(Phys.org) —The team of scientists associated with the Fermi Gamma-ray Space Telescope mission has published a catalog of gamma-ray sources at energies above 10 GeV. In their paper uploaded to the preprint server arXiv, ...
ESA's high-energy space telescopes Integral and XMM-Newton have helped to find a source of powerful X-rays at the centre of an unprecedentedly bright and rapidly evolving stellar explosion that suddenly appeared in the sky ...
Astronomy
Jan 11, 2019
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An international team of researchers has investigated a peculiar extragalactic radio source known as IC 1531. The new study analyzes the nature of IC 1531's high-energy emission, suggesting that the source is a radio galaxy. ...
A blazar is a galaxy with an intensely bright central nucleus containing a supermassive black hole, much like a quasar. The difference is that a blazar can emit light with extremely high energy gamma rays that are sometimes ...
Astronomy
Oct 29, 2012
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Argentinian astronomers have conducted radio observations of a very-high-energy gamma-ray source known as HESS J1857+026. Results of this study provide new insights into the nature of this mysterious source. The research ...
Security concerns over radioactive materials have persisted for many years. Airports and other public locations now routinely employ radiation detectors, and nuclear regulators need to be able to monitor the levels of subatomic ...
General Physics
Feb 9, 2023
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The astrophysics world is abuzz after the first-ever observation of two neutron stars merging in a cataclysmic crash that left a rich trail of debris for scientists to comb through.
Astronomy
Oct 16, 2017
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Researchers at DESY have compiled an extensive catalogue of variable sources of cosmic gamma radiation. For his doctoral thesis, Matteo Giomi, working at DESY in Zeuthen, analysed almost 7.5 years of observational data from ...
Astronomy
Sep 4, 2017
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This weekend sees the 45th anniversary of the launch of Cos-B, the first satellite to be launched under the banner of the newly created European Space Agency, on 9 August 1975.
Space Exploration
Aug 7, 2020
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An international group of astronomers have carried out multi-wavelength observations of HESS J1943+213 and found evidence supporting the hypothesis that this gamma-ray source is an extreme blazar. The finding is reported ...
