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: http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/SuspectBH.html
Дата изменения: Sun Mar 4 20:45:15 2001 Дата индексирования: Sat Dec 22 08:55:15 2007 Кодировка: Поисковые слова: dust disk |
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September 10, 1997
Photo No.: STScI-PRC97-28a
NASA's Hubble Space Telescope has provided a never-before-seen view of a warped disk flooded with a torrent of ultraviolet light from hot gas trapped around a suspected massive black hole.
[Right]
This composite image of the core of the galaxy was constructed by
combining a visible light image taken with Hubble's Wide Field
Planetary Camera 2 (WFPC2), with a separate image taken in
ultraviolet light with the Faint Object Camera (FOC). While the
visible light image shows a dark dust disk, the ultraviolet image
(color-coded blue) shows a bright feature along one side of the
disk. Because Hubble sees ultraviolet light reflected from only
one side of the disk, astronomers conclude the disk must be
warped like the brim of a hat. The bright white spot at the
image's center is light from the vicinity of the black hole which
is illuminating the disk.
[Left]
A ground-based telescopic view of the core of the elliptical
galaxy NGC 6251. The inset box shows Hubble Space Telescope's
field of view. The galaxy is 300 million light-years away in the
constellation Ursa Minor.
Photo Credit: Philippe Crane (European Southern Observatory), and NASA