Map Hyper Suprime allowed astronomers to measure the gravitational distortion of images of about 10 million galaxies.
Map of Hyper Suprime-Cam (HSC), created on the basis of the data of the Japanese Subaru telescope in Hawaii allowed astronomers to measure the gravitational distortion of images of about 10 million galaxies. The study is published in the database of preprints arXiv.org.
The Subaru telescope has given scientists consider galaxies even more and “deeper” than it has managed in the course of similar studies.
For example, the Dark Energy Survey analyses a much larger area of sky with the same precision as the HSC, but is exploring only the nearest Universe. HSC is studying a more narrow area, but look further, allowing researchers to see fainter galaxies, and to create the most accurate map of the distribution of dark matter.
The researchers compared their map with the fluctuations predicted by observations of the CMB with the Planck unit.
The results obtained by HSC, was slightly lower but broadly consistent with the results of Planck. The fact that HSC, and other studies of weak lensing are getting lower results than plank raises questions about whether or not dark energy behaves like Einstein’s cosmological constant.
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