in 2007, from the depths of the universe by radio telescopes astronomers received strong radio signals, whose duration is very short, later astronomers call it quick radio(frb).because of their time is very short, and the same signal not repeated, so it is difficult to search to their source.
until recently, astronomers to detect duplicate radio bursts frb-121102.this signal in 2012 by the arecibo radio telescope detected for the first time since then, it's been detected repeated 15 times, this is the only confirmed repeated rapid radio bursts.according to the analysis, the signal from 30 light-years away a dwarf galaxies.
a quick radio bursts frb 121102
recurring frb 121102 showed that the rapid radio is not generated from the disaster.as a result, it can eliminate by the black hole or neutron stars collide, resulting in rapid radio critical theory.in addition, the astrophysicist in harvard university, believes that this could be an alien civilization using energy promote large sail light beam.even so, the frb 121102 how reproduced remains to be seen.
according to have just published in the journal"nature"(nature), a new study, the mystery of the frb 121102 may consist of a neutron star produced near the supermassive black hole.the netherlands radio astronomy research institute astronomer jason hessels leadership team, analyzes the 16 times recorded so far frb 121102 signals, and the repetitive positioning of signals in a star forming region of dwarf galaxies.astronomers said said that at present, the origin of this quick radio bursts, the nature of the constant source and other space environment is not clear.the data, however, some of the clues to help narrow the scope.
analysis shows that frb 121102 radio waves are angled polarization shows extreme speed rotation, coupled with its short duration shorter and repetition frequency, the source of the rapid radio bursts has a very high temperature and strong magnetic field.according to the features of these extremely obvious, the astronomers infer the signal source is a neutron star.in addition, the polarization surface is relatively rare, so far, this kind of situation only occurred near the large black hole.therefore, the frb 121102 is likely to be produced by neutron stars near the large black hole.
however, the current data is not enough to go to rule out the possibility of the other.researchers noted that this can be explained by several other conditions, such as high magnetized nebula or around the young supernova remnants of a neutron star.