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Vor 4 Tagen · Pulsars are rapidly spinning neutron stars, extremely dense stars composed almost entirely of neutrons and having a diameter of only 20 km (12 miles) or less. Pulsar masses range between 1.18 and 1.97 times that of the Sun, but most pulsars have a mass 1.35 times that of the Sun.
- The Editors of Encyclopaedia Britannica
18. Mai 2024 · Ein Pulsar (Kunstwort aus engl. „pulsierende Radioquelle“) ist ein schnell rotierender Neutronenstern. Die Symmetrieachse seines Magnetfelds weicht von der Rotationsachse ab, weshalb er Synchrotronstrahlung entlang der Dipolachse aussendet. Liegt die Erde im Strahlungsfeld, empfängt sie wie von einem Leuchtturm regelmäßig wiederkehrende Signale.
Vor 4 Tagen · Pulsars that emit radio waves “glitch” as they rotate – this seems to be caused by interruptions to swirling vortices inside these ultra-dense stars.
Vor 2 Tagen · Pulsars are neutron stars that emit pulses of radiation once per rotation. The radiation emitted is usually radio waves, but pulsars are also known to emit in optical, X-ray , and gamma-ray wavelengths.
- The Editors of Encyclopaedia Britannica
27. Mai 2024 · Explore the fascinating world of 'Pulsars: The Cosmic Lighthouses'. In this YouTube short, we delve into the nature of pulsars, their discovery, and how they serve as the universe's timekeepers....
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- BeyondTheWhistle
Vor 4 Tagen · Pulsars are highly magnetized, rotating neutron stars emitting a beam of electromagnetic radiation. The most rapidly rotating pulsars, with rotation periods below 30 milliseconds, are known as...
1. Juni 2024 · Astronomers from the Stanford University in California have performed joint X-ray and optical observations of a massive "spider" pulsar designated PSR J2215+5135.
