How close can you be to a gamma-ray burst, and it’s starting to cause you a problem?Dr. Pamela Gay: If you had one within a few thousand light-years of Earth pointed at us, it could ionize the side of our atmosphere it struck, which would be bad for everyone on the planet....
The brightest gamma ray burst ever detected recently reached Earth. It’s 70 times longer than any other burst we’ve spotted.
University of Copenhagen, have developed a method to classify all gamma-ray bursts (GRBs), rapid highly energetic explosions in distant galaxies, without needing to find an afterglow—by which GRBs are presently categorized. This breakthrough, initiated by first-year B.Sc. students, may prove k...
Cosmic powerhouse: An artist’s view of the nuclear region of an active galaxy: a disk of accreting material (brown/yellow) spirals in onto the central supermassive black hole (black). A powerful, collimated radio jet (blue) is launched perpendicular to the disk. Inside the jet gamma-ray p...
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 his original purpose, he was designed by Hedo to appear and act much like a superhero. He serves as one of the misguided
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...
ray diffraction patterns Shimadzu equipment utilized Cu-K (a). In addition, the surface morphology of melanin generated was examined using a scanning electron microscope (SEM, ZEISS-EVO 15-UK). To analyze the composition of elements constituting the extracted melanin, the Energy Dispersive X-ray ...
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...
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 ...
To help explain this paradox, the integrity of theT. gammatoleranschromosome can be questioned, since this strain has been isolated after gamma ray irradiation of 30 kGy. Several lines of evidence indicate that the chromosome did not undergo notable rearrangements: first, chromosome reconstitution kin...