Fast radio bursts (FRBs), known for their brief but powerful emissions of radio waves, have trace to extremely compact cosmic objects, including neutron stars and potentially black holes.
These bursts, lasting only a millisecond, carry immense energy, rivaling the brightness of entire galaxies.
Their origins have long puzzle astronomers, with discoveries ranging from our galaxy to distances of 8 billion light-years.
A recent breakthrough has narrow down the source of at least one FRB to a highly magnetic region surrounding a neutron star.
As per study, the team from the Massachusetts Institute of Technology (MIT) examine FRB 20221022A, a burst detect from a galaxy 200 million light-years away.
By analysing its scintillation, a phenomenon causing light to appear to twinkle, the researchers identified the origin as being within 10,000 kilometres of a neutron star, an area known as the magnetosphere.
This marks the first conclusive evidence of FRBs emerging from such a region.
As per other report, the study reveal that the burst exhibite steep variations in brightness, indicative of scintillation cause by gas within its host galaxy.
This gas serve as a lens, allowing researchers to determine the burst’s proximity to its source.
Lead author Dr. Kenzie Nimmo from MIT told the publication the significance of locating the origin within hundreds of thousands of kilometres from the source, contrasting it with theories suggesting farther shockwave origins.
Collaborators from McGill University find the burst’s light to be highly polarise, forming an S-shape curve, a feature characteristic of rotating neutron stars, also known as pulsars.
This finding further supports the conclusion that FRBs originate from highly magnetise environments.
The study, involving experts like Dr. Kiyoshi Masui and many others, highlights the potential of scintillation as a tool for pinpointing FRB origins.
These findings pave the way for understanding the diverse physics behind these enigmatic bursts, which are detect daily by advance telescopes like CHIME.
