Speaker
Mike Hudson
(Waterloo Centre for Astrophysics)
Description
The Ultraviolet Near-Infrared Optical Northern Survey (UNIONS) is a 5-band ugriz imaging survey that will cover over 6000 square degrees of the northern sky, observed from telescopes in Hawaii. The imaging depth is similar to the Dark Energy Survey, but the sky coverage will ultimately be larger. Moreover, the northern sky has considerable overlap with redshift surveys such as the SDSS surveys and DESI. A key application of these data is measurement of the cosmological parameters from weak gravitational lensing. I will present the first cosmological results from 3500 square degrees of weak lensing data and discuss prospects for future data releases.
Author
Mike Hudson
(Waterloo Centre for Astrophysics)