Saturday, December 18, 2010

11.5 billion light years from Earth, the galaxy outbreak occurred (Figure).

<P Align=center> </ P> <P> Durham University, a team of astronomers found a number LAB-2 galaxies trace the outbreak of unusual, this observation is conducive to the existence of galaxies almost exploded into pieces so that ."super wind" direct evidence. .</ P> <P> astronomers believe that galaxies in this outbreak to the intergalactic space hundreds of kilometers per second, the eruption rate of some of their own material. .This phenomenon is driven by massive star exploded in a short time immediately, in the young galaxies are strongly during the formation of stars, perhaps, the galactic center, super giant black hole at work. .</ P> <P> "super wind" utmost importance for the theory of galaxy formation, first, they will limit the size of the galaxy, preventing further star formation, according to calculations, there is no such outbreak, we should see a much brighter .galaxies. .Second, they will come from the star broke out into intergalactic space transporting heavy elements, planets and life to ensure that the necessary "raw material" to the further spread of the universe. .</ P> <P> this not long ago, astronomers only see in nearby galaxies similar to the "super wind" weak phenomenon, "super wind" was observed galaxy LAB-2 in the gas halo found, LAB .-2 galaxy diameter of about 3 times larger than our Milky Way, more than 30 million light years. .</ P> <P> astronomers found that the light from glowing hydrogen gas in the entire galaxy has become very dim, in the study, Dr. Richard • Wellman that the dim galaxies is due to cooling caused by the jet material, change .cold matter jet is "super wind" traces of the outbreak. .</ P> <P> Dr. Wellman said, adding that based on the uniformity of light absorption, we believe that the outbreak occurred in the hundreds of millions of years ago, during the gas cooling and slow movement, this gas is now in the birth of galaxies from their .hundreds of thousands of light years. .</ P>.

No comments:

Post a Comment