2MASS Photometric Redshift catalog: a comprehensive three-dimensional census of the whole sky

Understand

Key cosmological applications require the three-dimensional galaxy distribution on the entire celestial sphere.

• These include measuring the gravitational pull on the Local Group, estimating the large-scale bulk flow and testing the Copernican principle.
• However, the largest all-sky redshift surveys -- the 2MRS and IRAS PSCz -- have median redshifts of only z=0.03 and sample the very local Universe.
• There exist all-sky galaxy catalogs reaching much deeper -- SuperCOSMOS in the optical, 2MASS in the near-IR and WISE in the mid-IR -- but these lack complete redshift information.