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DESI Opens Access to the Largest 3D Map of the Universe Yet
- The Dark Energy Spectroscopic Instrument (DESI) has released a new dataset containing information on 18.7 million celestial objects, making it the largest 3D map of the universe yet.
- DESI's Data Release 1 (DR1) includes data on 4 million stars, 13.1 million galaxies, and 1.6 million quasars, offering insights into dark energy, galaxy evolution, dark matter, and more.
- This 270-terabyte dataset provides precise distances to millions of galaxies and contains twice as many extragalactic objects as all previous 3D surveys combined.
- DESI's international collaboration of 900+ researchers aims to map over 50 million galaxies and quasars by the end of its five-year data collection period.
- The instrument uses fiber-optic 'eyes' to collect light from galaxies, analyzing their spectra to map the cosmos in three dimensions and study cosmic growth.
- Data from DESI's observations are processed at the National Energy Research Scientific Computing Center (NERSC) using supercomputers like Perlmutter, allowing for faster data analysis and discoveries.
- DESI's data release aims to benefit researchers worldwide and encourages exploration of the vast dataset for various scientific investigations.
- The collaboration provides extensive documentation to support researchers in using the data, promoting diverse applications and discoveries in astrophysics.
- DESI's DR1 paper is accessible on the DESI Data website and will be on arXiv, showcasing the project's commitment to transparency and facilitating scientific advancements.
- Berkeley Lab, managing DESI, is a prominent research institution with numerous Nobel laureates and scientific achievements, emphasizing excellence in discovery science and energy solutions.
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