Preliminary clustering properties of the DESI BGS bright targets using DR9 Legacy Imaging Surveys

Understand

We characterise the selection cuts and clustering properties of a magnitude-limited sample of bright galaxies that is part of the Bright Galaxy Survey (BGS) of the Dark Energy Spectroscopic Instrument (DESI) using the ninth data release of the Legacy Imaging Surveys (DR9).

• We describe changes in the DR9 selection compared to the DR8 one as explored in Ruiz-Macias et al.
• (2021).
• We also compare the DR9 selection in three distinct regions: BASS/MzLS in the north Galactic Cap (NGC), DECaLS in the NGC, and DECaLS in the south Galactic Cap (SGC).