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I New light shed on birth of the universe

  1. May 13, 2016 #1

    wolram

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    https://www.sciencedaily.com/releases/2016/05/160512142915.htm

    A faint blue galaxy about 30 million light-years from Earth and located in the constellation Leo Minor could shed new light on conditions at the birth of the universe.

    Astronomers at Indiana University recently found that a galaxy nicknamed Leoncino, or "little lion," contains the lowest level of heavy chemical elements, or "metals," ever observed in a gravitationally bound system of stars.

    The study appears today in the Astrophysical Journal. The lead author on the paper is Alec S. Hirschauer, a graduate student in the IU Bloomington College of Arts and Sciences' Department of Astronomy. Other IU authors on the paper are professor John J. Salzer and associate professor Katherine L. Rhode in the Department of Astronomy.

    "Finding the most metal-poor galaxy ever is exciting since it could help contribute to a quantitative test of the Big Bang," Salzer said. "There are relatively few ways to explore conditions at the birth of the universe, but low-metal galaxies are among the most promising."

    For information only.
     
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  3. May 14, 2016 #2

    Garth

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    You will find the paper on the physics ArXiv here:ALFALFA Discovery of the Most Metal-Poor Gas-Rich Galaxy Known: AGC 198691.

    Garth
     
    Last edited: May 15, 2016
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