In a dwarf galaxy nearly 400 million light-years from ours, the object recently caught the attention of astronomers. It may be one of the youngest and most powerful pulsars ever discovered. And researchers hope this will help them unravel the mystery of rapid radio bursts (FRB).
His nickname is VT 1137-0337. It nests in a dwarf galaxy that contains about 100 million times moreours and placed about 395 million of our Earth. And according to what the researchers presented in Pasadena (USA) during this is one of the youngest never detected. Pulsar, which is not more than 60-80 years old!
But all this deserves some clarification. First, remember that a neutron star is what’s left of a supermassive star that exploded. Extremely dense residue, because it retains a diameter of only a few tens of kilometers, comparable to the mass of our Sun. And one , is a term used to denote a neutron star that rotates extremely fast around its axis. Sometimes in just a few milliseconds.
What forthink they found in the data VLA Sky Surveyit’s actually what they call a nebula pulsar. It is formed from charged particles accelerated by a powerful one Has close to light after a gave birth to a pulsar. This pulsar wind nebula first appeared in a photo taken in 2018.
The key to the mystery of fast bursts?
However, the neutron star that gave rise to it is probably not so young. Researchers believe that VT 1137-0337 has not appeared before because of itthe radio was to be eclipsed by debris from the initial explosion of a supermassive star. WITH from this shell the radio waves were finally able to reach us.
Note that this is not the first time astronomers have observed a pulsating wind nebula. Known, in the constellation Taurus, is one. She was born from a supernova that appeared in 1054. And remains visible with help amateurish. Difference between and VT 1137-0337 is that the latter is at least 10,000 times more energetic. With a much stronger magnetic field. For which he received the nickname “Big crab” .
And the fact that its magnetic field is so strong can even throw it out of the category of pulsar wind nebula. WT 1137-0337 could hide … a. The same people who are seriously suspected of being behind it . Famous FRBs are so intriguing to astronomers. More than just a magnetar, the VT 1137-0337 would then be neither more nor less than a whole “caught on display”.
Even more exciting,– radio bursts associated with constant radio signals – strongly reminiscent of the properties of this strange object. Which also finally raises the question: can the FRB also find its source in pulsar wind nebulae? Now astronomers intend to keep a close eye on VT 1137-0337 to learn more about this amazing object and its evolution over time.