An amateur astronomer captures a supernova while testing his new camera

The finding has been published in the latest issue of the journal ‘Nature’ and offers new insights into the structure of the exploding star.

Image of the new supernova

The latest edition of the magazine Nature collects this week the birth of a new supernovacaptured fortuitously by an amateur astronomer who was testing a new camera.

This chance observation provides an opportunity to learn more about the properties of the star that exploded and offers new insights into supernova evolution. The surge of light at the birth of a new supernova can provide information about the final evolution and structure of the exploding star.

However, it is difficult to predict when supernovae will explodewhich makes it difficult to detect this brief phase of “discharge break“. Most supernovae are observed at an undetermined time after the explosion.

On September 20, 2016, the amateur astronomer Víctor Buso was testing a new telescope-mounted camera pointed at a spiral galaxy called NGC 613 while a supernova was born.

Less than a day later, Melina Bersten and her colleagues conducted extensive monitoring of the supernova and studied their evolution. The brightness of the light emitted by the exploding star increased very rapidly, a signal that the authors suggest corresponds to the long-sought breakup phase of the shock.

They classify the explosion as a type IIb supernova and their analysis suggests that the parent star was slightly more massive than another well-studied type IIb supernova, known as SN 2011dh.

In addition, modeling based on discovery data allows authors distinguish between different phases of evolution of supernova that are regulated by different physical processes. The authors conclude that further analyzes of the shock rupture signal could potentially provide more information about the parent structure and the physical processes that occur during the shock. shock emergency.

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