Pulsar acceleration by asymmetric emission of sterile neutrinos
ABSTRACT: 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 vs of mass mvs ∼ 20–50 keV. We propose a model where anisotropic m...
- Autores:
-
Nardi, Enrico
Zuluaga Callejas, Jorge Iván
- Tipo de recurso:
- Article of investigation
- Fecha de publicación:
- 2002
- Institución:
- Universidad de Antioquia
- Repositorio:
- Repositorio UdeA
- Idioma:
- eng
- OAI Identifier:
- oai:bibliotecadigital.udea.edu.co:10495/8538
- Acceso en línea:
- http://hdl.handle.net/10495/8538
- Palabra clave:
- Aceleración pulsatoria
Emisión asimétrica
Neutrinos estériles
- Rights
- openAccess
- License
- Atribución-NoComercial-SinDerivadas 2.5 Colombia
| Summary: | ABSTRACT: 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 vs of mass mvs ∼ 20–50 keV. We propose a model where anisotropic magnetic field configurations strongly bias the resonant spin flavour precession of tau antineutrinos into vs. For internal magnetic fields Bint >∼ 1015 G a ¯vt-vs transition magnetic moment of the order of 10−12 Bohr magnetons is required. The asymmetric emission of vs from the core can produce sizeable natal kicks and account for recoil velocities of several hundred kilometers per second. |
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