CFHT UM2025 - Presentation Details
Abstract Details
Title: Multiband photo- and morpho-metry with Sourcextractor in UNIONS and archival CFHT and Subaru imaging
Presenter: Raphael Gavazzi
Abstract:
I will present some recent results on optimal multi-exposure multi-band photometry and shape measurement in wide field CFHT/Megacam and Subaru/(Hyper-)SuprimeCam imaging, as a way to determine the weak lensing mass of galaxy clusters. The capabilities of the code in terms of gained photometric accuracy, systematics in ellipticity measurements and scalability for future applications to the whole UNIONS survey will be discussed.