NASA telescope detects remnant spots of a supernova in colorful bubble


Washington: NASA telescopes have captured the colorful bursts of a stellar explosion thousands of years ago, shedding new light on the evolution of such cosmic remnants.

According to a statement from NASA’s Chandra X-ray Observatory, the stellar remnant – formally known as G344.7-0.1, located at a distance of about 19,600 light-years from Earth, is believed to be 3,000 km away. is more than 6,000 years old.

Data from NASA’s Chandra X-ray Observatory and Spitzer Space Telescope, along with the National Science Foundation’s Very Large Array and the Australia Telescope Compact Array, captured views of stellar remnants in X-ray, infrared and radio wavelengths, reported Space.com. Went.

The new view from G344.7-0.1 shows that stellar debris expands outward after the initial stellar explosion, then encounters resistance from the surrounding gas. According to the statement, this resistance slows down the debris. Creates a reverse shock wave that travels back toward the center of the explosion, heating the surrounding debris in its path.

The process is similar to a traffic jam on a highway, where over time an increasing number of cars will stop or slow down behind the crash, causing the traffic jam to drive backwards, Chandra personnel wrote in the statement.

The reverse shock heats the debris to millions of degrees, causing it to glow in X-rays.

In addition, Chandra X-ray data showed that the supernova remnant contained iron near its core, surrounded by arc-like structures containing silicon.

Data published in The Astrophysical Journal show that regions containing iron were recently heated by a reverse shock wave, supporting Type Ia supernova models that predict heavy elements such as iron at the center of these stellar explosions. Huh.

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