ScienceDaily: Cosmic Rays News |
| Astronomers get first peek into core of supernova, using NuSTAR telescope Posted: 19 Feb 2014 10:33 AM PST Astronomers have peered for the first time into the heart of an exploding star in the final minutes of its existence. The feat by the high-energy X-ray satellite NuSTAR provides details of the physics of the core explosion inaccessible until now, says team member Steven Boggs of UC Berkeley. NuSTAR mapped radioactive titanium in the Cassiopeia A supernova remnant, which has expanded outward and become visible from Earth since the central star exploded in 1671. |
| Clouds seen circling supermassive black hole Posted: 19 Feb 2014 09:46 AM PST Astronomers see huge clouds of gas orbiting supermassive black holes at the centres of galaxies. Once thought to be a relatively uniform, fog-like ring, the accreting matter instead forms clumps dense enough to intermittently dim the intense radiation blazing forth as these enormous objects condense and consume matter. |
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