Review
Open access
Oct 2026
UNIONS and Euclid: Calibrating point source--galaxy separation for ground-based surveys
An efficient and accurate separation of unresolved point sources from extended objects, usually referred to as star–galaxy separation, is essential for the scientific exploitation of deep wide-field imaging surveys, particularly at faint magnitudes where morphological differences become subtle. This paper presents a de...
G. Thomas, S. E. Smith, S. Gwyn et al.
· Astronomy & Astrophysics · 0 citations