is a postdoc at the University of Leeds (UK), formerly at ENS (Paris) and CTR at Stanford University (USA). His research focuses on numerical methods applied to HD and MHD configurations (incompressible flows; cylindrical, spherical and complex geometries; magnetic boundary conditions) and stability analysis of rotating flows. Recently started working on anelastic approximation to magnetoconvection in stars an planets. During the KITP dynamo program hopes to learn more about stellar and geo dynamo observations and theory.

Axel Brandenburg

is professor at Nordita (Stockholm). He is currently working on large-scale dynamos, trying to bridge the gap between mean-field theory and simulations. In particular, he is interested in determining turbulent transport coefficients, the role of fluctuations, and the effects of boundaries. He is also interested in the connection between the Cadarache experiment and the Taylor-Green flow.

Benjamin Brown

is a graduate student in the Astrophysical and Planetary Science (APS) Department at the University of Colorado, Boulder. Ben is interested in global-scale stellar convection and particularly its interactions with rotation. He spins toy stars with Mark Miesch, Juri Toomre, Sacha Brun and many others and is a member of the growing ASH (Anelastic Spherical Harmonic) mob.

Matthew Browning

is an NSF postdoctoral fellow in astronomy and astrophysics at the University of Chicago. His primary research interests are in astrophysical fluid dynamics and MHD, with particular emphasis on convection and magnetism in stars. Most recently, he has been studying -- primarily using numerical simulations, but also with occasional cautious forays into observation -- the dynamo action achieved within certain fully convective stars.

Nic Brummell

is currently a professor in the Applied Mathematics and Statistics (AMS) Department at the University of California Santa Cruz (UCSC), formerly of the University of Colorado, Boulder, Colorado, and even more formerly of places substantially more English. Nic is into astrophysical and geophysical fluid dynamics, and likes to attack things in the highly nonlinear regime with large parallel computers. In particular, Nic is interested in turbulent convective dynamos, magnetoconvection and tachocline dynamics. Nic also likes to ride his bikes but does not use a dynamo for the lights.

Allan Sacha BRUN

is a full time researcher in the Service d'Astrophysique at CEA-Saclay, near Paris, France. He is also associated to LUTH, Observatory of Paris (J-P. Zahn) and to JILA, University of Colorado in Boulder (J. Toomre). He also teaches during Fall semester MHD and magnetism accross the Universe at the graduate level. His main scientific interests are: fluid dynamics, MHD, stellar magnetism, dynamo theory, stellar evolution and structure, and sismology. He is working mainly with the ASH code, but as also developped a 2-D finite element mean field dynamo code STELEM. He also loves Polar Bears ;-)

Paul Bushby

is a lecturer in the School of Mathematics and Statistics at Newcastle University, UK. He is interested in astrophysical fluid dynamics and MHD. More specifically, his main areas of research include large-scale solar and stellar dynamos, magnetoconvection and numerical simulations of convectively-driven (small-scale) dynamos.

Fritz Busse

is professor emer. at the University of Bayreuth, Germany. Formerly he was professor at UCLA where he still returns to every year. He is interested in all kinds of fluid dynamical problems that have some connection with geophysical or astrophysical phenomena. Hence the dynamo problem and its nonlinear aspects in particular have attracted his attention early on. While most of his work has been in theory and numerical simulations, he has also done laboratory experiments. He has designed, for instance, the Karlsruhe dynamo.

Fausto Cattaneo

is associate professor in the Computation Institute and Department of Astronomy and Astrophysics at the University of Chicago. He has a joint appointment with Argonne National Laboratory. He is interested in dynamo theory, hydro and MHD turbulence, nonlinear systems, computational fluid dynamics and high performance computing. He has a horror for bad numerical simulations.

Alice Courvoisier

is a postdoctoral research associate at the University of Leeds, UK. Her research focuses on the determination of turbulent transport coefficients, in particular the alpha-effect of Mean Field Electrodynamics.

Tina Davies

is a graduate student at University of Leeds, UK. Her work so far has been focused on the possibility of driving the solar dynamo via the magnetic buoyancy instability.

Pat Diamond

is a professor of physics at University of California ,San Diego.He works primarily in magnetic fusion and theoretical plasma physics,and has active interests in dynamo theory-especially self-consistent mean field electrodynamics (assuming such is possible) ,tachocline MHD (especially momentum transport and the formation of zonal jets),dynamics of cosmic ray acceleration and accretion disk transport processes.While at KITP,he hopes to learn about geodynamo theory and laboratory dynamo experiments.

