Staff of the Ionosphere and Radio-Astronomy Section of the Netherlands Postal and Telecommunications Services. The Cosmic Ray Flare on November 12, 1960, and Solar Activity during the Period ...

Wolf 359’s extreme radiation and frequent X-ray flares make life-sustaining atmospheres on nearby planets highly unlikely, ...

Now, this same black hole is once again captivating scientists with an extraordinary gamma-ray flare that’s emitted photons hundreds of billions of times more powerful than visible light.

In 2023, the activity of this black hole increased significantly, associated with a prolonged increase in low-energy X-rays that resulted in new radio flares, according to Gazeta.ru. By April 2023 ...

When Sgr A* feeds on this material, it emits X-ray flares that propagate outwards in all directions. These flares interact with molecular clouds—gas clouds where stars form—in our galaxy's ...

We present a detailed Fermi-LAT analysis to investigate the variability and spectral behaviors of 3C 279 during the γ-ray flares in 2018. In this work, we analyzed the γ-ray spectra and found that the ...