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RESEARCH PRODUCT
Hydromagnetic instabilities and magnetic field amplification in core collapse supernovae
Pablo Cerdá-duránM. ObergaulingerEwald MüllerM. A. AloyJosé A. Fontsubject
PhysicsHistory010308 nuclear & particles physicsGeneral relativityAstrophysics::High Energy Astrophysical Phenomenamedia_common.quotation_subjectAstronomyCollapse (topology)Astrophysics01 natural sciencesUniverseComputer Science ApplicationsEducationMagnetic fieldSupernovaTheory of relativity13. Climate action0103 physical sciencesGravitational collapseGamma-ray burst010303 astronomy & astrophysicsmedia_commondescription
Some of the most violent events in the universe, the gamma ray burst, could be related to the gravitational collapse of massive stellar cores. The recent association of long GRBs to some class of type Ic supernova seems to support this view. In such scenario fast rotation, strong magnetic fields and general relativistic effects are key ingredients. It is thus important to understand the mechanism that amplifies the magnetic field under that conditions. I present global simulations of the magneto-rotational collapse of stellar cores in general relativity and semi-global simulations of hydromagnetic instabilities under core collapse conditions. I discuss effect of the magneto-rotational instability and the magnetic field amplification during the collapse, the uncertainties in this process and the dynamical effects in the supernova explosion.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-09-22 | J. of Phys. Conf. Ser., 314, 012079 (2011) |