Category Archives: Euclid

Introducing COSMOS2020

By | October 28, 2021

Today we publicly release COSMOS2020, a catalogue of almost a million sources with photometric redshifts and stellar masses in the COSMOS field. COSMOS2020 is described fully in this paper, which has been accepted for publication in the Astrophysical Journal. We are also providing a python notebook showing how to use the catalogues. Released around five… Read More »

A first look at the Spitzer Legacy Survey for Euclid

By | November 27, 2019

By combining mid-infrared light with optical and near-infrared observations one can find the most distant objects in the Universe, right back to the start of cosmic time. That is because the expansion of the Universe causes the light emitted by receding objects to be shifted towards the red. For the most distant objects, only the… Read More »