Goro Sato

TL;DR: The burst alert telescope (BAT) as discussed by the authors is one of three instruments on the Swift MIDEX spacecraft to study gamma-ray bursts (GRBs) and it detects the GRB and localizes the burst direction to an accuracy of 1-4 arcmin within 20 s after the start of the event.

TL;DR: The hard X-ray detector (HXD) on board Suzaku as discussed by the authors was designed to achieve an extremely low in-orbit background based on a combination of new techniques, including the concept of well-type active shield counter.

TL;DR: In this article, the authors reported that SGR1806-20, a soft γ-ray repeater in Sagittarius, released a giant flare that has been called the brightest explosion ever recorded.

TL;DR: X-ray observations of the core of the Perseus cluster reveal a remarkably quiescent atmosphere in which the gas has a line-of-sight velocity dispersion of 164 ± 10 kilometres per second in the region 30–60 kiloparsecs from the central nucleus, infering that a total cluster mass determined from hydrostatic equilibrium in a central region would require little correction for turbulent pressure.

TL;DR: The second Swift Burst Alert Telescope (BAT) catalog of gamma-ray bursts (GRBs) as discussed by the authors contains 476 bursts detected by the BAT between 2004 December 19 and 2009 December 21.