On October 9, 2022, Swift’s X-ray telescope captured the afterglow of the brightest gamma-ray burst ever recorded, called GRB 221009A.
On the morning of October 9, 2022, multiple space-based detectors will detect an intense gamma-ray burst (GRB) passing through our solar system, prompting astronomers around the world to train their telescopes on that part of the sky to make a significant I scrambled to collect a lot of information. event and subsequent data. The gamma-ray burst, named GRB 221009A and likely the birth cry of a new black hole, is the most powerful ever recorded. That’s why astronomers nicknamed it BOAT, or the brightest ever.
The event was soon published in the Astronomers’ Telegram, and now several new papers appearing in a special issue of the Astrophysical Journal Letters have new data from follow-up observations. Findings confirmed that GRB 221009A was indeed her BOAT, and it looked especially bright because its narrow jet was pointing directly at Earth. Eric Burns, an astronomer at Louisiana State University, told New Scientist: “The energy in this object is so extreme that even if you converted the entire sun into pure energy, it would not match this event. Nothing compares.”
But the various analyzes also yield some surprising results that baffle astronomers and could lead to a major overhaul of current models of gamma-ray bursts. For example, a supernova explosion should have occurred weeks after the initial burst, but astronomers have yet to detect it. Radio data from afterglow observations did not match the predictions of existing models. Astronomers have detected a rare extended ring of X-ray light echoes from the first explosion of a distant dust cloud.
As we have previously reported, gamma-ray bursts are very high-energy bursts in distant galaxies, lasting milliseconds to hours. In gamma ray burst he has two classes. Most (70%) are long bursts lasting more than 2 seconds, often with bright afterglow. These are usually associated with galaxies with rapid star formation. Astronomers believe long bursts are associated with the collapse of massive stars to form neutron stars or black holes (or newly formed magnetars). Baby black holes produce jets of high-energy particles that travel at near the speed of light, emitting X-rays and gamma rays powerful enough to penetrate the remnants of the progenitor star.
