Young galaxy, artwork

Young galaxy, artwork

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Credit: EUROPEAN SOUTHERN OBSERVATORY/L. CALCADA/SCIENCE PHOTO LIBRARY

Restrictions: This image may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way, or to imply the endorsement by ESO of any product, service or activity

Caption: Young galaxy. Artwork of a young galaxy, about two billion years after the Big Bang, accreting streams of cooler hydrogen and helium (top and bottom) from the heated galactic halo into the core to form new stars. This process means that violent galactic mergers are not needed to drive vigorous star formation, and helps to explain the large increase in the mass of galaxies a few billion years after the Big Bang. The evidence for this previously unknown process was obtained in a 2010 study that used the SINFONI (Spectrograph for Integral Field Observation in the Near Infrared) instrument on ESO's Very Large Telescope.Restrictions:

Release details: Model release not required. Property release not required.

Keywords: 1, 2010, 21st century, accreting, artwork, astronomical, astronomy, astrophysical, astrophysics, cosmological, cosmology, early universe, forming, galactic, galactic core, galactic halo, galaxy, gas stream, gas streams, helium gas, historical, history, hot stars, hydrogen gas, illustration, one, sinfoni, single, space, spectrograph for integral field observation in the near infrared, spiral galaxy, star formation, stars, streaming, universe, very large telescope, vlt, young, young stars

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