David Galloway

is a senior lecturer in the School of Mathemativs and Statistics, University of Sydney, Australia. His main research interests are in astrophysical MHD, especially problems involving dynamo theory and magnetoconvection. For several years he was involved in the development of fast dynamo theory, and most recently he has been working on strong-field and often laminar dynamos where the total magnetic and kinetic energies are almost equal to one another.

Martha Evonuk

is a postdoctoral researcher in Theoretische Physik I at Universität Bayreuth in Germany. Formally of the Earth and Planetary Magnetism group at ETH Zürich and Earth and Planetary Sciences at the University of California, Santa Cruz, her main research insterest is numerical modeling of convection in the interiors of giant planets.

Gary Glatzmaier

is a professor of Earth and Planetary Sciences at the University of California, Santa Cruz. He studies the fluid dynamics and magnetohydrodynamics of the interiors and atmospheres of planets and stars by writing and using computer models that simulate these problems on parallel computers.

David Gubbins

is professor of geophysics at the School of Earth and Environment, University of Leeds, UK. He is interested in all aspects of geomagnetism, both theoretical and observational, and has recently focussed on the influence of lateral variations in heat flux on the core-mantle boundary on the geodynamo and geomagnetic field through numerical simulations and comparisons with paleomagnetic and geomagnetic observations. He is also working on the heat budget for the core and Earth's thermal evolution, and with TG Masters and F Nimmo has proposed a new "F"-layer around the inner core.

Andy Jackson

is professor of geophysics at the ETH Zurich. He has interests in observational geomagnetism, especially the recent and upcoming satellite missions, and in using these to constrain the dynamical regime of the core. He continues to develop models of field evolution over the last few hundred years, successors to the model gufm1. With Livermore and Ierley he is working on constructing 3-D models of Taylor states in the core.

Dominique Jault

is a CNRS senior researcher at the University of Grenoble, France. His main interests are in planetary dynamos and observational geomagnetism. He is currently developing dynamical models of the Earth's core with the aim of assimilating geomagnetic data. He is involved in numerical simulations of the DTS experiment: a rapidly rotating spherical Couette flow in the presence of a strong magnetic field.

Chris Jones

is a professor in the applied mathematics department at the University of Leeds, UK. He is interested in planetary dynamos, and in simulations of rapidly rotating dynamos. He has worked on convection and magnetoconvection in rapidly rotating systems. Currently he is studying anelastic compressible convection models in connection with zonal flows in giant planets. He also has an interest in solar and stellar dynamos and the tachocline.

Shane Keating

is a Ph.D. in plasma turbulence theory at the University of California San Diego. His interests are transport processeses in MHD turbulence, the solar tachocline, and wavy fluids. He is particularly interested in problems where modest analytic calculations can lend some insight. While affiliated with KITP, Shane will be studying collisionless dynamos and the geodynamo. Shane's homepage.

Eun-jin Kim

is a senior lecturer in the School of Mathematics and Statistics, University of Sheffield, UK. Her main research interests are various transport phenomena in astrophysical and laboratory plasmas, in particular, turbulent transport, including dynamos, reconnection, momentum transport (dynamics of shear flows), transport barrier/self-regulation, intermittency, statistical formulation of multi-scale interactions. Her recent works include a theory of sheared (MHD) turbulence with rotation, with implications for a long-term dynamics of the solar tachocline.

Edgar Knobloch

is a professor of Physics at the University of California, Berkeley. His interests include geophysical and astrophysical fluid dynamics, including dynamo theory and the magnetorotational instability.Edgar's home page

Daniel Perry Lathrop

is a professor of Physics and Geology at the University of Maryland, member of the Institute for Physical Sciences and Technology, and Director
of the Institute for Research in Electronics and Applied Physics. He builds experiments to probe the effects of rotation, magnetic fields and long range quantum order on turbulence. These experiments are in liquid helium, liquid sodium, and water. He is interested in nonlinear effects, spatial complexity, MHD, singularities, turbulence, reconnection, Higgs defects, superconductivity, backpacking, cycling and kayaking. His most recent experiment weighs more than 30 tons. His group web page can be found here: http://complex.umd.edu. . Video of the three meter system spinning can be found here: http://www.youtube.com/watch?v=bm_iqzmR2cE.

