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D e e p F i e l d s:
Chandra Deep Field - South

(
NASA/JHU/AUI/R.Giacconi et al. )
This
Chandra image shows that gigantic black holes were much more active
in the past than the present. In this deepest X-ray exposure ever
made, some of the sources are 12 billion light years away. Most of
the objects are active galaxies and quasars powered by supermassive
black holes, while other objects are galaxies, and groups and clusters
of galaxies. Information from this image will help astronomers understand
how dense clouds of gas form galaxies with massive black holes at
their centers. The energy bands of the X-rays are color coded, with
red representing lower energies, yellow intermediate, and blue the
highest energies.
Chandra
Deep Field - South Photo Album Page |
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