Table Description: Cosmicflows-4: Table 3, columns 13 & 15: CF4 group averaged Surface Brightness Fluctuation distances

Column | Description |
---|---|

PGC | PGC identification of brightest member of group |

Nest | 2MASS "nest" group ID |

DMzp | Group distance modulus for SBF contributions on scale set by calibrators |

Nmain | Number of galaxies with surface brightness fluctuation distances in group (main catalog) |

DMm_w | Group weighted average distance modulus (w=1/sigma^2) |

eDMm | Error of all measured moduli derived from inverse of summed weight |

DMm_av | Unweighted group average distance modulus |

rmsm | rms scatter in moduli if Nsbf>1 |

StDvm | rms/sqrt(Nsbf) |

Nir | Number of galaxies with surface brightness fluctuation distances in group (IR SBF catalog) |

DMir_w | Group weighted average distance modulus (w=1/sigma^2) |

eDMir | Error of all measured moduli derived from inverse of summed weight |

DMir_av | Unweighted group average distance modulus |

rmsir | rms scatter in moduli if Nsbf>1 |

StDvir | rms/sqrt(Nsbf) |

Nhc | Number of galaxies with surface brightness fluctuation distances in group (Hydra/Centaurus catalog) |

DMhc_w | Group weighted average distance modulus (w=1/sigma^2) |

eDMhc | Error of all measured moduli derived from inverse of summed weight |

DMhc_av | Unweighted group average distance modulus |

rmshc | rms scatter in moduli if Nsbf>1 |

StDvhc | rms/sqrt(Nsbf) |

Ng | Number of group members in either Kourkchi-Tully (2017) or Tully (2015) |

gVcmb | Radial velocity in CMB frame averaged over all group members |

gSGL | Group supergalactic longitude |

gSGB | Group supergalactic latitude |