Using NASA's Chandra X-ray observatory, astronomers have spotted X-ray-emitting clumps being ejected with high velocities from the gamma-ray binary PSR B1259–63/LS 2883. The findings were presented in a paper published ...
Electromagnetic radiation is pervasive. It comes in many forms, including radio waves, microwaves and high-energy X-rays and gamma rays. But what, precisely, is it?
Optics & Photonics
Mar 8, 2018
0
19
Some theories of the early universe predict density fluctuations that would have created small "primordial black holes," some of which could be drifting through our galactic neighborhood today and might even be bright sources ...
Astronomy
Feb 22, 2018
0
60
Researchers have identified a new blazar-like narrow-line Seyfert 1 galaxy that emits gamma-ray radiation. The new galaxy, designated SDSS J211852.96−073227.5, could offer insights into formation and evolution of jets of ...
Discarded plastic bottles could one day be used to build stronger, more flexible concrete structures, from sidewalks and street barriers, to buildings and bridges, according to a new study.
Engineering
Oct 25, 2017
0
30
Lightning can produce X-rays and gamma radiation. In the past, researchers thought that this phenomenon only lasted for a very short time, about one ten-thousandth of a second. However, the ionizing radiation of lightning ...
Earth Sciences
Oct 24, 2017
0
62
A study which is published in Nature magazine with observations from the robotic telescope MASTER-IAC at the Teide Observatory will help to clear up some unknown factors in the initial phase and the evolution of the huge ...
Astronomy
Oct 13, 2017
0
56
Researchers at IMS and their coworkers have shown theoretically and experimentally that a high energy electron in circular/spiral motion radiates vortex photons from the radio wavelength to gamma rays. This greatly broadens ...
Optics & Photonics
Jul 21, 2017
4
89
Extraordinary decontamination efforts are underway in areas affected by the 2011 nuclear accidents in Japan. The creation of total radioactivity maps is essential for thorough cleanup, but the most common methods, according ...
General Physics
Mar 22, 2017
0
24
The search for mysterious "fast radio bursts" – very brief but intense pulses of radio waves from outer space – is heating up. Nobody knows what causes these powerful bursts, but some have even speculated that the signals ...
Astronomy
Nov 18, 2016
0
87
