New unusual repeating fast radio burst detected 3 billion light-years away – CNN
Fast radio bursts are millisecond-long bursts of radio waves in space that repeat multiple times. Scientists have yet to determine the cause of these bright, intense radio emissions.
Astronomers detected a burst of radio waves coming from a distant dwarf galaxy in May 2019. They used the Karl G. Jansky Very Large Array and Subaru Telescope to pinpoint the source of the radio waves.
The VLA observations revealed that the celestial object constantly released weaker radio waves between the repeating bursts, which was very similar to only one other known repeating fast radio burst.
Theorists are trying to explain why fast radio bursts and persistent radio sources are found together sometimes.
FRB 190520 is the only persistently active fast radio burst, while FRB 121102 can turn off for months.
Astronomers have found that fast radio bursts can repeat, raising the question of whether there are two kinds.
Scientists believe that fast radio bursts are caused by remnants of supernovae or neutron stars with strong magnetic fields.
FRB 190520 may be a new type of radio source, caused by material released by a supernova, which resulted in the creation of a neutron star. The bursts from FRB 190520 may decrease as it ages.
For more on this story, please consider these sources:
- New unusual repeating fast radio burst detected 3 billion light-years away CNN
- Astronomers ponder ‘cosmic mystery’ over powerful radio wave bursts Reuters
- Astronomers Discover Mysterious Repeating Bursts of Radio Waves From Outer Space SciTechDaily
- A New Mystery Signal Is Repeating From a Distant Galaxy, And It’s a Weird One ScienceAlert
- Strange radio burst raises new questions Phys.org
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