Newly discovered fast radio burst 190520 exhibits strange behavior

(ORDO NEWS) — The recently discovered Fast Radio Burst (FRB) 190520 exhibits a unique behavior compared to other FRBs discovered so far.

As soon as it begins to seem that there is some kind of pattern in the behavior of the BRV 190520, suddenly a strange outlier appears, which forces us to reevaluate everything that has been studied about it before.

Professor Sarah Burke-Spolaor and graduate student Kshitij Aggarwal, both from the Department of Physics and Astronomy at the Center for Gravitational Waves and Cosmology, are studying the unique behavior of FRV 190520.

In addition, West Virginia University graduate students Jessica Sydnor and Reshma Thomas played an important role in the discovery.

Strange phenomenon

First, BRV 190520 was classified as a repeater. A repeater is a BRV that repeats its pulses randomly. As a rule, FRBs are unpredictable, although repeaters are more reliable, but also rare.

Due to the repetitive behavior, researchers can better focus and observe the data with relative accuracy and map the repetitive bursts, which helps in future observations. FRB 190520 is one of the most active recurring FRBs ever observed.

In addition, this is only the second localized FRB out of more than 20 localized FRBs with a permanent radio source associated with it.

Localization is when the location of the FRB is determined by a very small region in space, linking it to a host galaxy near that location. Observations of the host galaxy BRV 190520 have shown that it is much closer than expected.

In general, she behaved very differently from other BRVs, which caused new questions for the team. Why was this one different from the others?

What makes him behave differently? Is this behavior related to the FRB itself or to its host galaxy? Could this host galaxy give astronomers more clues that could fill in more pieces of the cosmological puzzle?

With each discovery, the puzzle becomes more and more difficult, offering more and more answers to questions regarding the evolution of the universe and not only.

Although this is currently an anomaly, it is quite possible that in five or ten years it may be considered normal as more details about recurring FRBs such as FRF 190520 are revealed.


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