Surface magnetic topology and dynamo processes
The surprising magnetic topology of tausco: fossil remnant or dynamo output?
... moderate surface spatial reso- lution can be obtained for τ Sco, as a result of its low rota- tion velocity; close bipolar groups, for example, could there- fore easily remain undetected if present on scales ...
19
Magnetic surface topology in decaying plasma knots
... intact surface, as can be seen in figure ...branched surface rotates, and then is split over the two downwards oriented legs, to be split and combined ...the surface cannot be de fi ...resemble ...
13
A dynamo model of Jupiter's magnetic field
... Jupiter-like magnetic fields have been found using self-consistent convection-driven dynamo mod- els with a state-of-the-art reference model of Jupiter and a plausi- ble internal heating ...of dynamo ...
12
Laboratory evidence of dynamo amplification of magnetic fields in a turbulent plasma
... revealed magnetic field strengths ranging from a few nG and tens of μG in extragalactic disks, halos and clusters, up to hundreds of TG in magnetars, as inferred from their spin-down 2 ...of magnetic fields ...
8
A numerical study on magnetic polarity transition in an MHD dynamo model
... true magnetic pole, whereas the middle (right) represents the time-longitude diagram of the VGP at 30 ◦ N (60 ◦ ...stretching processes as well as the correlation among them seem to give rise to distinct ...
9
The evolving magnetic topology of τ Boötis
... the field topology are real irrespective of the sometimes large and conservative variation measurements. As with determining differential rotation, phase coverage must be adequate to successfully reconstruct the ...
18
On the topology of global coronal magnetic fields
... the topology of the potential field extrapolated from this synthesised ...separatrix surface from the positive null is bounded by the spines of the two negative nulls and by the ...(blue surface) ...
194
MAGNETIC FIELD TOPOLOGY AND HEAT FLUX
... 4.3. CALIBRATION 85 4.3 Calibration 4.3.1 Temperature calibration To measure the temperature the setup was calibrated with a black body source connected to a thermocouple. As a black body source we have used an insulated ...
121
Topology of a dissipative spin: Dynamical Chern number, bath-induced nonadiabaticity, and a quantum dynamo effect
... a magnetic field H = H (sin θ cos φ, sinθ sin φ, cos θ) induced by a coupling to an ohmic quantum dissipative environment at zero ...for magnetic fields aligned along the equator θ = ...transverse ...
18
A dynamo driven by zonal jets at the upper surface: Applications to giant planets
... a dynamo mechanism arising from the presence of barotrop- ically unstable zonal jet currents in a rotating spherical ...self-sustained magnetic fields at magnetic Reynolds numbers greater than 10 3 ...
46
Is magnetic topology important for heating the solar atmosphere?
... solar surface, which either inject energy during the process of flux emergence, or inject energy by driving photospheric magnetic ...the magnetic field, throughout the atmosphere, that can lead to ...
22
Observations of non-solar-type dynamo processes in stars with shallow convective zones
... The magnetic field topology and differential rotation are fundamental signatures of the dynamo processes that generate the magnetic activity observed in the Sun and solar-type ...these ...
12
Three dimensional topology of solar coronal magnetic fields
... important magnetic features as they are the intersection between two separatrix ...two magnetic structures interact. Also, their role in magnetic reconnection could be more important than has ...
142
A theory of the Earth’s magnetic field and of sunspots, based on a self-excited dynamo incorporating the Hall effect
... Earth’s magnetic field is put forward, which integrates self-exciting dynamo theory with the possibility of energy coupling along orthogonal axes provided by the Hall ...physical processes which ...
15
A theory of the Earth s magnetic field and of sunspots, based on a self-excited dynamo incorporating the Hall
... Earth’s magnetic field is put forward, which integrates self-exciting dynamo theory with the possibility of energy coupling along orthogonal axes provided by the Hall ...physical processes which ...
16
Dynamo processes and activity cycles of the active stars AB Doradus, LQ Hydrae and HR 1099
... the magnetic field of either ...the topology of which has thus remained essentially con- stant for the last 11 and 7 yr, ...the magnetic field structure can nevertheless be reported for both LQ Hya ...
42
The connection between stellar activity cycles and magnetic field topology
... portant parameter determining the toroidal energy fraction. This raises the question - do stars capable of generating large f tor val- ues only appear on the active branch because these are the fastest rotators or is ...
9
The connection between stellar activity cycles and magnetic field topology
... near surface shear ...stellar surface. In contrast, flux generated in near surface shear layers takes less time emerge and may be more likely to emerge in a stressed or toroidal ...
9
The connection between stellar activity cycles and magnetic field topology
... their surface fields? A method of breaking this degeneracy would be to map the fields of stars in the intermedi- ate shaded regime where the branches ...true magnetic cycle periods, will be needed before ...
9
The end of the lunar dynamo
... poor magnetic recording properties of the sample: Our 15465 paleointensity fidelity analyses indicate that our nonthermal methods can accurately measure pa- leointensities of ...lunar surface field was ...
9