In cool red supergiants discovered mysterious hot area.
Photo of the outer layer of the atmosphere of Betelgeuse - closest to the Earth of a red supergiant - was presented by astronomers. Very bright star in the constellation of Orion, is a semiregular variable star. Her brilliance varies from 0.2 to 1.2 magnitude, averaging about 0,7 m. New picture star, red color of which can be seen by observing with the naked eye, reveals the secrets of her outgoing structure of matter.
Right on the image taken by the camera telescope MERLIN, owned observatory Jodrell Bank Observatory, you can see how the star Betelgeuse itself and its orbital circles.
Despite the fact that the star Betelgeuse is massive as our Sun in 1000, it is still at a distance of 650 light-years from Earth is like a tiny dot. Opening on the cold evolved star strange hot spots very surprised scientists.
The temperature of these hot spots are located on opposite sides of the star reaches 4000-5000 degrees Kelvin, while the total temperature of the star is less than 1 200 degrees Kelvin.
Emanating from the star huge arches stretch of cold gas by 7.4 billion miles in space.
The main author of the study, Dr. Anita Richards (Dr. Anita Richards) of the University, said that while it is unclear what such a high temperature hot spots on Betelgeuse. Perhaps this phenomenon triggered by the shock waves produced by stellar pulsations.