Tomasz Nowakowski is a member of the physics.org community.
An international team of astronomy looked at a superluminous supernova. The results of the study show that the supernova is carbon-rich. There was a paper published on the arXiv pre-print server.
A stellar explosion called a nova is powerful and Luminous. They offer important clues into the evolution of stars and the universe. The two groups are based on their atomic spectrum. The type I and type II have hydrogen in their spectrum.
The light curves of superluminous supernovae are bright. The interaction of the SN ejecta with the surrounding circumstellar material is thought to be an efficient way to convert the ejecta's energy into radiation.
On October 14, 2020, the ZTF detected a magnitude of 19.7. At a redshift of 0.032, it was suggested that it was a type I supernova. There is a faint galaxy known as WISEA J034638.
The results of new observations of SN 2020wnt will be presented by a group of scientists. The vast majority of these observations were carried out by two wide-field surveys.
Light curves of SN 2020wnt show an early peak followed by a slow rise over the course of five days. The peak is reached at different times, occurring faster in the bluer bands, while the absolute magnitude is recorded some 77 days after the blast.
Light curves show a decline in all bands after the explosion. There was a sudden drop in brightness from the 273rd day after the explosion. The last observation made by Gutiérrez's team, which began 350 days after the explosion, showed an increase in brightness.
Clear lines of ionized carbon and Silicon are visible in the optical spectrum of SN 2020wnt, while the classical oxygen lines are not. The temperatures of this SN were below 10,000 K.
The paper concluded that SN 2020wnt is a carbon rich SLSN. They assume that the progenitor had a mass of around 80 solar mass, a radius of 15 solar radii, and an explosion energy of at least 45 sexdecillion erg.
More information: C. P. Gutiérrez et al, SN 2020wnt: a slow-evolving carbon-rich superluminous supernova with no O II lines and a bumpy light curve. arXiv:2206.01662v1 [astro-ph.HE], arxiv.org/abs/2206.01662There is a science network.
All Rights Reserved © 2024
