Astronomers have created the first three-dimensional simulation of a supernova vergaray object that is about one hundred times brighter than the typical supernova. Their model they described in the article in the journal Astrophysical Journal.
For more than ten years of ultra-bright supernovae remain a mystery for astronomers. While some of their characteristics are somewhat similar with the characteristics of normal supernovae, they are shining in the sky is much brighter — at least ten times. Received by the telescopes the data indicate that there are several possible mechanisms of formation of such objects. One of them suggests that eruptions occur when during the collapse of a massive star is formed Magnetar — a rapidly rotating neutron star whose magnetic field trillions of times stronger than earth’s. When the Magnetar emits wind from accelerated to high speeds of charged particles, its rotation is braked and released when the energy heats the surrounding matter and causes it to glow brightly. However, this scenario is only a hypothesis, and to better understand the processes that occur with ultra-bright supernovae, scientists need the modeling.
A group of researchers from Austria, USA and Taiwan, under the leadership of Ke-Jung Chen (Ke-Jung Chen) of academia Sinica has established the first three-dimensional hydrodynamic simulation of a supernova sviryanki. They put the Magnetar radius of about 10 kilometers to the center of the dust formation radius of about 15 billion kilometers. Scientists say that such works require a lot of computing power so they used a supercomputer, owned by the National energy research computing center.
Using the model, astronomers have tracked the evolution of the object during the first 200 days after its formation that allowed them to observe the formation of a shock wave on the step explosion and acceleration of surrounding matter magnitnym wind. The simulation showed that the residual shell arise SuperBright supernova hydrodynamic instability, and on two scales. The first occurs in the hot bubble of matter, warmed by the Magnetar, and the second occurs when the shock wave of a young supernova collides with gas and dust in interstellar space. Because of this residual substance is mixed much stronger than in the case of an ordinary supernova that may determine the spectrum and light curve of the event.