амаль радыё Burst FRB 20220610A, the most powerful radio burst ever observed was detected on 10 June 2022. It had originated from a source that existed 8.5 billion years ago when the сусвет was just 5 billion years old which makes the source farthest known for an FRB. The source was thought to be either a single, irregular галактыка or a group of three distant galaxies. However, study of images captured by Купіна telescope on follow-up after its discovery reveals seven sources, one of which was identified as the host галактыка. The host галактыка was also determined to be a star-forming галактыка. The study identified the system as a compact галактыка group whose members showed signs of interaction among themselves. Galaxies in compact groups are uncommon, hence the finding of FRB 20220610A originating in such an environment presents a novel origin of FRBs.
Хуткія радыёўсплёскі (FRB), таксама званыя ўсплёскамі Лорымера, - гэта надзвычай энергічныя ўспышкі радыёхваль. Яны вельмі кароткія і доўжацца некалькі мілісекунд. З моманту яго першага адкрыцця ў 2007 годзе Дунканам Лорымерам было выяўлена каля 1000 FRB.
The fast radio burst FRB 20220610A was detected on 10 June 2022. Four times more energetic than closer FRBs, it was the most powerful fast radio burst (FRB) ever observed. It had originated from its source that existed 8.5 billion years ago when the сусвет was only 5 billion years old. The FRB had travelled for 8.5 billion years to reach Купіна. The source was the farthest known so far for any FRB and thought to be either a single, irregular галактыка or a group of three distant galaxies.
However, sharp images captured by the Купіна telescope on follow-up after its discovery has revealed that the source of FRB 20220610A was not ‘one monolithic галактыка’. Usually, FRBs originate from isolated galaxies. Instead, this fast radio burst had originated from an interacting system of at least seven galaxies in proximity on the path of merging. This development broadens the list of possible sources of FRBs.
The origin and mechanism of formation FBR is not clearly understood. Nevertheless, it is agreed that highly compact bodies like neutron зорка or чорная дзірка are involved in generation of powerful radio blasts. Extreme physics phenomena such as collision of чорная дзірка or neutron зорка, starquakes when the crust of a neutron зорка undergoes sudden adjustments, sudden snaping of tangled magnetic fields of most intensely magnetic type of neutron stars (a process akin to formation of solar flares but at much higher scale), periodic interaction of magnetospheres of a pair of на арбіце нейтрон Лік зорак: are some of possible mechanisms of formation of Fast radio bursts (FRBs).
Навука аб паходжанні і механізме ўтварэння хуткіх радыёўсплёскаў (FRB) у значнай ступені няпоўная, аднак апошняе даследаванне запаўняе некаторы прабел у ведах.
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Спасылкі:
- Каманда місіі НАСА Хабл. Навіны – Хабл знайшоў дзіўны дом самага хуткага радыёўсплёску. Апублікавана 09 студзеня 2024 г. Даступна па адрасе https://science.nasa.gov/missions/hubble/hubble-finds-weird-home-of-farthest-fast-radio-burst/
- Гордан AC, і інш 2023. Хуткі радыёўсплёск у кампактнай групе галактык пры z~1. Прэпрынт arXiv:2311.10815v1. Прадстаўлена 17 лістапада 2023 г. DOI: https://doi.org/10.48550/arXiv.2311.10815
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