Column | Description |
pgc | PGC number |
ID | S4G catalog running number |
Name | Common name |
Mod | Decomposition model; b=bulge; d=disk;; dd=inner & outer disks; bar=bar |
N | Number of components in final model |
Q | Quality flag; if Q=1 or 2 then MODEL="-" and N=0; Q=4 OK, Q=5 best |
Nuc | Unresolved central component |
Nrel | Fractional contribution of nucleus to total model flux |
Nmag | Nuclear component total [3.6] AB magnitude |
S1 | Inner Sersic component; B=bulge; D=disk |
S1rel | Fractional contribution of inner Sersic component to total model flux |
S1mag | Inner Sersic component total [3.6] AB magnitude |
S1re | Inner Sersic effective radius |
S1ar | Inner Sersic axial ratio |
S1pa | Inner Sersic position angle; ccw from North |
S1n | Inner Sersic index |
D1 | Inner disk component; D=disk |
D1rel | Fractional contribution of inner disk component to total model flux |
D1mag | Inner disk component total [3.6] AB magnitude |
D1hr | Inner disk exponential scale length |
D1ar | Inner disk axial ratio |
D1pa | Inner disk position angle; ccw from North |
D1mu0 | Deprojected inner disk central surface brightness |
F1 | Inner ferrers-component |
F1rel | Fractional contribution of inner ferrers-component to total model flux |
F1mu0 | Inner ferrers-component central surface brightness |
F1rout | Bar outer truncation radius |
F1ar | Inner ferrers-component axial ratio |
F1pa | Inner ferrers-component position angle; ccw from North |
E1 | Inner edge-on disk component; Z=edge-on disk |
E1rel | Fractional contribution of inner edge-on disk to total model flux |
E1mu0 | Deprojected inner edge-on disk central surface brightness |
E1rs | Inner edge-on disk radial scale length |
E1hs | Inner edge-on disk vertical scale length |
E1pa | Inner edge-on disk position angle; ccw from North |
S2 | Outer Sersic component; B=bulge; D=disk |
S2rel | Fractional contribution of outer Sersic component to total model flux |
S2mag | Outer Sersic component total [3.6] AB magnitude |
S2re | Outer Sersic effective radius |
S2ar | Outer Sersic axial ratio |
S2pa | Outer Sersic position angle; ccw from North |
S2n | Outer Sersic index |
D2 | Outer disk component; D=disk |
D2rel | Fractional contribution of outer disk component to total model flux |
D2mag | Outer disk component total [3.6] AB magnitude |
D2hr | Outer disk exponential scale length |
D2ar | Outer disk axial ratio |
D2pa | Outer disk position angle; ccw from North |
D2mu0 | Deprojected outer disk central surface brightness |
F2 | Outer ferrers-component |
F2rel | Fractional contribution of outer ferrers-component to total model flux |
F2mu0 | Outer ferrers-component central surface brightness |
F2rout | Bar outer truncation radius |
F2ar | Outer ferrers-component axial ratio |
F2pa | Outer ferrers-component position angle; ccw from North |
E2 | Outer edge-on disk component; Z=edge-on disk |
E2rel | Fractional contribution of outer edge-on disk to total model flux |
E2mu0 | Deprojected outer edge-on disk central surface brightness |
E2rs | Outer edge-on disk radial scale length |
E2hs | Outer edge-on disk vertical scale length |
E2pa | Outer edge-on disk position angle; ccw from North |
pgc | PGC number |
mag | Total [3.6] magnitude |
q | Axial ratio |
PA | Elliptical isophote position angle |
n | Sersic index |
Re | Effective radius |
name | Common name |
f | 0=good fit; 1=fit uncertain; 2=no fit |
comment | Comment on fit |
pgc | PGC number |
Name | Common name |
GpID | Tully 3000 group identification number |
J2000 | RA and Dec, J2000 |
Glon | Galactic Longitude |
Glat | Galactic Latitude |
SGL | Supergalactic Longitude |
SGB | Supergalactic Latitude |
T | Morphological type from RC3 |
logd25 | log of apparent diameter d25 from RC3 (units 0.1 arcmin) |
logr25 | log of ratio major/minor axes from RC3 |
Bt | Total B magnitude from RC3 |
It | Total I magnitude from RC3 |
Vhel | Heliocentric velocity |
Ag | Galactic extinction in B band (Schlegel et al.) |
Inc | Inclination from RC3 |
a25.5 | Semi-major axis at mu_3.6=25.5 AB mag/arcsec2 |
PA | Position angle at mu_3.6=25.5 AB mag/arcsec2 |
Ell | Ellipticity (1-b/a) at mu_3.6=25.5 AB mag/arcsec2 |
[3.6] | Asymptotic magnitude at 3.6 microns |
e3.6 | Growth curve fitting error in [3.6] mag |
[4.5] | Asymptotic magnitude at 4.5 microns |
e4.5 | Growth curve fitting error in [4.5] mag |
7525 | r75/r25 concentration index at 3.6 microns |
C82 | 5*log10(r80/r20) concentration index at 3.6 microns |
M3.6 | Absolute magnitude at 3.6 microns (S4G assumed distance) |
M4.5 | Absolute magnitude at 4.5 microns (S4G assumed distance) |
Msun | log10(stellar mass at S4G assumed distance) |
DataAccess | Data access |