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bholeill.txt
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1996-01-12
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FOR RELEASE: December 4, 1995
PHOTO NO.: STScI-PRC95-47b
THE NEAR VICINITY OF THE BLACK HOLE AT THE CORE
OF GALAXY NGC 4261 - ARTIST CONCEPT
This is an illustration of how the night sky might look to a dweller in
the core of galaxy NGC 4261, which harbors an 800-light-year-wide disk
of dust and 1.2 billion-solar-mass black hole.
This imaginary view is from a hypothetical planet inside the dust dusk,
looking toward the black hole. The black hole's white-hot glow from
super-heated gas is reddened by intervening dust. A "lighthouse beam"
from the hot accretion disk around the black hole, along with invisible
radio jets, radiates above and below the hole at right angles to the
dark dust disk encircling the hole. This dark, dusty disk bisects the
sky, blocking out light from the star behind it, and reddening
starlight traveling near it by optical scattering - much in the same
way the sunlight turns red at sunset by scatter from dust in our
atmosphere.
The imaginary planet, and surrounding stars, are destined to be
swallowed by the black hole, and material in the disk spirals into its
gravitational abyss.
Illustration by J. Gitlin (Space Telescope Science Institute)