Solar flares and the axion quark nugget dark matter model

Publication date: Available online 9 August 2018Source: Physics of the Dark UniverseAuthor(s): Ariel ZhitnitskyAbstractWe advocate the idea that the nanoflares conjectured by Parker long ago to resolve the corona heating problem, may also trigger the larger solar flares. The arguments are based on the model where emission of extreme ultra violet (EUV) radiation and soft x-rays from the Sun are powered externally by incident dark matter particles within the Axion Quark Nugget (AQN) Dark Matter Model. The corresponding annihilation events of the AQNs with the solar material are identified with nanoflares. This model was originally invented as a natural explanation of the observed ratio Ωdark∼Ωvisible when the DM and visible matter densities assume the same order of magnitude values. This model gives a very reasonable intensity of EUV radiation without adjustments of any parameters in the model. When the same nuggets enter the regions with high magnetic field they serve as the triggers igniting the magnetic reconnections which eventually may lead to much larger flares.Technically, the magnetic reconnection is ignited due to the shock wave which inevitably develops when the dark matter nuggets enter the solar atmosphere with velocity vAQN∼600km∕s which is much higher than the speed of sound cs, such that the Mach number M=vAQN∕cs≫1. These shock waves generate very strong and very short impulses expressed in terms of pressure Δp∕p∼M2 and temperature ΔT∕T∼M2 i...
Source: Physics of the Dark Universe - Category: Physics Source Type: research