Science

Giant telescope in China receives repetitive signals from space

In 2016, the largest radio telescope in the world – Sky Eye (FAST) with an antenna diameter of 500 meters, was commissioned in a remote province of China. According to Science Alert , now repeating fast radio bursts from a certain area in the sky are recorded on this telescope.

Fast radio bursts (FRB) are single short radio pulses that are constantly recorded by various earth observatories. Their nature is still unknown. Scientists suggest that this can be both echoes of the last breath of an evaporating black hole, and the result of the merger of two neutron stars.

What is interesting in the case of FAST is that it captures a repeating radio burst of FRB 121102. It was first observed in 2012 at the Arecibo Observatory. Three years later, a new radio burst was obtained from the same position in the sky and with the same scattering indices. In 2015, six more new bursts of FRB 121102 were recorded. In 2017, another 15 outbursts were identified. In 2018, in one hour of observations, 21 lines of fast radio bursts were caught. Since August 30, Heavenly Eye has been listening towards FRB 121102. For September 3, 20 impulses were recorded.

Astronomers believe that they can come from a dwarf galaxy 3 billion light-years distant from us. Scientists hope to hear more information from this source in order to put forward more plausible theories about the origin of the source FRB 121102.

“I think it’s so amazing that nature creates something similar,” says physicist Ziggy Plevnis. – This structure has very important information, we simply must understand how to decode it. It would be very fun to find out what it is.

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