October 25, 2011 15:01
LOS ANGELES, October 25. / Correspondent. Itar-Tass Kachalin /. The nature of the mysterious phenomenon that Chinese astronomers observed almost 2 thousand years ago, U.S. researchers found. By analyzing data from NASA's space telescope "Spitzer" space laboratory and infrared WISE, they found out why the first time in the history of recorded traces of the explosion of a supernova was about 2-3 times the normal size. The fact that this powerful cataclysm broke out in the region of space from which we find there under the influence of the original stars were literally blown interstellar gas and dust. As a result of a dying star ejected material shattered faster and at a greater distance than in the presence of such interference.
The main provisions of the new study outlined NASA's Jet Propulsion Laboratory in Pasadena / California /, where is the control of the telescope, "Spitzer." "Supernova remnants scattered quickly, increasing in size. The size was two to three times more than what would be expected from a supernova almost two thousand years ago. Only now, we have been able to establish the cause, "- said astronomer Brian Williams of the University of North Carolina.
Home puzzle put Chinese scientists who in 185 BC noticed the appearance of the sky bright object, sparkled for about 8 months. By the 1960s, astronomers have come to the unanimous conclusion that the phenomenon was first recorded in the history of supernova explosions, which are listed later in the directories under the designation RCW 86 / latin letters / and is located at a distance of about 8 thousand light-years from Earth.
Comparison of the data, "Spitzer», WISE, and X-ray space observatory, "Chandra" revealed that RCW 86 explosion occurred when a white dwarf mass close to our sun, but more dense. As explained by Williams, in a study he and his colleagues first identified the ability of white dwarfs to create a collapse in the surrounding area of the cavitation free of interstellar gas and dust. In this case, the cavity and provided ideal conditions for the expansion "remains" of the star.