Fragment of a young galaxy was the most distant object in the Universe


17/11/2012

Scientists have discovered a galactic fragment formed after the Big Bang, after 420 million years old and located at a distance of 13.3 billion years of our Earth. If the calculations of astronomers are correct, the object is the most distant of those who were once found.

The study authors found an object that is designated after MACS0647-JD, analyzing the footage that was made in the framework of the project CLASH telescope "Hubble". Participants of the project are studying distant objects whose radiation is increased by the effect of the interaction of light with an attractive field of supermassive cosmic bodies, in other words - the gravitational lensing.

The study MACS0647-JD has penetrated through the gravitational lens formed MACS J0647 +7015 (galactic cluster), thus in turn to examine its characteristics. It turned out that MACS0647-JD looks like not a big galactic fragment, the length of which 600 light-years.

One of the authors of Dan Coe said - "This place is a building block of the galactic. During his 13 billion years of existence, he and hundreds of thousands of times could merge with other galaxies or their fragments. " The previous galaxy, which was also discovered in the course of work CLASH and was the most distant, formed 70 million years later than MACS0647-JD.

The indicator of redshift of the object is represented by eleven, it indicates either wash away its great distance, or that it only emits radiation in the red region of the spectrum. However, the results of observation telescope, "Spitzer" it became clear the detected object belongs to the young galaxies, but not to the red dwarfs, despite the fact that the distance to it totally does not confirm this hypothesis.


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