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Home > Art, Film & Photography > Pulsar: Psr B1919+21, Psr 1913+16, Pulsar-Planet, Psr J0737-3039, Psr 1257+12, Psr J1748-2446ad, Pulsarwind-Nebel, Psr 0833-45, Psr J1903+0327
Pulsar: Psr B1919+21, Psr 1913+16, Pulsar-Planet, Psr J0737-3039, Psr 1257+12, Psr J1748-2446ad, Pulsarwind-Nebel, Psr 0833-45, Psr J1903+0327

Pulsar: Psr B1919+21, Psr 1913+16, Pulsar-Planet, Psr J0737-3039, Psr 1257+12, Psr J1748-2446ad, Pulsarwind-Nebel, Psr 0833-45, Psr J1903+0327


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Kapitel: Psr B1919+21, Psr 1913+16, Pulsar-Planet, Psr J0737-3039, Psr 1257+12, Psr J1748-2446ad, Pulsarwind-Nebel, Psr 0833-45, Psr J1903+0327, Psr B1508+55. Aus Wikipedia. Nicht dargestellt. Auszug: Pulsars are highly magnetized, rotating neutron stars that emit a beam of electromagnetic radiation. The radiation can only be observed when the beam of emission is pointing towards the Earth. This is called the lighthouse effect and gives rise to the pulsed nature that gives pulsars their name. Because neutron stars are very dense objects, the rotation period and thus the interval between observed pulses is very regular. For some pulsars, the regularity of pulsation is as precise as an atomic clock. The observed periods of their pulses range from 1.4 milliseconds to 8.5 seconds. A few pulsars are known to have planets orbiting them, such as PSR B1257+12. Werner Becker of the Max Planck Institute for Extraterrestrial Physics said in 2006, "The theory of how pulsars emit their radiation is still in its infancy, even after nearly forty years of work." Schematic view of a pulsar. The sphere in the middle represents the neutron star, the curves indicate the magnetic field lines and the protruding cones represent the emission beams.The events leading to the formation of a pulsar begin when the core of a massive star is compressed during a supernova, which collapses into a neutron star. The neutron star retains most of its angular momentum, and since it has only a tiny fraction of its progenitor's radius (and therefore its moment of inertia is sharply reduced), it is formed with very high rotation speed. A beam of radiation is emitted along the magnetic axis of the pulsar, which spins along with the rotation of the neutron star. The magnetic axis of the pulsar determines the direction of the electromagnetic beam, with the magnetic axis not necessarily being the same as its rotational axis. This misalignment causes the beam to be seen on...http: //booksllc.net/?l=d


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Product Details
  • ISBN-13: 9781159278090
  • Publisher: Books LLC
  • Publisher Imprint: Books LLC
  • Height: 152 mm
  • No of Pages: 40
  • Spine Width: 3 mm
  • Weight: 73 gr
  • ISBN-10: 1159278091
  • Publisher Date: 22 Jul 2010
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Sub Title: Psr B1919+21, Psr 1913+16, Pulsar-Planet, Psr J0737-3039, Psr 1257+12, Psr J1748-2446ad, Pulsarwind-Nebel, Psr 0833-45, Psr J1903+0327
  • Width: 229 mm


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Pulsar: Psr B1919+21, Psr 1913+16, Pulsar-Planet, Psr J0737-3039, Psr 1257+12, Psr J1748-2446ad, Pulsarwind-Nebel, Psr 0833-45, Psr J1903+0327
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Pulsar: Psr B1919+21, Psr 1913+16, Pulsar-Planet, Psr J0737-3039, Psr 1257+12, Psr J1748-2446ad, Pulsarwind-Nebel, Psr 0833-45, Psr J1903+0327
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Pulsar: Psr B1919+21, Psr 1913+16, Pulsar-Planet, Psr J0737-3039, Psr 1257+12, Psr J1748-2446ad, Pulsarwind-Nebel, Psr 0833-45, Psr J1903+0327

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