You can download the latest version of GLADE from the following link:

GLADE v2.0 (ASCII txt file, 576 MB)

For the first version of GLADE please scroll down.

The 2nd version was created using a different approach in cross-matching than in the 1st version. It includes the newest versions of the HyperLEDA and the 2MASS catalogs, and the SDSS-DR12 QSO catalog is also included. GLADE v2.0 has also galaxies for which B magnitude or redshift data is not available.

For a brief overview of the new cross-matching algorithm, check out the talk slides presented at the 2016 September LIGO-Virgo Collaboration Meeting in Glasgow, UK.

Parameters of each galaxy are represented by a single line in a txt file.

Columns of the catalog are the following:

Column no. | Name | Description |
---|---|---|

1 | PGC | PGC number |

2 | GWGC name | Name in the GWGC catalog |

3 | HyperLEDA name | Name in the HyperLEDA catalog |

4 | 2MASS name | Name in the 2MASS XSC catalog |

5 | SDSS-DR12 name | Name in the SDSS-DR12 QSO catalog |

6 | flag1 | Q: the source is from the SDSS-DR12 QSO catalog G: the source is from another catalog |

7 | RA | Right ascention [deg] |

8 | dec | Declination [deg] |

9 | dist | Luminosity distance [Mpc] |

10 | dist_err | Error of distance [Mpc] |

11 | z | Redshift |

12 | B | B magnitude |

13 | B_err | Error of B magnitude |

14 | J | J magnitude |

15 | J_err | Error of J magnitude |

16 | H | H magnitude |

17 | H_err | Error of H magnitude |

18 | K | K magnitude |

19 | K_err | Error of K magnitude |

20 | flag2 | 0: the galaxy had neither measured distance nor measured redshift value 1: the galaxy had measured redshift value, from which we have calculated distance using the following cosmological parameters: H_0=70 \ \mathrm{km}\ \mathrm{s}^{-1}\ \mathrm{Mpc}^{-1}}, \Omega_{\mathrm{M}}=0.27 and \Omega_{\Lambda}=0.73 2: the galaxy had measured distance value from which we have calculated redshift using the following cosmological parameters: H_0=70 \ \mathrm{km}\ \mathrm{s}^{-1}\ \mathrm{Mpc}^{-1}}, \Omega_{\mathrm{M}}=0.27 and \Omega_{\Lambda}=0.73 |

21 | flag3 | 0: the B magnitude of the source is measured 1: the B magnitude of the source is derived using a random forest machine learning algorithm |

22 | B_err_min | If flag3=1 than columns 22 and 23 give the predicted intervals in between the real B magnitude value falls with 95% probability |

23 | B_err_max | If flag3=1 than columns 22 and 23 give the predicted intervals in between the real B magnitude value falls with 95% probability |

24 | flag4 | 0: the redshift of the source is measured or calculated from a measured distance 1: the redshift of the source is derived using a random forest machine learning algorithm |

25 | z_err_min | If flag4=1 than columns 25 and 26 give the predicted intervals in between the real redshift value falls with 95% probability |

26 | z_err_max | If flag4=1 than columns 25 and 26 give the predicted intervals in between the real redshift value falls with 95% probability |

GLADE v1.0 (ASCII txt file, 460 MB)

Parameters of each galaxy are represented by a single line in a txt file.

Columns of the catalog are the following:

Column no. | Name | Description |
---|---|---|

1 | RA | Right ascention [deg] |

2 | dec | Declination [deg] |

3 | Dist | Distance [Mpc] See column 47 whether its value is predicted or not |

4 | Bmag | Apparent B magnitude [mag] See column 47 whether its value is predicted or not |

5-20: Parameters from HyperLEDA

Column no. | Name | Description |
---|---|---|

5 | bt Hyp | Apparent B magnitude [mag] |

6 | e_bt Hyp | Error of B magnitude [mag] |

7 | it Hyp | Apparent I magnitude [mag] |

8 | e_it Hyp | Error of I magnitude [mag] |

9 | modz Hyp | Redshift distance modulus (modz = 5 log(DL) + 25, where DL is the luminosity distance in Mpc) |

