(very distant starburst galaxy)
AzTEC-3 is a high-redshift starburst galaxy with
an extremely high star formation rate, discovered at z = 5.3
by AzTEC, a bolometer-array camera installed on the James Clerk Maxwell Telescope (JCMT).
It is surrounded by galaxies forming stars at high
but more usual rates and it shows signs of a recent
galaxy merger. It lends evidence to the theory
that galaxies grew through mergers and through
the effect of mergers on their gas. Its redshift places
it at 12.6 Gly distant, about a billion years
after the Big Bang.
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