ACS_MU_CLASS (FLAG = type of object) mu_class = 1 galaxy mu_class = 2 star mu_class = 3 spurious c24 ACS_OVERLAP (FLAG = object overlap) all the objects in this morphological catalog have "overlap = 1", which means "no overlap" c25 ACS_NEARSTAR (FLAG = object in star mask) all the objects in this morphological catalog have "nearstar = 1" which means they are not in a star mask c26 ACS_MASK (FLAG = object in automatic mask) mask = 0 mask = 2 star used to make automatic masks c27 ACS_MASKED (FLAG = object in manual mask) masked = -1 object in manual mask (astrophysical obj) masked = 0 object in manual mask (artefact or image defect) masked = 1 not in manual mask c28 ACS_CLEAN (FLAG = object usable) clean = 0 do not use this object clean = 1 use this object c29 ACS_UNIQUE (FLAG = object unique) all the objects in this morphological catalog have "unique = 1" which means they are all "unique" in the original ACS catalog c30 GG (ZEST Gini coefficient) c31 M20 (ZEST second order moment of the 20% brightest pixels) c32 CC (ZEST concentration) c33 AA (ZEST asymmetry) c34 R20 (ZEST semi-major axis length of ellipse encompassing 20% of total light, pixels) c35 R50 (ZEST semi-major axis length of ellipse encompassing 50% of total light, pixels) c36 R80 (ZEST semi-major axis length of ellipse encompassing 80% of total light, pixels) c37 RPET (Zest semi-major axis length for Petrosian Radius ellipse, pixels) c38 FLAGRPET (FLAG for Petrosian radius) flag = 0 single Petrosian radius measured flag = 2 multiple Petrosian radii measured (noisy SB profile) flag = 5 SB profile was corrected for diffuse light contribution from neighboring object(s) c39 FLUX_GIM2D (GIM2D total flux in counts) c40 LE_FLUX_GIM2D (99% conf. lower error on R_GIM2D) c41 UE_FLUX_GIM2D (99% conf. upper error on R_GIM2D) c42 R_GIM2D (GIM2D psf-convolved half-light radius of object; arcseconds) c43 LE_R_GIM2D (99% conf. lower error on R_GIM2D) c44 UE_R_GIM2D (99% conf. upper error on R_GIM2D) c45 ELL_GIM2D (GIM2D ellipticity = 1-b/a of object) c46 LE_ELL_GIM2D (99% conf. lower error on ELL_GIM2D) c47 UE_ELL_GIM2D (99% conf. upper error on ELL_GIM2D) c48 PA_GIM2D (GIM2D position angle of object - cw from +y-axis, degrees) c49 LE_PA_GIM2D (99% conf. lower error on PA_GIM2D) c50 UE_PA_GIM2D (99% conf. upper error on PA_GIM2D) c51 DX_GIM2D (x-offset of GIM2D-model center from ACS-coordinate center [ACS_ALPHA_J2000, ACS_DELTA_J2000]; arcseconds) c52 LE_DX_GIM2D (99% conf. lower error on DX_GIM2D) c53 UE_DX_GIM2D (99% conf. upper error on DX_GIM2D) c54 DY_GIM2D (y-offset of GIM2D-model center from ACS-coordinate center [ACS_ALPHA_J2000, ACS_DELTA_J2000]; arcseconds) c55 LE_DY_GIM2D (99% conf. lower error on DY_GIM2D) c56 UE_DY_GIM2D (99% conf. upper error on DY_GIM2D) c57 SERSIC_N_GIM2D (GIM2D Sersic index) c58 LE_N_GIM2D (99% conf. lower error on SERSIC_N_GIM2D) c59 UE_N_GIM2D (99% conf. upper error on SERSIC_N_GIM2D) c60 R_0P5_GIM2D (GIM2D half-light radius of object without PSF convolution; arcseconds) c61 CHI_GIM2D (reduced CHI2 of the best GIM2D model fit) c62 ITER_GIM2D (no. of iterations required for GIM2D fit to converge) c63 PC_1 (ZEST first principal component) c64 PC_2 (ZEST second principal component) c65 PC_3 (ZEST third principal component) c66 TYPE (ZEST Type CLASS) 1 = Early-Type Galaxy 2 = Disk Galaxy 3 = Irregular Galaxy 9 = no classification c67 BULG (ZEST "Bulgeness" CLASS - only for Type 2 [i.e. disk] galaxies) range: 0 to 3 0 = bulge dominated galaxy 1, 2 = intermediate-bulge galaxies 3 = pure disk galaxy 9 = no classification c68 IRRE (ZEST Irregularity CLASS- only for Type 1 [i.e. elliptical] galaxies) 0 = regular 1 = irregular 9 = no value c69 ELLI (ZEST Ellipticity CLASS) 0 to 3 0 = face-on 1, 2 = increasingly higher elongation 3 = edge-on 9 = no classification of elongation c70 STELLARITY (FLAG for Visual Stellarity) flag = 0 if ACS_CLASS_STAR<0.6 (object is ASSUMED to be a galaxy; no visual inspection) flag = 0 if ACS_CLASS_STAR>=0.6 AND object visually identified as a galaxy flag = 1 if ACS_CLASS_STAR>=0.6 AND visually identified as a star flag = 2 if ACS_CLASS_STAR>=0.8 (object is assumed to be a star and was not visually inspected) flag = 3 if ACS_CLASS_STAR<0.6 AND but object is visually identified as a star (e.g. saturated star, etc) c71 JUNKFLAG (FLAG for junk) flag = 0 good object flag = 1 detection visually identified as spurious (= junk)