Phil Livermore

is a postdoc at University of California, San Diego, formally at Leeds, UK. He is interested in many aspects of dynamo theory, his most recent work trying to nail down what it means for the geomagnetic field to be in a Taylor state. Not to be confused with the other type of Taylor state found in plasma theory.
Other interests include stability theory, in particular, how to stand upright on a surf board.

Joanne Mason

is a research associate at the University of Chicago. She was formerly at the High Altitude Observatory, Boulder, and at the University of Leeds, UK. Her research interests include problems in dynamo theory and magnetohydrodynamic turbulence.

Mark Miesch

is a staff scientist at the High Altitude Observatory, a division of the National Center for Atmospheric Research in Boulder, CO. He is interested in turbulence, magnetism, and shear in stellar interiors with a particular emphasis on high-resolution, global-scale simulations of solar and stellar convection and dynamo processes. He also maintains a keen interest in the solar tachocline, including stably-stratified turbulence, waves, and magneto-shear instabilities. In the days of yore he has also studied turbulence, waves, and shocks in interstellar molecular clouds.

Keith Moffatt

is professor (emeritus) at the University of Cambridge, UK, and Fellow of Trinity College, Cambridge. Interested in all aspects of
dynamo theory, and particularly in the problem of magnetostrophic turbulence in relation to the geodynamo. Also interested in toys
that have nontrivial dynamical behaviour: e.g. Euler's disc and its finite-time singularity, the rising egg (yes, seriously!) and its
dissipative instability, and, currently, the celt (or rattleback) as a prototype of chiral dynamics.

Henri-Claude Nataf

is a CNRS senior researcher at the Observatory of Grenoble, France. A member of the "geodynamo" team, he is involved in the "DTS" experiment : a rapidly rotating spherical Couette flow in an imposed strong magnetic field. He has interest in the manifestations of turbulence in the magnetostrophic regime expected for planetary cores. Henri-Claude's home page

Gordon Ogilvie

is a lecturer in applied mathematics at the University of Cambridge and a fellow of Clare College, Cambridge. He is interested in the dynamics, fluid dynamics and MHD of astrophysical discs and extrasolar planets. Among other things, he is trying to understand self-sustaining nonlinear activity such as the magnetorotational dynamo in accretion discs. Franck Plunian
is lecturer at the University of Grenoble, France. His research interests include dynamo theory (including mean field), shell models of MHD turbulence, dynamo experiments and more recently Alfvenic turbulence.

Karl-Heinz Rädler

is professor (emeritus) at the Astrophysical Institute Potsdam, Germany. His research interests include dynamo theory, mean-field magnetohydrodynamics and laboratory dynamo experiments.

Francois Rincon

is a CNRS researcher at the Astrophysics Laboratory of Toulouse-Tarbes, France and was until recently a postdoc at DAMTP, Cambridge, UK. He is working on several aspects of astrophysical turbulence and MHD, most notably turbulent convection in the Sun, dynamo processes in accretion disks and the physics of nonlinear transition to turbulence in shear flows.

Paul Roberts

Currently in full time employment at UCLA in Math Dept and IGPP (i.e., the Institute of Geophysics and Planetary Physics). Previously at University of Newcastle upon Tyne, UK, and before that at Yerkes Observatory, U of Chicago.

Graeme Sarson

is a lecturer of applied mathematics at Newcastle University, U.K. His research interests include the magnetohydrodynamics of the geodynamo and other terrestrial planetary dynamos, mainly working on numerical calculations of convection-driven dynamos. He is also currently working on low order models and turbulent shell models for the geodynamo, to investigate the statistics of geomagnetic variations and reversals.

Dmitry Shapovalov

is currently a graduate student at Johns Hopkins University. He is working on a theory of turbulent dynamos based not on alpha-effect, but on magnetic helicity transfer. He studies dynamos both analytically and via direct numerical simulations, which are generally applicable for astrophysical objects.

Lara Silvers

Is a postdoctoral researcher at the University of Cambridge. Formerly at the ENS (Paris), UCSD (USA) and the University of Leeds (UK). Her research interests include aspects of dynamo theory, magnetic instabilities (MRI, MTI), magnetoconvection and turbulent diffusion.

