Pulsar

Pulsar

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This image is part of the feature 10 Women Scientists Who Changed The World

Credit: RUSSELL KIGHTLEY/SCIENCE PHOTO LIBRARY

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Caption: Pulsar. Computer artwork of the emission mechanism of a pulsar. Pulsars are rapidly rotating neutron stars that cast out narrow beams of energy (purple) as they rotate. The beams are confined by extremely strong magnetic fields (blue). Any pulsar whose beam chances to cross Earth will appear to be flashing like a lighthouse, with regular pulses of energy sweeping across Earth. Pulsars rotate extremely fast, with periods ranging from hundredths of seconds to a few seconds. The pulse is visible from radio to X- ray wavelengths. Pulsars are formed in supernova explosions, and are composed of the star's dense collapsed core.

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Keywords: artwork, astronomical, astronomy, computer, cosmological, cosmology, emission, illustration, magnetic field, neutron star, pulsar, science, snr, star death, stellar, supernova remnant

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