For the second time, science has found a source of mysterious radio waves
Until now, we still don't know what caused the FRB radio booms.
Scientists have just marked the strange radio signal on the Universe, coming to the galaxy to emit it. This is the second time we have found the specific (near) location of the signaling place, but this time different: we may have to rethink the possible origin of the fast radio waves. - fast radio burst (FRB).
Although FRB appears a lot in the universe, we still don't know what causes them.
Exploding fast radio waves, waves of radio waves appear only in a millisecond to a few milliseconds (milliseconds), caused by a tremendous energy generation process in the Universe unknown
At the source, these FRBs are extremely powerful, with research showing that FRB's energy is equivalent to what the Sun emits during a full day of operation. But when we discovered FRB, they were very weak; According to the Australian professor of astronomy Matthew Bailes, the signal strength FRB is weaker than the mobile signal sent from the Moon to 1,000 times.
The FRB signal is still strong enough, appearing long enough to be different from all the radio waves that appear in the Universe. It is estimated that about 2,000 FRB still appear daily.
Keep talking about new research. On September 24, 2018, in just about 1.3 milliseconds, a wave of radio waves swept across the Earth. Fortunately, all 36 antennas in the system of Staging the Find Square Kilometer (ASKAP) are in the same direction, right in the area where FRB appears.
Scientists combined data from the entire antenna array, calculating the starting position of FRB: in a galaxy about 4 billion light-years away, FRB emits from the point of the galactic center that's about 13,000 light years.
' This is a very remarkable technological milestone ,' said Shami Chatterjee from Cornell University.
Seamless antenna of ASKAP.
Since 2007, when the first FRB was discovered, we discovered 85 additional waves of radio waves. But it was just following 2 waves coming to their houses: one was discovered in 2012 under the name FRB 121102 , while the newly discovered wave was named FRB 180924 .
The wave discovered in 2012 is one of two waves of repetitive nature, constantly signaling, so it is easier to find its source. But FRB 180924 is much different, when the galaxy emits it 30 times brighter than the galaxy of FRB 121101. The FRB loop is located in an area where radions are frequently illuminated, while FRB 180924 is located at the edge of its galaxy.
This difference is important because even though FRB appears a lot in the Universe, we still don't know what causes them. Thanks to the discovery of the source of FRB 121102, we started to have a little hypothesis but with the appearance of FRB 189024, we have new information to study.
There is still a lot of controversy surrounding whether all FRBs come from some kind of space object (neutron star, cosmic black hole, etc.), because most of them are not repetitive. The difference between FRB 121102 and FRB 189024 further complicates matters.
In the immediate future, we have two different types of FRB, it is not clear whether there must be several dozen types of FRB in the immense Universe. We need to find the source of more FRBs to make sure.
FRB also has another meaning: when FRB flies across the Universe, it will carry the signal on its path. Scientists can use those signals to calculate the gravitational force in space, better understand the nature of the Universe and the space between galaxies.
Radio booms exist only for a few milliseconds, but are extremely important.
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