The sweeping beams of cosmic lighthouses called pulsars are much more energetic than previously thought, calling into question the bulbs that power them.
The observation is “spectacular,” says Hayk Hakobyan, an astrophysicist at Columbia University who was not part of the study. “This is basically a stress test for our theories.” The team first spotted hints of the mighty radiation a few years ago and struggled to interpret the data. “This discovery was so unexpected … that it somehow was difficult to understand,” says Arache Djannati-Ataï, an astrophysicist at CNRS in Paris, who led the analysis.
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Highest-energy pulsar ever seen could indicate new physicsRobert Lea is a science journalist in the U.K. who specializes in science, space, physics, astronomy, astrophysics, cosmology, quantum mechanics and technology. Rob's articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University\n
Source: LiveScience - 🏆 538. / 51 Read more »
Astronomers spotted the highest energy light ever seen from a pulsarGamma rays with energies upwards of 20 teraelectronvolts have been recorded from the Vela pulsar \u2013 20 times higher than any other light ever seen from one of these odd stars
Source: newscientist - 🏆 541. / 51 Read more »
Scientists discover the highest energy gamma-rays ever from a pulsarScientists using the H.E.S.S. observatory in Namibia have detected the highest energy gamma rays ever from a dead star called a pulsar. The energy of these gamma rays clocked in at 20 tera-electronvolts, or about 10 trillion times the energy of visible light. This observation is hard to reconcile with the theory of the production of such pulsed gamma rays, as the international team reports in the journal Nature Astronomy.
Source: physorg_com - 🏆 388. / 55 Read more »
Scientists discover the highest energy gamma-rays ever from a pulsarScientists have detected the highest energy gamma rays ever from a dead star called a pulsar. The energy of these gamma rays clocked in at 20 tera-electronvolts, or about ten trillion times the energy of visible light. This observation is hard to reconcile with the theory of the production of such pulsed gamma rays, as the international team reports.
Source: ScienceDaily - 🏆 452. / 53 Read more »