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: http://www.sao.ru/Doc-en/SciNews/2012/ULXs/
Дата изменения: Unknown Дата индексирования: Sun Feb 3 15:25:23 2013 Кодировка: Поисковые слова: ceres |
Origin of ultraluminous X-ray sources, relation to young stellar clusters |
Russian version |
Ultraluminous X-ray sources (ULXs) are located in external galaxies, their
X-ray luminosities (1039 - 1041 erg/s) are thousand
times greater than those
of brightest black holes in the Galaxy. ULXs may be supercritical accretion
disks around black holes of stellar masses (~10 Solar masses) like that in
SS433, or they may be a hypothetical intermediate-mass black holes (hundreds
- thousands Solar masses) with standard accretion disks.
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Fig.1.
The interacting Antennae galaxies, the image taken with the Hubble Space
Telescope. Two bright white concentrations are nuclei of the merging
galaxies. Green circles with numbers indicate locations of the brightest
X-ray sources. Green rectangles show frames of the VIMOS spectrograph of the
VLT/Melipal telescope. The same frames are shown in the cornes, locations of
the ULXs are marked there with black circles
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