That is what Desi is designed to do: Perform accurate measurements of the clear size of these bubbles (both near and far) by determining the distance to galaxies and quasar for more than 11 billion years. That data can then be cut into blocks to determine how quickly the universe is expanding at every time in the past, as possible for the dark energy model to affect that expansion.
A trend up
Last year's results were based on the data analysis of the entire value taken from seven different slices of the universe time and included 450,000 Quasar, the largest ever collected, with the accuracy of the farthest era (from 8 to 11 billion years) of 0.82 %. Despite the basic agreement with the Lamba CDM model, when those first -year results are combined with data from other studies (related to cosmic and IA microwave radiation), some exquisite differences have appeared.
Basically, those differences show that dark energy can become weaker. In terms of reliability, the result is up to 2.6-Sigma for Desi's data in combination with the CMB data kit. When adding supernatural data, those numbers increased to 2.5-Sigma, 3.5-Sigma or 3.9-Sigma, depending on what specific supernova data sets are used.
It is important to combine Desi data with other independent measurements because we want to have the consistency of different experiments that will provide us with the same answer about how many problems in the universe today, the universe is expanding quickly. It is not good if all experiments agree with the Lambda-CDM model, but then it will not be suitable for you. The basic properties of that model.
These latest results include the first three years of the data collected, spreading nearly 15 million galaxies and Quasar. Again, Desi data is only suitable for Lambda CDM, that is, dark energy is constant. And again, when combined with other data sets, from CMB, supernova and studies on weak gravity lenses, strong suggestions have appeared that dark energy may change over time. The reliability level ranges from 2.8 to 4.2 sigma, depending on the combination of the data set, just the shyness of the sigma year threshold.
This can attack an ordinary citizen as an increasing progress, but more complicated. Desi data itself does not increase, Percival said. We have three years of data, not a year data. It is a significant thing, not only because of the increased area but because we have increased overlapping. The way we conducted the survey was that we built the plates in the sky, and after three years instead of a year, we have completed more. The measurements itself is much better.