Magnetar

Magnetar
   This type of star is created when a large star, at least eight times larger than the Sun, goes supernova. The star's core must spin fast, at least 200 revolutions per second, immediately after going supernova. This fast rate of spin creates a magnetic field in the gas cloud around the star. These magnetic fields are hundreds of times stronger than any other magnetic fields. They are so strong that they occasionally create a starquake, which cracks the star's solid metal crust. These cracks release streams of charged particles and radiation from withing the magnetar. The Earth was hit by one of these streams for five minutes on August 27, 1998 at 2:22 AM Pacific time, from magnetar SGR 1900+14. The stream of X-rays and gamma radiation overloaded sensors on satellites and disrupting long range radio transmissions. Magnetars are very dense. On Earth, one teaspoon of their matter would weigh about 907,000,000 metric tons (1,000,000,000 tons). There are probably millions of dormant magnetars in the Milky Way Galaxy.

The writer's dictionary of science fiction, fantasy, horror and mythology. 2014.

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  • Magnetar — Magnétar Vue d artiste d un magnétar. Un magnétar est une étoile à neutrons disposant d un champ magnétique hyper puissant, qui émet des radiations électromagnétiques de haute énergie, comme les rayons X et gamma. Robert Duncan et Christopher… …   Wikipédia en Français

  • Magnetar — For the hedge fund, see Magnetar Capital. Artist s conception of a magnetar, with magnetic field lines A magnetar is a type of neutron star with an extremely powerful magnetic field, the decay of which powers the emission of copious amounts of… …   Wikipedia

  • Magnetar — künstlerische Darstellung eines Magnetars mit Feldlinien Ein Magnetar ist ein Neutronenstern, dessen Magnetfeld das 1.000 fache des bei Neutronensternen üblichen Wertes aufweist. Man schätzt, dass etwa 10 % aller Neutronensterne zu dieser… …   Deutsch Wikipedia

  • Magnetar — Concepción artística de un magnetar. Un magnetar o magnetoestrella es una estrella de neutrones alimentada con un campo magnético extremadamente fuerte. Se trata de una variedad de púlsar cuya característica principal es la expulsión, en un breve …   Wikipedia Español

  • Magnétar — Vue d artiste d un magnétar. Un magnétar est une étoile à neutrons disposant d un champ magnétique hyper puissant, qui émet des radiations électromagnétiques de haute énergie, comme les rayons X et gamma. Robert Duncan et Christopher Thompson… …   Wikipédia en Français

  • Magnetar — Un magnetar es una estrella de neutrones con un campo magnético extremadamente fuerte, el decaimiento de este poder se da mediante copiosas emisiones de energía electromagnética de alta energía, en especial de rayos X y rayos gamma. La teoría… …   Enciclopedia Universal

  • Magnetar Capital — is a hedge fund based in Evanston, Illinois. Among its many activities, the firm was actively involved in the collateralized debt obligation (CDO) market during the 2006–2007 period. In some articles critical of Magnetar Capital, the firm s… …   Wikipedia

  • magnetar — noun A neutron star or pulsar with an extremely powerful magnetic field, especially those on which starquakes occur, thought to be the source of some gamma ray bursts …   Wiktionary

  • Magnetar — Neutronenstern; Pulsar …   Universal-Lexikon

  • magnetar — ma·gne·tar s.f. e m.inv. ES ingl. {{wmetafile0}} TS astron. oggetto celeste, prob. stelle di neutroni, a densità molto elevata e con intensi campi magnetici {{line}} {{/line}} DATA: 1992. ETIMO: comp. di magnetic magnetico e star stella …   Dizionario italiano

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