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Дата изменения: Unknown Дата индексирования: Tue Oct 2 11:27:09 2012 Кодировка: Поисковые слова: m 5 |
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Cygnus X-3 is the generator of electromarnetic emission from radiowaves to Gamma-rays of high energies |
Russian version |
The close X-ray binary with relativisic jest, contained probably
a black hole, Cygnus X-3 has been detected in first time
in Gamma-rays at enegries higher 100 МeV (AGILE, Tavani et al., Nature, 2009)
during the intense radio flares, monitored with RATAN-600 radio telecope.
Thus in the first time such high energy radiation was detected
from the galactic binary star, located on 30000 light years from Sun.
Measurements in 2009-2010 period confirmed this discovery [Fig.3])
Un to now such HE gamma-emission has been detected only from
the active galactic nuclei - extra-galactic objects with supoer-massive
black holes - quasars and blasars. The bright radio flares from Cygnus X-3,
caused by the massive ejections of matter with velocity close to speed of
light accur in the certain "huper-sort" X-ray states
(RXTE PCA), that was in the first time determined in the studies of
HID - "hardness-intensity diagram" [Fig.4].
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![]() Fig.1.Radio map suround the Cygnus X-3 ![]() Fig.2.X-ray image of Cygnus X-3 (Chandra) |
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Fig.3.
Light curves Cygnus X-3 in gamma-rays (AGILE) and in radio cm-bands
(Ryle tel., RATAN-600 and Mestahovi)
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Fig.4.
"Hardness-intensity diagram", plotted for 137 pointing PCA data
of the RXTE observatory.
In the top -- 6 X-ray spectra, determing the six different X-ray states.
Below HID -- the each X-ray point have color,
corresponded to the radio flux densities scale, given in right part
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