'Helicity flux' diaporamas de présentation

Non-helical MHD at 1024 3

Non-helical MHD at 1024 3. Haugen, Brandenburg, & Dobler (2003, ApJ). Inverse cascade of magnetic helicity. argument due to Frisch et al. (197 5 ). and. Initial components fully helical:. and. ? k is forced to the left. Magnetic helicity. Maxwell eqns. Vector potential.

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Helicity and Helicity flux during the solar cycle

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Magnetic Helicity in Emerging Active Regions: A Statistical Study

Magnetic Helicity in Emerging Active Regions: A Statistical Study. Yang Liu, Peter W. Schuck. Topics to be discussed. Buildup of magnetic relative helicity in two emerging active regions; Hemispheric helicity rule: test with HMI data;

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Energy & Helicity Flux into the Corona

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Asymmetry of helicity injection in emerging active regions

Asymmetry of helicity injection in emerging active regions. L. Tian, D. Alexander Rice University, USA Y. Liu Yunnan Astronomical Observatory, China. Background - observations. Well observed on solar photosphere, chromosphere and corona in many different wave-lengths.

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Catastrophic a -quenching alleviated by helicity flux and shear

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Dynamo Modeling: What HMI/AIA can do for us (and perhaps vice versa)

Dynamo Modeling: What HMI/AIA can do for us (and perhaps vice versa). Mark Miesch HAO/NCAR, JILA/CU (Sacha Brun, Juri Toomre, Matt Browning, Marc DeRosa, Ben Brown). Feb, 2006. Question 1: Are Flux-transport dynamos on the right track?. Courtesy M. Dikpati.

93 views • 9 slides

Energetics of the Solar Atmosphere T. Metcalf HMI Team Meeting 2003-May-1

Energetics of the Solar Atmosphere T. Metcalf HMI Team Meeting 2003-May-1. The vector magnetic field and velocity can be used to understand the energetics of the solar atmosphere. To measure the free energy requires chromospheric data.

61 views • 6 slides