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Quasi-periodic explosion events occurring at the center of the galaxy GSN 069.


Quasi-periodic explosion events occurring at the center of the galaxy GSN 069.

Researchers used data from the ESA XMM-Newton satellite and the NASA lunar spacecraft to investigate the behavior of quasi-periodic explosions that occur at the center of the GSN 069 galaxy, the results of the study were published July 15 on arXiv.org It was found that quasi-periodic explosion events occurring at the center of the Milky Way are associated with central supermassive black holes. The quasi-periodic outburst in the GSN 069 galaxy was first observed by ESA’s XMM-Newton X-ray space observatory, on 24 December 2018 researchers detected two quasi-periodic bursts in nine hours, the total time of these bursts 1 was between 5.5 years to.

As revealed by XMM-Newton observations in December 2018, the TS X-ray light curve of the GSN 069 galaxy displays high-amplitude, short-lived X-rays, which are recurring every nine hours, with GSN 069’s QPE being the highest. Tough were producing an increase in X-ray count rates by up to two orders of magnitude. A group of astronomers led by Giovanni Minuiti of the Spanish Astrobiology Center analyzed data from XMM-Newton and Chandra, collected between 2010 and 2021, to learn more about GSN 069’s quasi-periodic eruption.

QPE measured at higher energies is stronger, is at its first peak, and has a shorter duration than those measured at soft energies, the research found, adding that GSN 069’s X-ray emission re-brightened significantly. Is. The researchers suggest, that the QPE property of GSN 069 and the longer period X-rays can be explained by a scenario in which a binary consisting of two white dwarfs (WDs) is captured by a SMBH whose tidal forces are the same. while the other forms a binary on a highly eccentric orbit with SMBH.