ハワイ移住This Chandra image was produced by observing the Orion Nebula almost continuously for 13 days. The long observation enabled scientists to study the X-ray behavior of young Sun-like stars with ages between 1 and 10 million years. They discovered that these young stars produce violent X-ray outbursts, or flares, that are much more frequent and energetic than anything seen today from our 4.6 billion-year-old Sun. The range of flare energies is large, with some of the stars producing flares that are a hundred times larger than others. Theoretical work indicates that intensely flaring stars would create strong turbulence in any planet-forming disks around these stars and lead to the formation of planetary systems similar to our solar system.
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