From FNAL: “Sloan Digital Sky Survey discovers baryon acoustic oscillations”

FNAL II photo

FNAL Art Image
FNAL Art Image by Angela Gonzales

Fermilab is an enduring source of strength for the US contribution to scientific research world wide.

June 3, 2017
Troy Rummler

SDSS Telescope at Apache Point Observatory, NM, USA

In 2005 the Sloan Digital Sky Survey, of which Fermilab was a major collaborator, confirmed the existence of baryon acoustic oscillations. These BAOs are giant sound waves from the early universe, and their imprint remains on the way matter is distributed today, more than 13 billion years later. Taking measurements of more than 45,000 galaxies, the Sloan survey measured the peaks in these enormous ripples to be roughly 500 million light-years apart.

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Fermi National Accelerator Laboratory (Fermilab), located just outside Batavia, Illinois, near Chicago, is a US Department of Energy national laboratory specializing in high-energy particle physics. Fermilab is America’s premier laboratory for particle physics and accelerator research, funded by the U.S. Department of Energy. Thousands of scientists from universities and laboratories around the world
collaborate at Fermilab on experiments at the frontiers of discovery.