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Astronomy Picture of the Day
The Center of Centaurus A
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zorg.ch
#102473
by
[z]Barbara Harris
@
30.07.2007 00:00
- nach oben -
The Center of Centaurus A
Explanation: A fantastic jumble of young blue star clusters, gigantic glowing gas clouds, and imposing dark
dust
lanes surrounds the central region of the
active galaxy
Centaurus A.
This mosaic of Hubble Space Telescope images
taken in blue, green, and red light has been processed to present a natural color picture of this cosmic maelstrom.
Infrared images
from the Hubble have also shown that hidden at the center of this activity are what seem to be disks of matter spiraling into
a black hole with a billion times the mass of the Sun
!
Centaurus A
itself is apparently the result of a
collision of two galaxies
and the left over debris is steadily being consumed by the
black hole
.
Astronomers believe
that such black hole
central engines
generate the
radio, X-ray, and gamma-ray energy
radiated by Centaurus A and other
active galaxies
. But for an
active galaxy
Centaurus A
is close, a mere 10 million
light-years
away, and is a relatively convenient laboratory for exploring these
powerful sources of energy
.
Credit & Copyright
zorg.ch
#102474
by
IneX
@
30.07.2007 10:26
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gseht us wie ä dreckspur