The fragile, colorful bubble in space conceals the remnants of a supernova
The vivid flash of a star explosion billions of years ago was photographed by NASA telescopes, offering fresh light on the genesis of such cosmic relics.
A star explodes in a brilliant explosion known as a supernova as it reaches the end of its existence. White dwarfs are stars that have burned through most of their nuclear fuel and shed their outer layers. White dwarfs are among the most stable stars since they have reduced to a small size and can persist for billions or even trillions of years.
When a white dwarf passes close enough to a nearby star, it may suck off too much material, causing the companion to become unstable and explode, resulting in a Type Ia supernova. According to a release from NASA’s Chandra X-ray Observatory, a star remnant formally known as G344.7-0.1 is located around 19,600 light-years from Earth and is expected to be between 3,000 and 6,000 years old.
The New Composite Image
The star remnant is captured in X-ray, infrared, and radio wavelengths in a new composite image. The detailed image was created using data from NASA’s Chandra X-ray Observatory and Spitzer Space Telescope, as well as the National Science Foundation‘s Very Large Array and the Australia Telescope Compact Array.
The new picture of G344.7-0.1 reveals that after the initial star explosion, stellar debris flows outward before encountering resistance from the surrounding gas. According to the statement, this resistance slows the debris, causing a reverse shock wave that flows back toward the center of the explosion, heating the material along its path.
“This process is similar to traffic congestion on a highway,” Chandra personnel stated in the statement. “As time goes, a large number of automobiles will slow down or stop behind the accident. This leads the traffic bottleneck to flow backward.” “The debris is intensified to millions of degrees and glows in X-rays as a result of the reverse shock.”
G344.7-0.1 is quite old than other well-known Type Ia supernova remnants that hold burst within the last hundreds of years or so and are yet to experience the same reverse shock wave that warms the debris in the remnant’s core. As a result, G344.7-0.1 observations shed fresh light on Type Ia supernova remnants’ later evolution stages.
The supernova remnant also contains iron around its core, which is encircled by arc-like structures containing silicon, according to Chandra X-ray data. According to the statement, the data suggests that the reverse shock wave heated the regions containing iron more recently, corroborating Type Ia supernova models that anticipate heavier elements, such as iron, are created at the centre of these star explosions.