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Thread: Giant 2D Atlas of the Universe

  1. #1
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    Jan 2014
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    Giant 2D Atlas of the Universe

    A Giant 2D Atlas of the Universe has been released to help with the upcoming new-generation dark energy spectroscopic survey.

    http://english.cas.cn/newsroom/resea...4_261694.shtml

    The Beijing-Arizona Sky Survey (BASS) team of National Astronomical Observatories of Chinese Academy of Sciences (NAOC) and their collaborators of the Dark Energy Spectroscopic Instrument (DESI) project released a giant 2D map of the universe, which paves the way for the upcoming new-generation dark energy spectroscopic survey.

    Modern astronomical observations reveal that the universe is expanding and appears to be accelerating. The power driving the expansion of the universe is called dark energy by astronomers. The dark energy is still a mystery and accounts for about 68% of the substance of the universe.

    Large-scale redshift measurements of galaxies can describe the 3D distribution of the matter and reveal the effect of dark energy on the expansion of the universe.

    The DESI project is a new-generation cosmological redshift survey. ZHAO Gongbo, Deputy Director-General of NAOC and a member of DESI, said "DESI will execute a five-year mission to obtain the redshifts of millions of galaxies and construct the largest 3D universe. It is expected to solve the mystery of dark energy."

    "Before DESI begins, researchers need a larger and deeper 2D map of the universe to meet the targeting requirements of such large-scale spectroscopic observations," said ZOU Hu, one of the BASS co-PIs and an associate professor in NAOC.
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  2. #2
    Join Date
    Feb 2005
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    12,114
    That is wonderful to see

  3. #3
    Join Date
    Mar 2004
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    3,206
    Much of this data set (along with others) can be browsed at http://legacysurvey.org/viewer , with pan and zoom, plus the ability to extract cutouts in JPG or FITS form. Our students find it a huge time saver for many projects, and you can lose yourself prowling the sky. Especially along the equator where the Hyper Suprime Cam survey with the 8-meter Subaru telescope was done.

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