Over the course of five years of observations using 150 spectrographs installed on the Hobby-Eberly Telescope,
An illustration of the changing universe, accelerated expansion, as the standard theory suggests, is caused by dark energy. Image: NASA
The Hobby-Eberle telescope has 150spectrographs of the visible integral field with reproducible blocks (VIRUS), which analyze spectral lines from distant galaxies. These are lines in the spectrum resulting from the emission or absorption of light in small wavelength ranges. They are commonly used to identify atoms or molecules in the atmospheres of stars, planets, or clouds of molecular gas.
Devices have been working since 2016 and collect dataalmost every "dark" night (when the moon is not visible and the sky is clear) for shooting. Changes in the spectral lines show a redshift caused by the expansion of the universe. The HETDEX project researchers are cleaning, collecting and cataloging the data. Every night, this work uncovers thousands of potentially distant galaxies.
Project logo. Image: NASA
The hardest thing to determine which galaxiesbelong to the era of research (from 9 to 11 billion light years), and which are closer to Earth. NASA plans to enlist civilian volunteers to identify signals from distant galaxies. Such galaxies (Lyman alpha emitters) are distinguished by the fact that they emit brightly in one wavelength range. In images, they appear as relatively faint flashes or dots.
In Dark Energy Explorers, volunteers willview images of distant galaxies and other data to help build a map of the universe. Ready-made image classifications will be used for machine learning and automation of the study of the early Universe. The researchers note that the analysis of distant galaxies cataloged by users and AI will help calculate the change in the rate of expansion of the Universe associated with dark energy.
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