(very distant starburst galaxy)
AzTEC-3 (aka AzTEC J100020.54+023509.3)
is a high-redshift starburst galaxy with
an extremely high star formation rate, discovered in 2008
at z = 5.3 by AzTEC, a bolometer-array camera,
at the time installed on the James Clerk Maxwell Telescope (JCMT).
The galaxy is surrounded by other galaxies
forming stars at high-but-more-usual
rates and shows signs of a recent
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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rare designator prefixes