Speaker
Description
The cosmic microwave background (CMB) gives us information about the earliest history of the Universe, close after the Big Bang. After half a century of more and more sensitive CMB observations, from ground, space and balloons, we now have dozens of valuable data sets available. Each of these has their own strengths and weaknesses, including sensitivity, resolution, frequency bands, sky fraction and systematics. Traditionally each experiment has been analyzed separately, which means that one is blind to the modes not observed by that particular instrument. When instead analyzing them jointly, they will break each other's degeneracies. Another benefit of joint analysis is that more data allows you to model and constrain the CMB and the foreground emissions from our own galaxy at the same time, which is needed to separate the different components and get the best constraint for the cosmological parameters. This type of joint global analysis is what the Cosmoglobe effort is all about.