Kandaswamy Subramanian

is a Professor at IUCAA (Inter University Centre for Astronomy and Astrophysics) in Pune, India. Currently interested in the origin of cosmic magnetism and also Cosmology and Structure formation in the universe. Most recently dabbeled in understanding helicity and its flux in mean field dynamos. Keen to understand saturation in both mean-field and fluctuation dynamos and to learn about geodynamos from experts here. Has also worked on Gravitational lensing, the structure of dark matter halos, primordial fields and the CMB and the high redshift universe.

Steve Tobias

is a professor of applied mathematics at the University of Leeds, U.K. His research interests include astrophysical fluid dynamics with particular emphasis on magnetohydrodynamics and dynamo theory. He focuses on the turbulent interaction of magnetic fields and plasmas and the generation of the solar cycle. Topics of interest include the generation of large-scale fields, dynamos at low Pm, dynamos via instabilities and tachocline dynamics.

Juri Toomre

is a professor of astrophysics at the University of Coloroda in Boulder. He is fascinated by how stars like the Sun build and
maintain their magnetic fields, using 3-D simulations to study such coupling between turbulent convection, rotation and
magnetism in full spherical shells. He is also involved with the practice of helioseismology, using it to provide guidance about
differential rotation and large-scale subsurface flows within the Sun, and of their interaction with active regions.

Ethan Vishniac

is a professor in the Physics and Astronomy Department of McMaster University, Canada. He used to be an American, and may be again, depending on his wife and political developments in the US, but he hopes to never again live in Texas. His research interests include astrophysical dynamos in disks and the theory of turbulent dynamos. Topics of particularly interest include the origin of galactic magnetic fields, the role of magnetic helicity in dynamos, the turbulent cascade in MHD, angular momentum transport in accretion disks and turbulent reconnection. He has previously worked on shock wave instabilities, the formation of large scale structure in the universe and the CMB.

Ellen Zweibel

is a professor in the Astronomy and Physics Departments at the University of Wisconsin-Madison. Her interests are
in theoretical astrophysics, especially the origin and evolution of magnetic fields.

## Participants in Dynamo08

Please place your sketch in alphabetical order by last name## Table of Contents

## Piotr Boroński

is a postdoc at the University of Leeds (UK), formerly at ENS (Paris) and CTR at Stanford University (USA). His research focuses on numerical methods applied to HD and MHD configurations (incompressible flows; cylindrical, spherical and complex geometries; magnetic boundary conditions) and stability analysis of rotating flows. Recently started working on anelastic approximation to magnetoconvection in stars an planets. During the KITP dynamo program hopes to learn more about stellar and geo dynamo observations and theory.## Axel Brandenburg

is professor at Nordita (Stockholm). He is currently working on large-scale dynamos, trying to bridge the gap between mean-field theory and simulations. In particular, he is interested in determining turbulent transport coefficients, the role of fluctuations, and the effects of boundaries. He is also interested in the connection between the Cadarache experiment and the Taylor-Green flow.## Benjamin Brown

is a graduate student in the Astrophysical and Planetary Science (APS) Department at the University of Colorado, Boulder. Ben is interested in global-scale stellar convection and particularly its interactions with rotation. He spins toy stars with Mark Miesch, Juri Toomre, Sacha Brun and many others and is a member of the growing ASH (Anelastic Spherical Harmonic) mob.## Matthew Browning

is an NSF postdoctoral fellow in astronomy and astrophysics at the University of Chicago. His primary research interests are in astrophysical fluid dynamics and MHD, with particular emphasis on convection and magnetism in stars. Most recently, he has been studying -- primarily using numerical simulations, but also with occasional cautious forays into observation -- the dynamo action achieved within certain fully convective stars.## Nic Brummell

is currently a professor in the Applied Mathematics and Statistics (AMS) Department at the University of California Santa Cruz (UCSC), formerly of the University of Colorado, Boulder, Colorado, and even more formerly of places substantially more English. Nic is into astrophysical and geophysical fluid dynamics, and likes to attack things in the highly nonlinear regime with large parallel computers. In particular, Nic is interested in turbulent convective dynamos, magnetoconvection and tachocline dynamics. Nic also likes to ride his bikes but does not use a dynamo for the lights.## Allan Sacha BRUN

