Tuesday, June 24, 2014

Powerful Starbursts in Dwarf Galaxies Helped Shape the Early Universe, a New Study Suggests

Powerful Starbursts in Dwarf Galaxies Helped Shape the Early Universe, a New Study Suggests:

GOODS field containing distant dwarf galaxies forming stars at an incredible rate. Image Credit: ESO

GOODS field containing distant dwarf galaxies forming stars at an incredible rate. Image Credit: NASA/ESA Hubble Space Telescope
Massive galaxies in the early Universe formed stars at a much faster clip than they do today — creating the equivalent of a thousand new suns per year. This rate reached its peak 3 billion years after the Big Bang, and by 6 billion years, galaxies had created most of their stars.

New observations from the Hubble Space Telescope show that even dwarf galaxies — the small, low mass clusters of several billion stars — produced stars at a rapid rate, playing a bigger role than expected in the early history of the Universe.(...)
Read the rest of Powerful Starbursts in Dwarf Galaxies Helped Shape the Early Universe, a New Study Suggests (526 words)


© Shannon Hall for Universe Today, 2014. |
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