Holder added that the small flashes of blue light caused when a gamma ray hits the atmosphere last only a few billionths of a second. The VERITAS cameras take 200 photographs a second. He and his team developed software that would sift out the gamma rays from all of the background noise...
The brightest gamma ray burst ever detected recently reached Earth. It’s 70 times longer than any other burst we’ve spotted.
The first observation of a GRB came onJuly 2, 1967, thanks to the Vela 4A satellite, part of a series of X-ray, gamma-ray, and neutron-detecting spacecraft designed to monitor any nuclear testing by the Soviet Union or other nations. The GRB was documented in 1969 and was revealed in...
2. Young supernova remnants as ideal proton accelerators viewed at gamma-ray energies 2.1. SN 1987A Located in the Large Magellanic Cloud at only 50 kpc from Earth, SN 1987A is the closest observed with modern telescopes. After evolving for nearly three decades, the radio flux has been stea...
The main purpose of the collimator is to shield the LED array from X-rays coming outside the Earth horizon, called the Cosmic Diffuse X-ray Background (CDXB). The hopper walls upwards from the detector array boundary at an angle of +−40° inclined from the nadir axis define the MXGS...
That was an underwhelming performance... I was expecting a lot more out of you.Gamma 2 in Dragon Ball Super: Super Hero Gamma 2 (ガンマ2号, Ganma Ni-Gō, lit. "Gamma No. 2") is a Red Ribbon Army Android created by Dr. Hedo, along with Gamma 1. Despite h
(Color online) (a) The principle of Compton imaging with three-layer detectors; (b) the possible types of gamma-ray interaction in a SiPM array detector.图1(b)列出了在每层SiPM阵列探测器上可能发生的作用事例类型. 其中, 单像素吸收表示γ光子仅在单个闪烁体像素上作用并将能量完全沉积; 单像素散射...
(blue material in central panel). The equatorial and polar material crashes together at their intersection, producing shocks and gamma-ray emission (red regions in central panel). Finally, at later times, the nova stops blowing a wind, and the material drifts off into space, the fireworks ...
A particularly important potential astrophysical signal is a monochromatic γ-ray line, with energy corresponding to the mass of the annihilating dark matter. The discovery of such a line would be a "smoking gun" signature of dark matter because no astrophysical backgrounds are known to generate a...
ray Space Telescope. Fermi also uses silicon-based detectors, but its sensors are comprised of silicon strips that are assembled in layers. These layers cross one another perpendicularly to create a grid that pinpoints the locations of high-energy particles created when a gamma ray hits a ...