is a full time researcher in the Service d'Astrophysique at CEA-Saclay, near Paris, France. He is also associated to LUTH, Observatory of Paris (J-P. Zahn) and to JILA, University of Colorado in Boulder (J. Toomre). He also teaches during Fall semester MHD and magnetism accross the Universe at the graduate level. His main scientific interests are: fluid dynamics, MHD, stellar magnetism, dynamo theory, stellar evolution and structure, and sismology. He is working mainly with the ASH code, but as also developped a 2-D finite element mean field dynamo code STELEM. He also loves Polar Bears ;-)## Paul Bushby

is a lecturer in the School of Mathematics and Statistics at Newcastle University, UK. He is interested in astrophysical fluid dynamics and MHD. More specifically, his main areas of research include large-scale solar and stellar dynamos, magnetoconvection and numerical simulations of convectively-driven (small-scale) dynamos.## Fritz Busse

is professor emer. at the University of Bayreuth, Germany. Formerly he was professor at UCLA where he still returns to every year. He is interested in all kinds of fluid dynamical problems that have some connection with geophysical or astrophysical phenomena. Hence the dynamo problem and its nonlinear aspects in particular have attracted his attention early on. While most of his work has been in theory and numerical simulations, he has also done laboratory experiments. He has designed, for instance, the Karlsruhe dynamo.

is associate professor in the Computation Institute and Department of Astronomy and Astrophysics at the University of Chicago. He has a joint appointment with Argonne National Laboratory. He is interested in dynamo theory, hydro and MHD turbulence, nonlinear systems, computational fluid dynamics and high performance computing. He has a horror for bad numerical simulations.Fausto Cattaneo

is a postdoctoral research associate at the University of Leeds, UK. Her research focuses on the determination of turbulent transport coefficients, in particular the alpha-effect of Mean Field Electrodynamics.Alice Courvoisier## Tina Davies

is a graduate student at University of Leeds, UK. Her work so far has been focused on the possibility of driving the solar dynamo via the magnetic buoyancy instability.

is a professor of physics at University of California ,San Diego.He works primarily in magnetic fusion and theoretical plasma physics,and has active interests in dynamo theory-especially self-consistent mean field electrodynamics (assuming such is possible) ,tachocline MHD (especially momentum transport and the formation of zonal jets),dynamics of cosmic ray acceleration and accretion disk transport processes.While at KITP,he hopes to learn about geodynamo theory and laboratory dynamo experiments.Pat Diamond

is a senior lecturer in the School of Mathemativs and Statistics, University of Sydney, Australia. His main research interests are in astrophysical MHD, especially problems involving dynamo theory and magnetoconvection. For several years he was involved in the development of fast dynamo theory, and most recently he has been working on strong-field and often laminar dynamos where the total magnetic and kinetic energies are almost equal to one another.David Galloway

is a postdoctoral researcher in Theoretische Physik I at Universität Bayreuth in Germany. Formally of the Earth and Planetary Magnetism group at ETH Zürich and Earth and Planetary Sciences at the University of California, Santa Cruz, her main research insterest is numerical modeling of convection in the interiors of giant planets.Martha Evonuk

is a professor of Earth and Planetary Sciences at the University of California, Santa Cruz. He studies the fluid dynamics and magnetohydrodynamics of the interiors and atmospheres of planets and stars by writing and using computer models that simulate these problems on parallel computers.Gary Glatzmaier

is professor of geophysics at the School of Earth and Environment, University of Leeds, UK. He is interested in all aspects of geomagnetism, both theoretical and observational, and has recently focussed on the influence of lateral variations in heat flux on the core-mantle boundary on the geodynamo and geomagnetic field through numerical simulations and comparisons with paleomagnetic and geomagnetic observations. He is also working on the heat budget for the core and Earth's thermal evolution, and with TG Masters and F Nimmo has proposed a new "F"-layer around the inner core.David Gubbins## Andy Jackson

is professor of geophysics at the ETH Zurich. He has interests in observational geomagnetism, especially the recent and upcoming satellite missions, and in using these to constrain the dynamical regime of the core. He continues to develop models of field evolution over the last few hundred years, successors to the model gufm1. With Livermore and Ierley he is working on constructing 3-D models of Taylor states in the core.## Dominique Jault

