The 35th annual conference on Astronomical Data Analysis Software & Systems 2025 in Görlitz, Germany

Bayesian imaging of astrophysical measurement data shares universal properties across the electromagnetic spectrum: it requires probabilistic descriptions of possible images and spectra, and instrument responses. To unify Bayesian imaging, we present the the Universal Bayesian Imaging Kit (UBIK). Currently, UBIK allows X-ray satellite data imaging for Chandra and eROSITA and soon radio interferometric imaging. UBIK is based on information field theory, it is open source, it can provide spatio-spectral image cubes, it allows the joint analysis of data from several instruments, and it is able to separate diffuse emission, point sources and extended emission regions.