Fast radio burst 121102 emits repeating signals

Fast radio burst 121102 emits repeating signals

Using the Arecibo Radio Telescope in Puerto Rico, researchers have seen fast radio burst (FRB) that continued sending repeated bursts. An event never observed before was discovered when the astronomers were combing through the telescope data from 2015.

Upon assessment, the astronomers came to know about a FRB codenamed as FRB 121102 that emits repeating signals. The findings have been associated different explanations by researchers. One of them is that the events responsible for the bursts could be cataclysmic explosions. But the new study does not support this theory.

Study’s senior researcher Shami Chatterjee from Cornell University said that in their research paper, they have mentioned that either it was an odd coincidence or maybe there are different types of FRBs. These bursts are one of the least-understood events in the universe.

Over the course of two months, astronomers have seen 11 additional bursts having varying level of brightness and different peaks showed up at different wavelengths.

They are so rare that some astronomers even said that they did not exist. FRBs emit a series of energy bursts with each pulse lasting around 1/100 second. The signal keeps on repeating thousands of time each day.

Astronomers said that the sources of these bursts appear to be far out in space, which means that the events are extremely powerful. One of the popular theories is that neutron stars in other galaxies are at the center of FRBs. Astronomers think that it could be a pulsar, a rapidly rotating neutron star.

It has to be known whether FRB 121102 is a typical fast radio burst generator. Most of the other FRBs noticed till date, are more intense by around factor of 10 and appear to originate outside our galaxy. The authors have suggested that FRB 121102 comes from an object inside our galaxy.


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