A new image of SNR 0519-69.0 shows the debris of a star that exploded several hundred years ago in Earth’s timeframe. The explosion of a white dwarf star, after reaching a critical mass, created SNR 0519-69.0. This new image contains X-ray data (green, blue, and purple) from Chandra and optica
Astronomers combined X-ray data from Chandra with those from other telescopes to determine how long ago the star in the supernova remnant called SNR 0519-69.0 exploded and learn about the environment the supernova occurred in. These images show X-ray data from Chandra and Hubble’s optical data of the remnant’s perimeter and surrounding stars. Astronomers concluded that the white dwarf that created this remnant exploded no more than about 670 years ago as seen from Earth.
This is a special kind of supernova known as a “Type Ia” that astronomers use to measure distances across the Universe.and nearby galaxies, it is often difficult to determine the timeline of the star’s demise. Usingtelescopes to study the spectacular remains of a supernova in a neighboring galaxy, a team of astronomers has found enough clues to help wind back the clock.
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