20 September 2017
A new way to 'weigh' extragalactic black holes
... to occur near the central nucleus of a galaxy and by looking at prominent peaks in the spectral energy distribution of the X-ray flare (which gave an indication to the processes that were occurring) compared with the mass accretion rate of the...
28 February 2018
Habitability of nearest exoplanet in doubt after powerful flare
.... It is already known that Proxima Centauri experiences regular, although smaller, X-ray flares and indeed this event was also preceded by a smaller flare. Combined together the two flares lasted fewer than two minutes, but at its most energetic...
August 2019
Lessons from the Sun
... monitors saw readings go off the charts and the first ever recorded gamma-ray flare photons were detected. Within a few minutes, in-orbit X-ray sensors saturated and military radio communications blacked out. Lacking today’s sensors...
June 2019
Solar superstorms and their effects on Earth
... have estimates of 2500-3000 km/s for the speed of the 1859 CME and an estimated X-ray flare size of about X45 (flares are rated by their X-ray intensity on a scale much like the Richter scale for earthquakes, in that it scales in powers...
25 August 2016
Earth-sized planet found around our nearest neighbouring star
... in a liquid state. Nonetheless, despite having a pleasant temperature, the planet could be subjected to intense ultraviolet and x-ray flares from its parent star, due to its close proximity. "The discovery of the potentially habitable planet around...
