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S82-MGC

BOSS Completeness

BOSS Mocks

BCGs

Stripe 82 Massive Galaxy Catalog

 

Catalogs

UKWIDE

UKWIDE is a significant subsample of the S82-MGC and forms the basis of a mass function study that will appear in Paper III (contact Kevin Bundy if you're interested).  A number of selection criteria are applied.  Sources must be classified as galaxies and fall in regions passing specific UKIDSS magnitude cuts.  We reject any source in a BOSS veto mask or in bad regions defined for the SDSS Coadd or UKIDSS imaging (in all four bands).  The final area of UKWIDE is 139.4 square degrees.

Name

Description

Column info

Matched photometry

Compilation of "best" parameters, including redshifts and masses

Primary source for Mstar.  Photozs from EAZY

Notes:

  - The best redshifts/masses in order of precision are labelled with: 1) ZSPEC, 2) RM, 3) ZRED, 4) ZREIS

  - I recommend avoiding EAZY photozs and Mstar estimates in favor of those above.

  - The best EAZY-based quantites are labelled NORM_BRT and use a combination of photozs based on BR07 templates and a modified set of BR07 templates (BR07v2).  An attempt has also been made to normalize photo-z biases.

KCorrect absolute magnitudes, birth parameter, etc.

S82-MGC Products in full

All catalog products in this category are matched 1-to-1 and dependent on the pcatd.

Name

Description

Column info

Matched photometry

Primary source for Mstar.  Photozs from EAZY

Photozs from redmapper, redmagic, and neural-network (Reis et al.)

Photozs and Mstar from BPZ

KCorrect absolute magnitudes, birth parameter, etc.

UKIDSS depth information

depth columns

Parent Catalogs

Note, the SDSS Coadd catalog is r-band selected and the UKIDSS catalog is a merge of near-IR band detections.  These two parent catalogs are not matched one-to-one and each contain sources not present in the other.  Cross-matching is performed when building the S82-MGC pcatd.

Name

Description

Column info

SDSS Coadd Parent Catalog

UKIDSS-LAS Parent Catalog