For the first time, a spacecraft has detected signals from both stars of a binary pulsar system in X-rays. XMM-Newton is watching both stars radiate pulsating X-rays, providing scientist with the perfect laboratory for high-energy physics and a never-ending source of intriguing physical problems. The binary pulsar PSR J0737-3039 was first spotted by astronomers in [...]
Archive for the ‘Neutroninės/pulsarai’ Category
Rare Binary Pulsars Provide High Energy Physics Lab (UT)
Posted in Daugianarės, Neutroninės/pulsarai, tagged binary, dvinaris, pulsaras, pulsars, rentgenas, x-ray, xmm-newton on 2008/06/25 | Leave a Comment »
Super-neutron stars are possible (UT)
Posted in Antžeminiai, Juodosios skylės, Neutroninės/pulsarai on 2008/01/13 | Leave a Comment »
When a star like our Sun dies, it’ll end up as a white dwarf. And if a star contains 1.4 times the mass of the Sun, it’ll have enough gravity to turn into a neutron star. Much bigger stars turn into black holes. But now it turns out, neutron stars can be much more massive [...]
Strange planet-mass object found (AM)
Posted in Egzoplanetos, Neutroninės/pulsarai on 2007/09/16 | Leave a Comment »
Using NASA’s Swift and Rossi X-ray Timing Explorer (RXTE) satellites, astronomers have discovered one of the most bizarre planet-mass objects ever found.
The object’s minimum mass is only about 7 times the mass of Jupiter. But instead of orbiting a normal star, this low-mass body orbits a rapidly spinning pulsar. It orbits the pulsar every 54.7 [...]