10 | mod0 Hyp | True distance modulus [mag] |

11 | logd25 Hyp | Decimal logarithm of the length of the projected major axis of a galaxy at the isophotal level 25 mag/arcsec^2 in the B-band |

12 | e_logd25 Hyp | Error of the projected major axis |

13 | logr25 Hyp | Decimal logarithm of major axis / minor axis ratio |

14 | e_logr25 Hyp | Error of the axis ratio |

15 | logdc Hyp | Decimal logarithm of apparent corrected diameter |

16 | pa Hyp | Position angle in degrees (from north through east) |

17 | btc Hyp | Apparent corrected B magnitude [mag] |

18 | itc Hyp | Apparent corrected I magnitude [mag] |

19 | ubtc Hyp | Total apparent corrected U-B color |

20 | bvtc Hyp | Total apparent corrected B-V color |

21-28: Parameters from 2MASS XSC

Column no. | Name | Description |
---|---|---|

21 | Jmag 2MASS | Apparent J magnitude [mag] |

22 | errJmag 2MASS | Error of J magnitude [mag] |

23 | Hmag 2MASS | Apparent H magnitude [mag] |

24 | errHmag 2MASS | Error of H magnitude [mag] |

25 | Kmag 2MASS | Apparent K magnitude [mag] |

26 | errKmag 2MASS | Error of K magnitude [mag] |

27 | a/b ratio 2MASS | Ratio of the semi-major and semi-minor axes measured in K |

28 | PA in kmag 2MASS | Position angle measured in K |

29-37: Parameters from GWGC

Column no. | Name | Description |
---|---|---|

29 | Bmag GWGC | Apparent B magnitude [mag] |

30 | majdiam GWGC | Major diameter [arcmin] |

31 | errmd GWGC | Error of major diameter [arcmin] |

32 | mindiam GWGC | Minor diameter [arcmin] |

33 | errmid GWGC | Error of minor diameter [arcmin] |

34 | PA GWGC | Position angle in degrees (from north through east) |

35 | dist GWGC | Distance [Mpc] |

36 | errDist GWGC | Error of distance [Mpc] |

37 | errBmag GWGC | Error of apparent B magnitude [mag] |

38-47: Parameters from 2MPZ & estimated values

Column no. | Name | Description |
---|---|---|

38 | Kmag 2MPZ | Apparent K magnitude [mag] |

39 | errKmag 2MPZ | Error of K magnitude [mag] |

40 | Bmag 2MPZ | Apparent B magnitude [mag]. Whether value get from machine learning or not, see column 47 |

41 | errBmag 2MPZ | If column 47 is 0, this value is the error of Bmag in the 2MPZ, else columns 41 and 42 gives the predicted intervals in between the real value falls with 95% probability |

42 | errBmag_2 2MPZ | See column 41 |

43 | zspec 2MPZ | Spectroscopic redshift |

44 | zphot 2MPZ | Photometric redshift. Whether value get from machine learning or not, see column 47 |

45 | errzphot 2MPZ | If column 47 is 0, this value is the error of zphot in the 2MPZ, else columns 45 and 46 gives the predicted intervals in between the real value falls with 95% probability |

46 | errzphot_2 2MPZ | See column 45 |

47 | flag | If its value is 0 than none of the values are estimated If its value is 1 than column 40, 41, 42, 44, 45 and 46 are predicted values, however, column 3 and 4 are not If its value is 2 than column 4, 40, 41, 42, 44, 45 and 46 are predicted values, however, column 3 is not If its value is 3 than column 3, 40, 41, 42, 44, 45 and 46 are predicted values, however, column 4 is not If its value is 4 than column 3, 4, 40, 41, 42, 44, 45 and 46 are predicted values |