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A pulsar (from pulsating radio source) is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles.
Ein Pulsar (Kunstwort aus engl. pulsating source of radio emission, „pulsierende Radioquelle“) ist ein schnell rotierender, stark magnetisierter Neutronenstern. Sie bestehen zu annähernd 90 % aus Neutronen, besitzen eine Masse, die etwa dem Eineinhalbfachen der Sonnenmasse entspricht aber komprimiert auf einen Radius von nur ca. 10 km ...
24. Jan. 2023 · Pulsars are 'cosmic lighthouses' that when seen from Earth appear to be flickering stars, but actually consist of exotic stellar remnants called neutron stars.
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
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Some of them are the fastest spinning stars in the Universe (up to hundreds of revolutions per second); they are named ‘pulsars’ as they generate regular pulses of electromagnetic radiation including radio, visible, X-ray and gamma-ray wavelengths. These pulses are often compared to a spinning lighthouse beacon that appears to flash on and off.
1. Aug. 2017 · A little bit of “scruff” in scientific data 50 years ago led to the discovery of pulsars – rapidly spinning dense stellar corpses that appear to pulse at Earth. Astronomer Jocelyn Bell made the chance discovery using a vast radio telescope in Cambridge, England.
