HELICITY 2020
Program on Helicities in Astrophysics
About the Event
Online Advanced Study Program on Helicities in Astrophysics and Beyond
Online Advanced Study Program on Helicities in Astrophysics and Beyond Magnetic helicity has been intensively studied over the recent few decades from observational, theoretical, and other aspects in Astrophysics, Solar Physics, Plasma and Fluid Dynamics, and Mathematics. There was a series of focused events such as Chapman Conference in Boulder in 1998, Helicity Thinkshops in …
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| Date & Time (UTC) | Speaker | Authors | Title | Abstract |
| 2021-06-11 13:00 | Warnecke, J. | Warnecke, J. | Modelling solar and stellar activity driven by turbulent dynamo effects and helicity |
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| 2021-06-11 14:00 | Stepanov R. | Stepanov R., Plunian F. | Kinematic dynamo in a tetrahedron of Fourier modes |
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| 2021-05-21 13:00 | Jian-Zhou Zhu | Zhu J.-Z., Yang Y., and Peng J. | Dissipation-Range Nonuniversality from Helicity Fastening Effects on the Complex Singularities |
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| 2021-05-21 13:30 | Callum Birkett and Gunnar Hornig | Gunnar Hornig, Callum Birkett (University of Dundee, UK) | Magnetic Helicity and the Calabi Invariant |
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| 2021-04-16 13:00 | Shangbin Yang | Shangbin Yang | Modeling, Observing and MHD Simulations of relative magnetic helicity and its applications to the solar activity |
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| 2021-04-16 14:00 | Narita, Y. | Narita, Y. (Space Research Institute, Austrian Academy of Sciences, Graz, Austria) | Magnetic helicity measurements in the solar wind |
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| 2021-03-25 13:00 | Nobumitsu Yokoi | Nobumitsu Yokoi | Unappreciated helicity effects in hydrodynamic and magnetohydrodynamic turbulence |
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| 2021-03-25 13:30 | Etienne Pariat | E. Pariat, G. Valori, L. Linan, K. Moraitis, J.L. Leake, J. Thalmann, X. Sun, K. Dalmasse | Magnetic helicity as a marker of solar eruptivity: the helicity-based eruptivity index |
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| 2020-12-17 13:00 | P. F. Chen | Chen, Peng-Fei | Magnetic configuration and helicity of solar filaments |
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| 2020-12-17 14:00 | Teissier, J.-M. | Teissier J.-M., Müller, W.-C. | Magnetic helicity inverse transfer in supersonic isothermal MHD turbulence |
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| 2020-12-15 12:00 | Jian-Zhou Zhu | Jian-Zhou Zhu | Compressible 'helical' turbulence: Fastened-structure geometry and statistics |
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| 2020-12-11 13:00 | Sung-Hong Park | Sung-Hong Park, Kanya Kusano, K. D. Leka | Magnetic Helicity Flux across Solar Active Region Photospheres: Hemispheric Sign Preference in Solar Cycle 24 |
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| 2020-12-11 13:30 | Avishek Ranjan | Avishek Ranjan, P. A. Davidson, U. R. Christensen, J. Wicht | On the generation and segregation of kinetic helicity in geodynamo simulations |
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| 2020-12-03 13:00 | Shin Toriumi | Toriumi S. | Convective Flux Emergence Simulations of the Generation of Flare-prolific Active Regions |
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| 2020-12-03 13:30 | Olga Khabarova | Olga Khabarova, Helmi Malova, Roman Kislov, Lev Zelenyi, Vladimir Obridko, Alexander Kharshiladze, and Vladimir Kuznetsov | Polar magnetic tornadoes – the structures that connect the Sun and the heliosphere |
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| 2020-11-05 13:00 | Christopher Prior | Christopher Prior, Zack Sierzega and Jeff Wereszczynski | Using writhing to characterise DNA topology (with a little help from solar physics). |
