Measurement of the evolving galaxy luminosity and mass function using clustering-based redshift inference
arXiv:2209.13825 · doi:10.1093/mnras/stad1250
Abstract
We develop a framework for using clustering-based redshift inference (cluster-) to measure the evolving galaxy luminosity function (GLF) and galaxy stellar mass function (GSMF) using WISE W1 () mid-infrared photometry and positions. We use multiple reference sets from the Galaxy And Mass Assembly (GAMA) survey, Sloan Digital Sky Survey (SDSS) and Baryon Oscillation Spectroscopic Survey (BOSS). Combining the resulting cluster-s allows us to enlarge the study area, and by accounting for the specific properties of each reference set, making best use of each reference set to produce the best overall result. Thus we are able to measure the GLF and GSMF over of the Northern Galactic Cap (NGC) up to . Our method can easily be adapted for new studies with fainter magnitudes, which pose difficulties for the derivation of photo-s. The measurement of the GSMF is currently limited by the models for k-corrections and mass-to-light ratios, rather than more complicated effects tied to the evolution of the differential galaxy bias. With better statistics in future surveys this technique is a strong candidate for studies with new emerging data from, e.g. the Vera C. Rubin Observatory, the Euclid mission or the Nancy Grace Roman Space Telescope.
17 pages, 16 figures, accepted by MNRAS
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