GLADE+ Galaxy Catalog

About

We present GLADE+, an extended version of the GLADE galaxy catalog introduced in our previous paper for multimessenger searches with advanced gravitational-wave detectors. GLADE+ combines data from six separate but not independent astronomical catalogues: the GWGC, 2MPZ, 2MASS XSC, HyperLEDA, and WISExSCOSPZ galaxy catalogues, and the SDSS-DR16Q quasar catalog. GLADE+ contains ~22.5 million galaxies and ~750,000 quasars. GLADE+ is complete up to a luminosity distance of ~44 Mpc in terms of the cumulative B-band luminosity of galaxies, and contains all of the brightest galaxies giving half of the total B-band luminosity up to ~95 Mpc. Considering the brightest galaxies giving half of the total luminosity in the W1-band, GLADE+ has nearly 90% completeness at even ~500 Mpc. We derived stellar masses and binary neutron star mergers for galaxies with W1 magnitudes. These parameters can help to rank the galaxies in a given gravitational wave localization volume, thereby possibly reducing the number of pointings and the total integration time needed to find the electromagnetic counterpart. The codes used for the stellar mass and and merger rate calculations can be found on Github.



GLADE+ is described in detail in the following paper: GLADE+ paper.
Pleace cite this paper when using GLADE+ data.

We are grateful for the Wide Field Astronomy Unit (WFAU) for providing the WISExSCOS and 2MPZ data used in creating GLADE+. We acknowledge the usage of the HyperLeda database.

Download

You can download the GLADE+ galaxy catalog from the following link (last updated: 10 July 2022):
GLADE+ (ASCII txt file, 6 GB)



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 GLADE no GLADE+ catalog number
2 PGC no Principal Galaxies Catalogue number
3 GWGC name Name in the GWGC catalog
4 HyperLEDA name Name in the HyperLEDA catalog
5 2MASS name Name in the 2MASS XSC catalog
6 WISExSCOS name Name in the WISExSuperCOSMOS catalog (wiseX)
7 SDSS-DR16Q name Name in the SDSS-DR16Q catalog
8 Object type flag Q: the source is from the SDSS-DR16Q catalog
G:the source is from another catalog and has not been identified as a quasar
9 RA Right ascension in degrees
10 Dec Declination in degrees
11 B Apparent B magnitude
12 B_err Absolute error of apparent B magnitude
13 B flag 0: the B magnitude is measured
1: the B magnitude is calculated from the B_J magnitude
14 B_Abs Absolute B magnitude
15 J Apparent J magnitude
16 J_err Absolute error of apparent J magnitude
17 H Apparent H magnitude
18 H_err Absolute error of apparent H magnitude
19 K Apparent K_s magnitude
20 K_err Absolute error of apparent K_s magnitude
21 W1 Apparent W1 magnitude
22 W1_err Absolute error of apparent W1 magnitude
23 W2 Apparent W2 magnitude
24 W2_err Absolute error of apparent W2 magnitude
25 W1 flag 0: the W1 magnitude is measured
1: the W1 magnitude is calculated from the K_s magnitude
26 B_J Apparent B_J magnitude
27 B_J err Absolute error of apparent B_J magnitude
28 z_helio Redshift in the heliocentric frame
29 z_cmb Redshift converted to the Cosmic Microwave Background (CMB) frame
30 z flag 0: the CMB frame redshift and luminosity distance values given in columns 29 and 33 are not corrected for the peculiar velocity
1: they are corrected values
31 v_err Error of redshift from the peculiar velocity estimation
32 z_err Measurement error of heliocentric redshift
33 d_L Luminosity distance in Mpc units
34 d_L err Error of luminosity distance in Mpc units
35 dist flag 0: the galaxy has no measured redshift or distance value
1: it has a measured photometric redshift from which we have calculated its luminosity distance
2: it has a measured luminosity distance value from which we have calculated its redshift
3: it has a measured spectroscopic redshift from which we have calculated its luminosity distance
36 M* Stellar mass in 10^10 M_Sun units
37 M*_err Absolute error of stellar mass in 10^10 M_Sun units
38 M* flag 0: if the stellar mass was calculated assuming no active star formation
1: if the stellar mass was calculated assuming active star formation
39 Merger rate Base-10 logarithm of estimated BNS merger rate in the galaxy in Gyr^-1 units
40 Merger rate error Absolute error of estimated BNS merger rate in the galaxy

Previous versions

You can download the GLADE v2.4 galaxy catalog from the following link:
GLADE v2.4 (ASCII txt file, 457 MB)


It contains the following changes compared to GLADE v2.3 (based on suggestions and comments of GLADE users):

  • We added 1050 galaxies from GWGC for which we have applied a too strict cut in v2.3
  • We removed 320 galaxies which were duplicates but had different designations
  • Now the value "3" of flag2 means generally that the redshift value is spectroscopic redshift

GLADE v2.3 is the catalog version described in detail in the GLADE paper. This version can be downloaded from the following link:
GLADE v2.3 (ASCII txt file, 456 MB)

Contact

Location:

Universiteit Gent, Campus Proeftuin
Proeftuinstraat 86, 9000 Gent, Belgium