is a CNRS senior researcher at the University of Grenoble, France. His main interests are in planetary dynamos and observational geomagnetism. He is currently developing dynamical models of the Earth's core with the aim of assimilating geomagnetic data. He is involved in numerical simulations of the DTS experiment: a rapidly rotating spherical Couette flow in the presence of a strong magnetic field.## Chris Jones

is a professor in the applied mathematics department at the University of Leeds, UK. He is interested in planetary dynamos, and in simulations of rapidly rotating dynamos. He has worked on convection and magnetoconvection in rapidly rotating systems. Currently he is studying anelastic compressible convection models in connection with zonal flows in giant planets. He also has an interest in solar and stellar dynamos and the tachocline.## Shane Keating

is a Ph.D. in plasma turbulence theory at the University of California San Diego. His interests are transport processeses in MHD turbulence, the solar tachocline, and wavy fluids. He is particularly interested in problems where modest analytic calculations can lend some insight. While affiliated with KITP, Shane will be studying collisionless dynamos and the geodynamo. Shane's homepage.

is a senior lecturer in the School of Mathematics and Statistics, University of Sheffield, UK. Her main research interests are various transport phenomena in astrophysical and laboratory plasmas, in particular, turbulent transport, including dynamos, reconnection, momentum transport (dynamics of shear flows), transport barrier/self-regulation, intermittency, statistical formulation of multi-scale interactions. Her recent works include a theory of sheared (MHD) turbulence with rotation, with implications for a long-term dynamics of the solar tachocline.Eun-jin Kim## Edgar Knobloch

is a professor of Physics at the University of California, Berkeley. His interests include geophysical and astrophysical fluid dynamics, including dynamo theory and the magnetorotational instability.Edgar's home page## Daniel Perry Lathrop

is a professor of Physics and Geology at the University of Maryland, member of the Institute for Physical Sciences and Technology, and Directorof the Institute for Research in Electronics and Applied Physics. He builds experiments to probe the effects of rotation, magnetic fields and long range quantum order on turbulence. These experiments are in liquid helium, liquid sodium, and water. He is interested in nonlinear effects, spatial complexity, MHD, singularities, turbulence, reconnection, Higgs defects, superconductivity, backpacking, cycling and kayaking. His most recent experiment weighs more than 30 tons. His group web page can be found here: http://complex.umd.edu. . Video of the three meter system spinning can be found here: http://www.youtube.com/watch?v=bm_iqzmR2cE.

is a postdoc at University of California, San Diego, formally at Leeds, UK. He is interested in many aspects of dynamo theory, his most recent work trying to nail down what it means for the geomagnetic field to be in a Taylor state. Not to be confused with the other type of Taylor state found in plasma theory.Phil LivermoreOther interests include stability theory, in particular, how to stand upright on a surf board.

## Joanne Mason

is a research associate at the University of Chicago. She was formerly at the High Altitude Observatory, Boulder, and at the University of Leeds, UK. Her research interests include problems in dynamo theory and magnetohydrodynamic turbulence.

is a staff scientist at the High Altitude Observatory, a division of the National Center for Atmospheric Research in Boulder, CO. He is interested in turbulence, magnetism, and shear in stellar interiors with a particular emphasis on high-resolution, global-scale simulations of solar and stellar convection and dynamo processes. He also maintains a keen interest in the solar tachocline, including stably-stratified turbulence, waves, and magneto-shear instabilities. In the days of yore he has also studied turbulence, waves, and shocks in interstellar molecular clouds.Mark Miesch

is professor (emeritus) at the University of Cambridge, UK, and Fellow of Trinity College, Cambridge. Interested in all aspects ofKeith Moffattdynamo theory, and particularly in the problem of magnetostrophic turbulence in relation to the geodynamo. Also interested in toys

that have nontrivial dynamical behaviour: e.g. Euler's disc and its finite-time singularity, the rising egg (yes, seriously!) and its

dissipative instability, and, currently, the celt (or rattleback) as a prototype of chiral dynamics.

