Fragment Driven Magnetic Reconnection Researchgate

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(PDF) Fragment Driven Magnetic Reconnection - …

The reconnection rate of the dynamical process is determined and compared with the corresponding rate for the potential evolution of the magnetic field. This shows that the dynamic reconnection ...

(PDF) Numerical Simulations of 3d Magnetic Reconnection ...

These motions cause the magnetic fields extending from flux fragments to tangle, forcing different magnetic flux systems to interact. Only the process of magnetic reconnection limits the ...

D Numerical Simulations of Magnetic Reconnection Driven …

Two cases are discussed in details. In the first, dynamo action is driven by turbulent convection; in the second, it is driven by a combination of velocity shear and magnetic buoyancy instabilities.

Collisionless Magnetic Reconnection Driven by ...

Request PDF | Collisionless Magnetic Reconnection Driven by Perturbations on Boundaries | Electron-inertia effects on the magnetic field reconnection induced by perturbing the boundaries of a ...

Plasmoid Generation in Driven Compressible Magnetic ...

Request PDF | Plasmoid Generation in Driven Compressible Magnetic Reconnection | High Lundquist number (S) magnetic reconnection (MR) drives the formation of very intense and localized current ...

A Magnetic Reconnection Event in the ... - researchgate.net

Request PDF | A Magnetic Reconnection Event in the Solar Atmosphere Driven by Relaxation of a Twisted Arch Filament System | We present high-resolution observations of a magnetic reconnection ...

D Numerical Simulations of Magnetic Reconnection …

Two cases are discussed in details. In the first, dynamo action is driven by turbulent convection; in the second, it is driven by a combination of velocity shear and magnetic buoyancy instabilities.

FRAGMENT DRIVEN MAGNETIC RECONNECTION - CORE

The reconnection rate of the dynamical process is determined and compared with the corresponding rate for the potential evolution of the magnetic field. This shows that the dynamic reconnection rate is about a factor of two smaller than the potential (perfect, instantaneous) rate for realistic solar driving velocities demonstrating that this threedimensional magnetic reconnection process is fast. The …

Fragment Driven Magnetic Reconnection - CORE

The reconnection rate of the dynamical process is determined and compared with the corresponding rate for the potential evolution of the magnetic field. This shows that the dynamic reconnection rate is about a factor of two smaller than the potential (perfect, instantaneous) rate for realistic solar driving velocities demonstrating that this three-dimensional magnetic reconnection process is fast. The energy input for …

Localization, the clue to fast magnetic reconnection

Download Citation | Localization, the clue to fast magnetic reconnection | The effect of localization of the resistivity is studied in the coalescence of two magnetic flux bundles. The ...

Fragment Driven Magnetic Reconnection - NASA/ADS

Not Available adshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A

Fragment Driven Magnetic Reconnection – arXiv Vanity

Fragment Driven Magnetic Reconnection. K. Galsgaard NBIfAFG, Astronomical Observatory, Juliane Maries vej 31, 2100 Kbh Ø, Denmark C. Parnell School of Mathematical and Statistical Sciences, University of St Andrews, St Andrews, KY16 9SS, UK Abstract. The heating of the million degree, diffuse coronal plasma may be caused by a large number of events that are too small to be identified by ...

Fragment Driven Magnetic Reconnection : K. Galsgaard ...

Fragment Driven Magnetic Reconnection Item Preview > remove-circle Share or Embed This Item. EMBED. EMBED (for wordpress.com hosted blogs and archive.org item <description> tags) ...

Fragment Driven Magnetic Reconnection - CERN …

Fragment Driven Magnetic Reconnection: If you experience any problem watching the video, click the download button below. Download Embed. Show number of views. Author(s) Galsgaard, K; Parnell, C: Affiliation (NBIfAFG, Astronomical Observatory, Denmark,) ; (School of Mathematical and Statistical Sciences, University of St Andrews, UK) Imprint 23 Sep 2004. - 6 p. Subject category Astrophysics ...

