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They discover 20 exploded stars in the Andromeda galaxy KXan 36 Daily News

Date: May 20, 2024 Time: 09:07:15

An international team of astronomers, as part of a large-scale study on the origin and properties of cosmic ultraviolet radiation, has identified 20 supernova remnants located in the Andromeda galaxy.

Phys.org talks briefly about the discovery, and the researchers’ paper can be found on the arXiv preprint server. Scientists have identified 20 supernova remnants (SNR) in the Andromeda galaxy using data obtained with the AstroSat satellite.

Astronomers explain that SNRs are diffuse, expanding structures that result from a supernova explosion. They contain material ejected by the explosion and gradually expanding into space, as well as other interstellar material that was torn from the star by the shock wave.

These structures play a key role in the evolution of galaxies, as they scatter heavy elements into space, which are formed during a supernova explosion. They also create and maintain the energy needed to heat the interstellar medium. By the way, it is believed that it is the SNR that is responsible for the acceleration of galactic cosmic rays. That is why its study is so important for astronomers.

In this case, it was not only possible to detect supernova remnants that actively emit ultraviolet radiation. The data obtained formed the basis for the creation of the first complete catalog of extragalactic SNRs. We add that the ultraviolet images of the Andromeda galaxy were obtained using the Ultraviolet Imaging Telescope installed on AstroSat.

At the same time, scientists already knew exactly where to look for objects of interest to them. The latter were previously noted by X-ray, optical and radio observations. In a new study, their existence was confirmed and they were also accurately identified as SNR with diffuse radiation.

It is also worth mentioning that the research team initially had 177 possible fuzzy UV SNR candidates. However, the analysis showed that of this entire sample, only 20 supernova remnants turned out to be “emitters” of ultraviolet radiation.

* This website provides news content gathered from various internet sources. It is crucial to understand that we are not responsible for the accuracy, completeness, or reliability of the information presented Read More

Hansen Taylor
Hansen Taylor
Hansen Taylor is a full-time editor for ePrimefeed covering sports and movie news.

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