Mabilis radyo 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 sansinukob 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 kalawakan or a group of three distant galaxies. However, study of images captured by Hubble telescope on follow-up after its discovery reveals seven sources, one of which was identified as the host kalawakan. Ang nagpadaos kalawakan was also determined to be a star-forming kalawakan. The study identified the system as a compact kalawakan 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.
Ang mga fast radio burst (FRBs), na tinatawag ding Lorimer Bursts ay sobrang masiglang flash ng mga radio wave. Ang mga ito ay napakaikling tumatagal ng ilang millisecond. Mula noong una itong natuklasan noong 2007 ni Duncan Lorimer, humigit-kumulang 1000 FRB ang natukoy.
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 sansinukob was only 5 billion years old. The FRB had travelled for 8.5 billion years to reach Hubble. The source was the farthest known so far for any FRB and thought to be either a single, irregular kalawakan or a group of three distant galaxies.
However, sharp images captured by the Hubble telescope on follow-up after its discovery has revealed that the source of FRB 20220610A was not ‘one monolithic kalawakan’. 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 bituin or Black hole are involved in generation of powerful radio blasts. Extreme physics phenomena such as collision of Black hole or neutron bituin, starquakes when the crust of a neutron bituin 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 orbiting neutron bituin are some of possible mechanisms of formation of Fast radio bursts (FRBs).
Ang agham ng pinagmulan at mekanismo ng pagbuo ng mabilis na pagsabog ng radyo (FRBs) ay higit na hindi kumpleto gayunpaman ang pinakabagong pag-aaral ay pinupunan ang ilang puwang sa kaalaman.
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Sanggunian:
- NASA Hubble Mission Team. Balita – Nakahanap ang Hubble ng Kakaibang Tahanan ng Pinakamalayong Mabilis na Pagsabog ng Radyo. Nai-post noong 09 Enero 2024. Magagamit sa https://science.nasa.gov/missions/hubble/hubble-finds-weird-home-of-farthest-fast-radio-burst/
- Gordon AC, et al 2023. Isang Mabilis na Pagsabog ng Radio sa isang Compact Galaxy Group sa z~1. Preprint arXiv:2311.10815v1. Naisumite noong 17 Nob 2023. DOI: https://doi.org/10.48550/arXiv.2311.10815
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