Surface brightness profiles around massive galaxies in LSSTComCam data

Abstract

Low surface brightness photometry of massive galaxies probes the extended stellar halos and intracluster light but is often limited by background‐subtraction and masking systematics. Here we present radial surface brightness profiles for the brightest cluster galaxies in Abell 360 and 2dFGRS TGS323Z113 using early Rubin Observatory Commissioning Camera (LSSTComCam) Data Preview 1 in the g, r, and z bands. Our result show that the LSSTComCam data can go down to  ∼ 30 mag arcsec⁻² in the r band. Comparison to DECaLS measurements processed with Legacyhalos shows excellent agreement at small radii while the ComCam data extend deeper at larger radii.