SITCOMTN-165: Surface brightness profiles around massive galaxies in LSSTComCam data

Journal Article · Wed Oct 22 00:00:00 EDT 2025 · Vera C. Rubin Observatory Commissioning Technical Note SITCOMTN-165

DOI:https://doi.org/10.71929/RUBIN/3000576· OSTI ID:3007265

Zhou, Conghao; Jeltema, Tesla; Von der Linden, Anja; Kelvin, Lee S; Dell'Antonio, Ian ^[1]; Taranu, Dan S; Englert, Anthony ^[1]; Leauthaud, Alexie

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1. Brown University

Low surface brightness photometry of massive galaxies can probe 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 galaxy of Abell 360 and 2dFGRS TGS323Z113 using Rubin Observatory Commissioning Camera (LSSTComCam) Data Preview 1 in the g, r, and z bands. Our results show that the LSSTComCam data can go down to ~28 mag arcsec^-2 in the r band. Comparison to DECaLS measurements processed with Legacyhalos shows good agreement of surface brightness profiles at small radii while the LSSTComCam data extend deeper at larger radii.

• Research Organization: Brown University
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: SC0010010
• OSTI ID: 3007265
• Alternate ID(s): OSTI ID: 3000576
• Journal Information: Vera C. Rubin Observatory Commissioning Technical Note SITCOMTN-165, Journal Name: Vera C. Rubin Observatory Commissioning Technical Note SITCOMTN-165
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS