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Coronal extent and open field accretion

Coronal Holes and Open Magnetic Flux

Coronal Holes and Open Magnetic Flux

... Abstract Coronal holes are low-density regions of the corona which appear dark in X-rays and which contain “open” magnetic flux, along which plasma escapes into the ...large-scale field, the ...

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Coronal Polarization of Pseudostreamers and the Solar Polar Field Reversal

Coronal Polarization of Pseudostreamers and the Solar Polar Field Reversal

... variation, open flux, and near-Earth field The latitudinal profiles of the unsigned radial field at the source surface based on extrapolations of the photospheric fields from the flux transport ...

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Coronal holes and open magnetic flux over cycles 23 and 24.

Coronal holes and open magnetic flux over cycles 23 and 24.

... the coronal hole, the mean magnetic field, and the total unsigned flux in the ...measured coronal hole area, the unsigned open magnetic flux, and the signed open magnetic flux, ...our ...

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Coronal Holes and Open Magnetic Flux over Cycles 23 and 24

Coronal Holes and Open Magnetic Flux over Cycles 23 and 24

... the coronal hole, the mean magnetic field, and the total unsigned flux in the ...measured coronal hole area, the unsigned open magnetic flux, and the signed open magnetic flux, ...our ...

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Nonlinear force free field modeling of solar coronal jets in theoretical configurations

Nonlinear force free field modeling of solar coronal jets in theoretical configurations

... solar coronal jets in largely unipolar ...same extent as in MHD, and this process depends on the parameters of magnetofriction such as the ordinary and hyper-diffusion (not used in this case for ...magnetic ...

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Accretion by the Galaxy

Accretion by the Galaxy

... gravitational field is strong enough to compress coronal gas to densities at which it can be readily detected either through its X-ray emission Gursky et ...groups coronal gas can be detected through ...

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Acceleration of the Solar Wind as a Result of the Reconnection of Open Magnetic Flux with Coronal Loops

Acceleration of the Solar Wind as a Result of the Reconnection of Open Magnetic Flux with Coronal Loops

... the open field line reconnects with the ...the open field lines could preserve the electron temperature near the loop value, and the freeze-in occurs at the more traditional distances of a few ...

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Acceleration of the solar wind as a result of the reconnection of open magnetic flux with coronal loops

Acceleration of the solar wind as a result of the reconnection of open magnetic flux with coronal loops

... The reconnection process itself should also impart some heat to the material on the loops, a point to which we will return later in section 3.4. [ 18 ] For our purposes here, we require (1) a heating mechanism that ...

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A new technique for the photospheric driving of non potential solar coronal magnetic field simulations

A new technique for the photospheric driving of non potential solar coronal magnetic field simulations

... the open fl ux, when new bipoles are inserted into the simulation ...the open fl ux becomes larger over time, with more open fl ux and a bigger difference compared to the original simulation in the ...

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The possible impact of L5 magnetograms on non potential solar coronal magnetic field simulations

The possible impact of L5 magnetograms on non potential solar coronal magnetic field simulations

... solar coronal magnetic fi eld simulations when magnetograph observations are available from the L5 point, compared with an L1-based fi eld of view ( FOV ) ...the open magnetic fl ux and the location of ...

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Coronal Holes

Coronal Holes

... less coronal heating; see, ...between coronal holes and the fast solar wind has been traced down to ever smaller spatial ...network field distribution of order ∼ 100 ...oriented) field is ...

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Topologically driven coronal dynamics – a mechanism for coronal hole jets

Topologically driven coronal dynamics – a mechanism for coronal hole jets

... dipole field, we demonstrate that although common in closed-field regions close to the solar equator, bald patches are unlikely to occur in the open-field topology of a coronal ...

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An XMM—Newton observation of the young open cluster NGC 2547: coronal activity at 30 Myr

An XMM—Newton observation of the young open cluster NGC 2547: coronal activity at 30 Myr

... average coronal temperature will be, so it is difficult to attribute a causal effect to these ...active accretion or the presence of circumstellar ...

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Determination of the coronal magnetic field by coronal loop oscillations

Determination of the coronal magnetic field by coronal loop oscillations

... generated coronal loop oscillations in TRACE ...of coronal loop oscillations were detected by TRACE in March and April ...oscillating coronal loops is ...

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Accretion and Current Discs Controlled by Strong Magnetic Field

Accretion and Current Discs Controlled by Strong Magnetic Field

... magnetic- field structures in the accretion discs of semi-detached binary ...magnetic field of the ac- cretor star was assumed to be ...magnetic field in the disc was taken into ac- ...

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Magnetic field structure in accretion columns on HMXB and effects on CRSF

Magnetic field structure in accretion columns on HMXB and effects on CRSF

... the accretion disc to the poles of neutron stars forming an accretion ...of field lines due to the weight of accreted ...the accretion disc will alter the shape of the accretion mound ...

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MHD Simulations of Magnetospheric Accretion, Ejection and Plasma-field Interaction

MHD Simulations of Magnetospheric Accretion, Ejection and Plasma-field Interaction

... In another set of numerical experiments, the grid was compressed towards the disk, and accretion from a very thin disk (h/r ≈ 0.02 − 0.03) was investigated. The main goal was to understand how matter of the inner ...

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Magnetohydrodynamics modeling of coronal magnetic field and solar eruptions based on the photospheric magnetic field

Magnetohydrodynamics modeling of coronal magnetic field and solar eruptions based on the photospheric magnetic field

... reconstructed field does not completely achieve a force-free state, and so the residual force must be treated ...magnetic field dynamics, and the interpretation of the dynamics becomes ...netic field ...

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Null point distribution in global coronal potential field extrapolations

Null point distribution in global coronal potential field extrapolations

... quiet-Sun field and since fewer nulls occur above active tas opposed to quiet-Sun regions, this effect may lead to an over estimation in the total number of ...

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New Infrared Tools to Measure the Solar Coronal Magnetic Field.

New Infrared Tools to Measure the Solar Coronal Magnetic Field.

... normalize coronal spectra and divide out the gain ...the coronal spectra and this is often not the case due to temperature variations inside the optical ...for coronal HeI1083 emission because ...

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