Przy wykorzystaniu interferometrii z wykorzystaniem największego orbitalnego radioteleskopu RadioAstron oraz 4 naziemnych radioteleskopów (odległość radioteleskopów naziemnych i RadioAstrona w czasie pomiarów wynosiła około 150 00 km w poprzek) wykryto , że temperatura materii w systemie kwazara 3C 273 jest 100 razy wyższa , niż dotychczas sądzono.
System kwazara 3C 273 oddalony o ponad 2 miliardów lat świetlnych od Układu Słonecznego emituje ogromne strumienie materii z prędkością bliską prędkości światła.
The scientists combined the Russian RadioAstron satellite with the ground-based telescopes to produce a virtual radio telescope more than 100,000 miles across. They pointed this system at a quasar called 3C 273, more than 2 billion light-years from Earth. Quasars like 3C 273 propel huge jets of material outward at speeds nearly that of light. These powerful jets emit radio waves.
Just how bright such emission could be, however, was thought to be limited by physical processes. That limit, scientists thought, was about 100 billion degrees. The researchers were surprised when their Earth-space system revealed a temperature hotter then 10 trillion degrees.
"Only this space-Earth system could reveal this temperature, and now we have to figure out how that environment can reach such temperatures," said Yuri Kovalev, the RadioAstron project scientist. "This result is a significant challenge to our current understanding of quasar jets," he added.
https://public.nrao.edu/news/pressreleases/radioastron-quasarhttp://www.pulskosmosu.pl/2016/03/29/radioteleskop-o-srednicy-150-000-km-i-goraca-niespodzianka/EDIT:
http://www.spacedaily.com/reports/RadioAstron_Observations_of_the_Extremely_Hot_Heart_of_Quasar_3C_273_999.html