Magnetohydrodynamic evolution of magnetic skeletons

However, the simple moving around of magnetic fragments in the photosphere also causes magnetic reconnection in the atmosphere (Longcope 1998; Galsgaard et al. 2000; Parnell & Galsgaard 2004; Galsgaard & Parnell 2005). The ceaseless movement of photospheric fragments in the quiet Sun drives a wealth of reconnection which can power X-ray bright

Spacecraft reveal new details of magnetic reconnection

Spacecraft reveal new details of magnetic reconnection. by Morgan Rehnberg, American Geophysical Union. Reconnecting magnetic field lines, which accelerate energetic electrons, are illustrated ...

Magnetic reconnection in the solar atmosphere: from ...

The sheet then starts to fragment and the field relaxes towards the constant field with the same magnetic helicity. The figure clearly shows how the field untwists during the reconnection and how the footpoint connections are changing due to reconnection. (Based on Hood et. al 2009) 3: Open in new tab Download slide. The panels show how Taylor relaxation can occur through the nonlinear ...

Elementary Heating Events - Magnetic Interactions Between ...

ergy is released through magnetic reconnection driven by the interactions of opposite-polarity magnetic frag- ments is not a new one. Magnetic reconnection can be driven by several different types of photospheric fragment interaction. For instance, magnetic reconnection driven by the emergence of new flux, on both large and small scales, has been explored by many authors (e.g., …

CAN THE SOLAR WIND BE DRIVEN BY MAGNETIC RECONNECTION …

CAN THE SOLAR WIND BE DRIVEN BY MAGNETIC RECONNECTION IN THE SUN’S MAGNETIC CARPET? Steven R. Cranmer and Adriaan A. van Ballegooijen Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA; [email protected], [email protected] Received 2010 May 25; accepted 2010 July 13; published 2010 …

Magnetic Reconnection and Canceling of Solar Features

Magnetic fragments are observed to originate as bipoles but cancel with external fields. This led ... The relationship is more complicated for other reconnection models, such as strong flux pileup or coalescence-driven reconnection when B B is possible (see Biskamp 1994 for a review). To compute numerical values of the current sheet parameters, we need a model for the solar atmosphere that ...

Fragment Driven Magnetic Reconnection_文库下载

Fragment Driven Magnetic Reconnection. a r X i v :a s t r o -p h /0409562v 1 23 S e p 2004. FRAGMENT DRIVEN MAGNETIC RECONNECTION. K.Galsgaard (1)and C.Parnell (2) (1) NBIfAFG,Astronomical Observatory,Juliane Maries vej 31,2100Kbh Ø,Denmark (2) School of Mathematical and Statistical Sciences,University of St Andrews,St Andrews,KY169SS,UK . …

Elementary heating events - magnetic interactions …

Magnetic fragments in the photosphere are in continuous motion and, due to the complex nature of the magnetic field in the solar atmosphere, these motions are likely to drive a lucrative coronal energy source: the passing of initially-unconnected opposite-polarity fragments that release energy through both closing and then re-opening the same fieldlines.

Proceedings of the SOHO 15 Workshop

fragment driven magnetic reconnection.....351 k. galsgaard & c. parnell is the correlation between flux tube expansion factor and solar wind speed near the earth causal?.....357 b. poduval & x.p. zhao dynamic properties of solar spicules observed by sumer/soho.....362 l.d. xia, m.d. popescu & j.g. doyle comparison of a coronal hole and the nearby quiet sun region.....368 k.p. raju & b.j.i ...

A Converging Flux Model of an X-Ray Bright Point and an ...

X-ray bright points are an important part of the solar corona and therefore of the coronal heating problem. When it was first realized that bright points are always situated above opposite polarity magnetic fragments in the photosphere, it was natural to suggest that such fragments represent emerging flux and that an X-ray bright point is caused by reconnection of the emerging flux with an ...

PUFFIN GROUP – Studying Fundamental Plasma Processes …

Long exposure image of a pulsed-power driven magnetic reconnection experiment. PUFFIN is a new pulsed-power facility at the Plasma Science and Fusion Center, at the Massachusetts Institute of Technology. PUFFIN (the PUlser For Fundamental [Plasma …

Explaining Parker Solar Probe's magnetic puzzle

"Magnetic reconnection is a little like scissors and a soldering gun combined into one," said Gary Zank, a solar physicist at the University of Alabama Huntsville. The open line snaps onto the ...