Determining the schedule of a star explosion that occurred 670 years ago

Determining the schedule of a star explosion that occurred 670 years ago


Wednesday – 18 Safar 1444 AH – 14 September 2022 AD Issue No. [
15996]

Composite image released by researchers of a starburst (NASA)

Cairo: Hazem Badr

A team of NASA scientists has found enough evidence that they were able to turn back the clock to determine a timetable for a stellar explosion that they believed had occurred 670 years ago. Astronomers usually see the debris of dozens of exploding stars in the Milky Way and nearby galaxies, and it is difficult to determine the timetable for the death of the star, but the data that was available on the remnants of a star explosion (supernova) in a neighboring galaxy using NASA telescopes, enabled them to establish a timetable. Proposal for this explosion.
The “supernova” that the researchers studied is called “SNR 0519”, and is located in the Large Magellanic Cloud, a small galaxy 160,000 light-years from Earth.
During the study published in the latest issue of the Astrophysical Journal, the researchers combined the data of NASA’s Chandra Observatory and the “Hubble Telescope” with the data of the retired Spitzer Space Telescope, to determine the time that elapsed since the star exploded, which resulted in This supernova, and identify the environment in which the supernova occurred. This data provided scientists with an opportunity to “replay” the movie of the starburst that has occurred since then and discover when it began.
A report published by NASA on Monday says that researchers used Hubble images from 2010, 2011 and 2020 to measure the velocities of material in the blast wave, which range from about 3.8 million to 5.5 million miles (9 million kilometers) per hour. They concluded that “if the velocity approaches the upper end of those rated speeds, it may mean that the light from the explosion would have reached Earth some 670 years ago, or during the Hundred Years’ War between England and France.”
The report notes that the researchers found in data from the Chandra Observatory and the Spitzer Telescope, evidence that the material may have slowed down since the initial explosion, and that the explosion occurred 670 years ago. The astronomers found that the brightest X-ray region of the star’s remnant is where the slower-moving material is located, and no X-ray emission is associated with the faster-moving material. A composite image published by the researchers shows X-ray data from the Chandra X-ray Observatory and optical data from the Hubble Space Telescope. shown in white, and visual data showing the contour of the remains in red.


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