最終更新日：2025/12/07
(cosmology) The epoch of reionization of the Universe, where matter decoupled from energy, and space became transparent to radiation. One of the Ages of the Universe. The cosmic era when ultraviolet radiation of the first (Population III) stars and quasars ionized neutral hydrogen, ending the Cosmic Dark Age(s).
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Reionization
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元となった辞書の項目
Reionization
固有名詞
(cosmology)
The
epoch
of
reionization
of
the
Universe,
where
matter
decoupled
from
energy,
and
space
became
transparent
to
radiation.
One
of
the
Ages
of
the
Universe.
The
cosmic
era
when
ultraviolet
radiation
of
the
first
(Population
III)
stars
and
quasars
ionized
neutral
hydrogen,
ending
the
Cosmic
Dark
Age(s).
日本語の意味
宇宙再電離期：初期の星やクエーサーからの紫外線により、中性水素が再びイオン化され、宇宙が透明になった時代。宇宙の暗黒時代が終わる重要な天体物理学的現象。
意味（1）
(cosmology)
The
epoch
of
reionization
of
the
Universe,
where
matter
decoupled
from
energy,
and
space
became
transparent
to
radiation.
One
of
the
Ages
of
the
Universe.
The
cosmic
era
when
ultraviolet
radiation
of
the
first
(Population
III)
stars
and
quasars
ionized
neutral
hydrogen,
ending
the
Cosmic
Dark
Age(s).