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| 2020-11-05 14:00 | Simon Candelaresi | Simon Candelaresi, Gunnar Hornig | Magnetic helicity in periodic domains |
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| 2020-10-30 13:00 | Semikoz Victor | Semikoz V.B., Sokoloff D.D. | Effects of P-noninvariance in the magnetic field generation of the celestial bodies |
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| 2020-10-30 13:45 | Maxim Dvornikov | Maxim Dvornikov | Magnetic helicity in rotating neutron stars consisting of electroweakly interacting inhomogeneous matter |
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| 2020-10-16 13:00 | Philippa Browning | Philippa Browning | Helicity-conserving relaxation in unstable and merging twisted magnetic flux ropes |
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| 2020-10-16 14:00 | Fabio Del Sordo | Simon Candelaresi and Fabio Del Sordo | The stabilizing effect of helical magnetic fields on intergalactic cavities |
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| 2020-10-08 13:00 | Anthony Yeates | Anthony Yeates | Does a potential magnetic field contain helicity? |
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| 2020-10-08 14:00 | Franck Plunian | Franck Plunian, Andrei Teimurazov, Rodion Stepanov, Mahendra K. Verma | Inverse cascade of energy in helical turbulence |
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| 2020-09-25 13:00 | David MacTaggart | David MacTaggart, Chris Prior | Magnetic winding – a key to unlocking topological complexity in flux emergence |
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| 2020-09-25 14:00 | J. K. Thalmann | J. K. Thalmann, L. Linan, K. Moraitis, X. Sun, E. Pariat, G. Valori, M. Gupta, K. Dalmasse | Magnetic helicity as indicator for solar eruptivity |
|
Recordings
(click on PDF/PPT/MP4 to download corresponding content)
2021-06-11 J. Warnecke ( PDF, MP4 )
Modelling Solar and Stellar Activity Driven by Turbulent Dynamo Effects and Helicity
2021-06-11 R. Stepanov ( PDF, MP4 )
Kinematic Dynamo in Tetrahedron of Fourier Modes
2021-05-21 C. Brikett ( PDF, MP4 )
Magnetic Helicity and the Calabi Invariant
2021-05-21 J. Zhu ( PDF, MP4 )
Dissipation-Range Nonuniversality from Helicity Fastening Effects on the Complex Singularities
2021-04-16 Y. Narita ( PDF, MP4 )
Magnetic helicity measurements in the solar wind
2021-04-16 S. Yang ( PDF, MP4 )
Modeling, Observing and MHD Simulations of Relative Magnetic Helicity and its applications to the solar activity
2021-03-25 E. Pariat ( PDF, MP4 )
Magnetic helicity as a marker of solar eruptivity: the helicity-based eruptivity index
2021-03-25 N. Yokoi ( PDF, MP4 )
Unappreciated helicity effects in hydrodynamic and magnetohydrodynamic turbulence
2020-12-17 J.-M. Teissier ( PDF, DRW, MP4 )
Magnetic helicity inverse transfer in supersonic isothermal MHD turbulence
2020-12-17 P. Chen ( PDF, MP4)
Magnetic configuration and helicity of solar filaments
2020-12-15 J. Zhu ( PDF, MP4)
Compressible ‘helical’ turbulence: Fastened-structure geometry and statistics
2020-12-11 A. Ranjan ( PDF, MP4)
On the generation and segregation of kinetic helicity in geodynamo simulations.
2020-12-11 S. Park ( PDF, MP4)
Magnetic Helicity Flux across Solar Active Region Photospheres: Hemispheric Sign Preference in Solar Cycle 24
2020-12-03 O. Khabarova ( PDF, MP4)
Polar magnetic tornadoes – the structures that connect the Sun and the heliosphere
2020-12-03 S. Toriumi ( PDF, VIDEO, MP4)
Convective Flux Emergence Simulations of the Generation of Flare-prolific Active Regions
2020-11-05 S. Candelaresi ( PDF, MP4)
Magnetic helicity in periodic domains.
2020-11-05 C. Prior ( PDF, MP4)
Using writhing to characterise DNA topology (with a little help from solar physics).
2020-10-30 V. Semikoz ( PDF, MP4)
Effects of P-noninvariance in the magnetic field generation of the celestial bodies.
2020-10-30 M. Dvornikov ( PDF, MP4)
Magnetic helicity in rotating neutron stars consisting of electroweakly interacting inhomogeneous matter.
