Stereoscopic system for the registration of high-energy (HESS), representing a group of telescopes located in Namibia, has documented these outbreaks, the source of which was PKS 2155-304. Gamma rays with low energies directly recorded wide-angle telescope (Large Area Telescope – LAT), installed aboard the orbiting gamma – Telescope Fermi, NASA. ‘Run the Fermi Telescope (Fermi) gives us opportunity to conduct the first measurement of this powerful galaxy from edge to edge in different wavelengths’, – says (Werner Hofmann), representative of the group with HESS Institute of Nuclear Physics. Max-Planck-Heidelberg (Heidelberg), Germany. Since the observation of gamma radiation was completely secured, the group turned to the cosmic X-ray telescopes, satellites, Swift (Swift) and Rossi (Rossi) X-ray Timing Explorer (RXTE), NASA, to provide X-ray data emission of the galaxy. Completed the study robotic telescopes in the optical monitoring HESS, who recorded the activity of galaxies in the visible spectrum.
In the period between August 25 and September 6, 2008 telescopes monitored PKS 2155-304, when the galaxy was at rest, in the absence of bright flashes. The results of observations of the 12-day campaign were awesome. In times of outbreaks of this and other blazars and bursts and downs of X-ray and gamma radiation occur simultaneously. But this timing was not observed during periods when the object PKS 2155-304 was in a quiescent state, and no one knows why. What was even more strange is the fact that the increase and decrease the emission of the galaxy in the visible spectrum took place synchronously with bursts and busts of gamma radiation. ‘This is analogous to the behavior of solder torch, when the maximum and minimum temperature change synchronously, and the average temperature – no, – said Berry Gibels (Berrie Giebels), an astrophysicist at the Polytechnic Institute in France, who works with both groups – the leading observations with HESS and Wide teleskopFermi (Fermi LAT). What did Kotick do? brings even more insight to the discussion. ‘Astronomers have concluded that the various components of the jets in blazars interact quite a complex manner, producing radiation that we see’, – says member of the team research through a telescope Fermi (Fermi) Chieng Jim (Jim Chiang) from Stanford University, California. ‘These observations may contain the first clues of what is actually happening in the blazar heart.