Supernova remnants with magnetars: Clues to magnetar formation |
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Authors: | Jacco Vink |
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Institution: | Astronomical Institute Utrecht, University Utrecht, P.O. Box 80000, 3508 TA, Utrecht, The Netherlands |
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Abstract: | In this paper I discuss the lack of observational evidence that magnetars are formed as rapidly rotating neutron stars. Supernova remnants containing magnetars do not show the excess of kinetic energy expected for such a formation scenario, nor is there any evidence for a relic pulsar wind nebula. However, it could be that magnetars are formed with somewhat slower rotation periods, or that not all excess rotational energy was used to boost the explosion energy, for example as a result of gravitational radiation. Another observational tests for the rapid initial period hypothesis is to look for statistical evidence that about 1% of the observed supernovae have an additional 1040–1044 erg/s excess energy during the first year, caused by the spin down luminosity of a magnetar. |
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Keywords: | Stars Neutron and stars Magnetic field and ISM Supernova remnants and ISM Individual N49 and ISM Individual Kes 73 and ISM Individual CTB 109 and ISM Individual Cas A |
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