Neutrinos from Pulsar Environments
نویسندگان
چکیده
منابع مشابه
Neutrinos from Early-phase, Pulsar-driven Supernovae
Neutron stars, just after their formation, are surrounded by expanding, dense, and very hot envelopes which radiate thermal photons. Protons can be accelerated in the wind zones of such energetic pulsars to very high energies. These protons lose energy efficiently in collisions with thermal photons and with the matter of the envelope, mainly via pion production. When the temperature of radiatio...
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In the recent paper we calculated the γ-ray spectra from pulsar wind nebulae (PWNe), assuming that a significant amount of the pulsar rotational energy is converted into relativistic nuclei. These nuclei accelerate leptons which are responsible for most of the observed electromagnetic emission from PWNe. Small part of nuclei also interact with the matter of the supernova producing γ-rays, which...
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A convincing explanation for the observed pulsar large peculiar velocities is still missing. We argue that any viable particle physics solution would most likely involve the resonant production of a non-interacting neutrino νs of mass mνs ∼ 20–50 keV. We propose a model where anisotropic magnetic field configurations strongly bias the resonant spin flavour precession of tau antineutrinos into ν...
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Young pulsars are known to exhibit large space velocities, up to 10 km/s. We propose a new mechanism for the generation of these large velocities based on an asymmetric emission of neutrinos during the supernova explosion. The mechanism involves the resonant spin–flavour precession of neutrinos with a transition magnetic moment in the magnetic field of the supernova. The asymmetric emission of ...
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ژورنال
عنوان ژورنال: Highlights of Astronomy
سال: 2005
ISSN: 1539-2996
DOI: 10.1017/s1539299600014970