Table Description: Multi-Component Decompositions for Spitzer Survey of Stellar Structure: S4G. H. Salo et al. 2015, ApJS, 219, 4

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 |