is a CNRS senior researcher at the Observatory of Grenoble, France. A member of the "geodynamo" team, he is involved in the "DTS" experiment : a rapidly rotating spherical Couette flow in an imposed strong magnetic field. He has interest in the manifestations of turbulence in the magnetostrophic regime expected for planetary cores. Henri-Claude's home pageHenri-Claude Nataf## Gordon Ogilvie

is a lecturer in applied mathematics at the University of Cambridge and a fellow of Clare College, Cambridge. He is interested in the dynamics, fluid dynamics and MHD of astrophysical discs and extrasolar planets. Among other things, he is trying to understand self-sustaining nonlinear activity such as the magnetorotational dynamo in accretion discs.Franck Plunianis lecturer at the University of Grenoble, France. His research interests include dynamo theory (including mean field), shell models of MHD turbulence, dynamo experiments and more recently Alfvenic turbulence.

is professor (emeritus) at the Astrophysical Institute Potsdam, Germany. His research interests include dynamo theory, mean-field magnetohydrodynamics and laboratory dynamo experiments.Karl-Heinz Rädler## Francois Rincon

is a CNRS researcher at the Astrophysics Laboratory of Toulouse-Tarbes, France and was until recently a postdoc at DAMTP, Cambridge, UK. He is working on several aspects of astrophysical turbulence and MHD, most notably turbulent convection in the Sun, dynamo processes in accretion disks and the physics of nonlinear transition to turbulence in shear flows.

Currently in full time employment at UCLA in Math Dept and IGPP (i.e., the Institute of Geophysics and Planetary Physics). Previously at University of Newcastle upon Tyne, UK, and before that at Yerkes Observatory, U of Chicago.Paul Roberts## Graeme Sarson

is a lecturer of applied mathematics at Newcastle University, U.K. His research interests include the magnetohydrodynamics of the geodynamo and other terrestrial planetary dynamos, mainly working on numerical calculations of convection-driven dynamos. He is also currently working on low order models and turbulent shell models for the geodynamo, to investigate the statistics of geomagnetic variations and reversals.

is currently a graduate student at Johns Hopkins University. He is working on a theory of turbulent dynamos based not on alpha-effect, but on magnetic helicity transfer. He studies dynamos both analytically and via direct numerical simulations, which are generally applicable for astrophysical objects.Dmitry Shapovalov## L

Is a postdoctoral researcher at the University of Cambridge. Formerly at the ENS (Paris), UCSD (USA) and the University of Leeds (UK). Her research interests include aspects of dynamo theory, magnetic instabilities (MRI, MTI), magnetoconvection and turbulent diffusion.ara Silvers## Kandaswamy Subramanian

is a Professor at IUCAA (Inter University Centre for Astronomy and Astrophysics) in Pune, India. Currently interested in the origin of cosmic magnetism and also Cosmology and Structure formation in the universe. Most recently dabbeled in understanding helicity and its flux in mean field dynamos. Keen to understand saturation in both mean-field and fluctuation dynamos and to learn about geodynamos from experts here. Has also worked on Gravitational lensing, the structure of dark matter halos, primordial fields and the CMB and the high redshift universe.

is a professor of applied mathematics at the University of Leeds, U.K. His research interests include astrophysical fluid dynamics with particular emphasis on magnetohydrodynamics and dynamo theory. He focuses on the turbulent interaction of magnetic fields and plasmas and the generation of the solar cycle. Topics of interest include the generation of large-scale fields, dynamos at low Pm, dynamos via instabilities and tachocline dynamics.Steve Tobias

is a professor of astrophysics at the University of Coloroda in Boulder. He is fascinated by how stars like the Sun build andJuri Toomremaintain their magnetic fields, using 3-D simulations to study such coupling between turbulent convection, rotation and

magnetism in full spherical shells. He is also involved with the practice of helioseismology, using it to provide guidance about

differential rotation and large-scale subsurface flows within the Sun, and of their interaction with active regions.

## Ethan Vishniac

is a professor in the Physics and Astronomy Department of McMaster University, Canada. He used to be an American, and may be again, depending on his wife and political developments in the US, but he hopes to never again live in Texas. His research interests include astrophysical dynamos in disks and the theory of turbulent dynamos. Topics of particularly interest include the origin of galactic magnetic fields, the role of magnetic helicity in dynamos, the turbulent cascade in MHD, angular momentum transport in accretion disks and turbulent reconnection. He has previously worked on shock wave instabilities, the formation of large scale structure in the universe and the CMB.## Ellen Zweibel

is a professor in the Astronomy and Physics Departments at the University of Wisconsin-Madison. Her interests arein theoretical astrophysics, especially the origin and evolution of magnetic fields.