Through. the use of a different technique which had aroused some skepticism, a team of astronomers shed light on a period in the evolution of the universe that was supposed impossible to observe with current technology. They used the Hubble Space Telescope and found a signal wavelength of an extremely bright galaxy 13 billion light 400 million years, according to a study released today by the Astrophysical Journal. The margin of error is up to 5 million light years or so.
The discovery exceeds all records of time and space and may limit the scope of any observation for years, until it is released a new more advanced space telescope, the team of astronomers said.
with that signal light, the astronomers could produce a photograph of this galaxy semiborrosa. It seems dark and amorphous, but actually emits a bright blue light, but the light has traveled so long through such a distance that has changed towards the end of the solar spectrum to dark red. The galaxy is an incubator of stars ten times more active than our Milky Way, Gabriel Brammer said study co-author and astronomer at the Space Telescope Science Institute.
“Create stars frantically” he said. “We are getting closer to when we assume that the first stars were formed. There is a very large temporal distance between this galaxy and the Primordial Explosion “.
If we could take us back in time to approach the new galaxy (named GN-z11), we would see” young blue stars and really bright “, and around us” objects very chaotic appearance “that are forming galaxies, he said co-author Garth Illingworth of the University of California, Santa Cruz.
astronomers measure the distance of objects by calculating the rate of change of light from blue to red of the electromagnetic spectrum, astronomers call redshift or “redshift”. The distant galaxy has a redshift discovered 11.1. The farthest detected before was 8.68, about 580 million years Primordial Explosion. The new discovery surpasses all efforts of competing groups of astronomers who sought a redshift of 9, said study lead author, Pascal Oesch, Yale.
An astronomer competitor, Richard Ellis, in Southern Observatory European, who held the previous record, expressed skepticism. He said light signals used by Oesch teams were more difficult to interpret. He added that for GN-z11 was so visible, would have to be three times brighter than typical galaxies.
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