In laser facilities in the UK, Imperial physicists are testing an 84-year-old theory which was once thought impossible to prove.
Optics & Photonics
Mar 20, 2018
0
655
Researchers from the University of Amsterdam's (UvA) GRAPPA Center of Excellence have just published the most precise analysis of the fluctuations in the gamma-ray background to date. By making use of more than six years ...
Astronomy
Dec 19, 2016
36
3019
Astronomers from the Chinese Academy of Sciences (CAS) and elsewhere report the detection of a new ultra-high energy (UHE) gamma-ray source in the Galactic plane. The newly identified source, designated LHAASO J0341+5258, ...
Racing across the universe for the last 7.3 billion years, two gamma-ray photons arrived at NASA's orbiting Fermi Gamma-ray Space Telescope within nine-tenths of a second of one another. The dead-heat finish may stoke the ...
General Physics
Oct 28, 2009
61
0
(Phys.org)—A trio of researchers with The University of Texas has found a possible way to create gamma ray beams by firing a laser beam at a piece of plastic. In their paper published in Physical Review Letters, David Stark, ...
The science fiction author Arthur C. Clarke selected his own seven wonders of the world in a BBC television series in 1997. The only astronomical object he included was SS 433. It had attracted attention already in the late ...
Astronomy
Jan 25, 2024
6
85
Astronomers from the University of Maryland and the Michigan Technological University, have inspected a mysterious ultra-high energy gamma-ray source known as LHAASO J2108+5157. Results of the study, published August 31 on ...
(Phys.org) —A team of researchers based at Texas A&M University with affiliations with several Russian Universities has come up with a way to create pulses of gamma rays that have precise shapes and timing, all from a single ...
Researchers have discovered a highly efficient way to produce high energy photon beams. The obtained energy is a billion times higher than the energy of photons in visible light. These high-intensity gamma rays significantly ...
Optics & Photonics
Oct 20, 2017
2
77
Using the Large High Altitude Air Shower Observatory (LHAASO), astronomers have performed a search for new high-energy gamma-ray sources. As a result, they have identified a new ultra-high energy gamma-ray source, which received ...