2020-10-16 P. Browning ( PPTX, MP4)
Helicity-conserving relaxation in unstable and merging twisted magnetic flux ropes.
2020-10-16 F. Del Sordo ( PPTX, MP4)
The stabilizing effect of helical magnetic fields on intergalactic cavities.
2020-10-08 A. Yeates ( PDF, MP4)
Does a potential magnetic field contain helicity ?
2020-10-08 M. Plunian ( PDF, MP4)
Inverse cascade of energy in helical turbulence.
2020-09-25 D. MacTaggart ( PDF, MP4)
Magnetic winding – a key to unlocking topological complexity in flux emergence
2020-09-25 J. Thalmann ( PDF, MP4)
Magnetic helicity as indicator for solar eruptivity
2021-06-11 J. Warnecke ( PDF, MP4 )
Modelling Solar and Stellar Activity Driven by Turbulent Dynamo Effects and Helicity
2021-06-11 R. Stepanov ( PDF, MP4 )
Kinematic Dynamo in Tetrahedron of Fourier Modes
2021-05-21 C. Brikett ( PDF, MP4 )
Magnetic Helicity and the Calabi Invariant
2021-05-21 J. Zhu ( PDF, MP4 )
Dissipation-Range Nonuniversality from Helicity Fastening Effects on the Complex Singularities
2021-04-16 Y. Narita ( PDF, MP4 )
Magnetic helicity measurements in the solar wind
2021-04-16 S. Yang ( PDF, MP4 )
Modeling, Observing and MHD Simulations of Relative Magnetic Helicity and its applications to the solar activity
2021-03-25 E. Pariat ( PDF, MP4 )
Magnetic helicity as a marker of solar eruptivity: the helicity-based eruptivity index
2021-03-25 N. Yokoi ( PDF, MP4 )
Unappreciated helicity effects in hydrodynamic and magnetohydrodynamic turbulence
2020-12-17 J.-M. Teissier ( PDF, DRW, MP4 )
Magnetic helicity inverse transfer in supersonic isothermal MHD turbulence
2020-12-17 P. Chen ( PDF, MP4)
Magnetic configuration and helicity of solar filaments
2020-12-15 J. Zhu ( PDF, MP4)
Compressible ‘helical’ turbulence: Fastened-structure geometry and statistics
2020-12-11 A. Ranjan ( PDF, MP4)
On the generation and segregation of kinetic helicity in geodynamo simulations.
2020-12-11 S. Park ( PDF, MP4)
Magnetic Helicity Flux across Solar Active Region Photospheres: Hemispheric Sign Preference in Solar Cycle 24
2020-12-03 O. Khabarova ( PDF, MP4)
Polar magnetic tornadoes – the structures that connect the Sun and the heliosphere
2020-12-03 S. Toriumi ( PDF, VIDEO, MP4)
Convective Flux Emergence Simulations of the Generation of Flare-prolific Active Regions
2020-11-05 S. Candelaresi ( PDF, MP4)
Magnetic helicity in periodic domains.
2020-11-05 C. Prior ( PDF, MP4)
Using writhing to characterise DNA topology (with a little help from solar physics).
2020-10-30 V. Semikoz ( PDF, MP4)
Effects of P-noninvariance in the magnetic field generation of the celestial bodies.
2020-10-30 M. Dvornikov ( PDF, MP4)
Magnetic helicity in rotating neutron stars consisting of electroweakly interacting inhomogeneous matter.
2020-10-16 P. Browning ( PPTX, MP4)
Helicity-conserving relaxation in unstable and merging twisted magnetic flux ropes.
2020-10-16 F. Del Sordo ( PPTX, MP4)
The stabilizing effect of helical magnetic fields on intergalactic cavities.
2020-10-08 A. Yeates ( PDF, MP4)
Does a potential magnetic field contain helicity ?
2020-10-08 M. Plunian ( PDF, MP4)
Inverse cascade of energy in helical turbulence.
2020-09-25 D. MacTaggart ( PDF, MP4)
Magnetic winding – a key to unlocking topological complexity in flux emergence
2020-09-25 J. Thalmann ( PDF, MP4)
Magnetic helicity as indicator for solar eruptivity
News
New info for Conference participants