Curriculum vitae and list of selected publications
Axel Brandenburg
Last updated: 15 April 2022
Note: in practice, my
full CV
is likely to be (much) more uptodate!
Born: 7 April 1959 in Heide, Federal Republic of Germany
Nationality: German
Marital status: Married, 1 child
Address
Nordita, KTH Royal Institute of Technology and Stockholm University,
AlbaNova University Center,
Hannes Alfv\'ens v\"ag 12, SE  106 91 Stockholm, Sweden;
email: brandenb@nordita.org
http://www.nordita.org/~brandenb
Education
 Abitur, Werner Heisenberg Gymnasium, Heide, June 1978
 Dipl. Physik, University of Hamburg, January 1986,
Diploma thesis: Hydrodynamics of convective bubbles
in linear approximation
 Lic. Phil., University of Helsinki, February 1989,
Licentiate thesis: Kinematic dynamo theory and the solar activity cycle
 Dr. Phil., University of Helsinki, May 1990,
Doctoral dissertation: Challenges for solar dynamo theory:
effect, differential rotation and stability
Employment
Sep. 1990  Aug. 1992: Postdoctoral Research Fellow, Nordita, Copenhagen
Aug. 1992  Nov. 1992: Visiting Fellowship, University of Cambridge
Dec. 1992  Nov. 1994: Postdoctoral Research Fellow, High Altitude Observatory/NCAR, Boulder
Dec. 1994  Jan. 1996: Nordic Assistant Professor, Nordita, Copenhagen
Feb. 1996  Dec. 2000: Professor of Applied Mathematics, University of Newcastle upon Tyne
Jan. 2000  Dec. 2006: Professor of Astrophysics, Nordita (Copenhagen)
Aug. 2015  Jul. 2018: University of Colorado (Boulder): Visiting Professor
since January 2007: Professor of Astrophysics, Nordita (Stockholm) and Stockholm Univ.
Publications
(see also: http://www.nordita.org/~brandenb/pub)
Number of papers in refereed journals: 432 + 6 submitted
Number of invited conference reviews: 42
Number of communications to scientific meetings: 86
Fields of research
Solar physics,
with emphasis on dynamo theory and turbulence theory;
astrobiology, with emphasis on homochirality.
Particular interests: solar and stellar activity, helioseismology,
convection, differential rotation, galactic turbulence and magnetism,
accretion discs, fractals in turbulence, relativistic hydrodynamics,
early universe, magnetospheric physics.
Influential papers
Citations from Astrophysics Data System (ADS,
http://adsabs.harvard.edu/abstract_service.html)
 10.

Brandenburg, A., & Subramanian, K.: 2005, ``Astrophysical magnetic fields and nonlinear dynamo theory,'' Phys. Rep. 417, 1209
(number of citations on ADS: 423)
 provides a unified treatment of smallscale and largescale dynamos
 explains saturation of largescale dynamos through magnetic helicity conservation
 detailed calculation of turbulent transport coefficients using minimal tau approximation
 9.

Brandenburg, A.: 2005, ``The case for a distributed solar dynamo shaped by nearsurface shear,'' Astrophys. J. 625, 539547
(number of citations on ADS: 148)
 argues that the solar dynamo may not be located in the tachocline, as previously thought
 proposes that equatorward migration results from negative radial nearsurface shear
 first to demonstrate nonresistively limited saturation through magnetic helicity fluxes
 shows the formation of bipolar regions locally near the surface without flux tube assumption
 finds that tilt of bipolar regions depends just on shear, not on helicity (as previously thought)
 first to demonstrate that largescale fields can occur even without helicity and just shear
 8.

Brandenburg, A.: 2001, ``The inverse cascade and nonlinear alphaeffect in simulations
of isotropic helical hydromagnetic turbulence,'' Astrophys. J. 550, 824840
(number of citations on ADS: 280)
 establishes fundamental connection between inverse cascade in hydromagnetic turbulence and alpha effect in dynamo theory; first prototypical simulation of alpha effect dynamo
 inverse cascade found to operate on resistive timescale, not on dynamical, as previously thought
 shows that this has to do with magnetic helicity conservation and derives saturation formula
 7.

Korpi, M. J., Brandenburg, A., Shukurov, A., Tuominen, I.,
& Nordlund, Å.: 1999, ``A supernova regulated interstellar medium: simulations of the
turbulent multiphase medium,'' Astrophys. J. Lett. 514, L99L102
(number of citations on ADS: 112)
 first realistic 3D simulation of supernovadriven multiphase interstellar medium
 find segregation into 2 phases: warm/denser and hot/dilute and gives filling factors
 demonstrates different rms velocities in warm (∼10 km/s)
and hot (∼40 km/s) components
 6.

Beck, R., Brandenburg, A., Moss, D., Shukurov, A., &
Sokoloff, D.: 1996, ``Galactic magnetism: recent developments and perspectives,'' Ann. Rev. Astron. Astrophys. 34, 155206
(number of citations on ADS: 517)
 discussion of measurements of synchrotron radiation and dynamo theory for nearby galaxies
 detailed models allowing for spiral structure, starbursts, galactic winds, and fountain flows
 5.

Brandenburg, A., Enqvist, K., & Olesen, P.: 1996, ``Largescale magnetic fields from hydromagnetic turbulence
in the very early universe,'' Phys. Rev. D 54, 12911300
(number of citations on ADS: 113)
 was the first to point out the possibility of an inverse cascade in
the early Universe
 addresses problem of horizonscale magnetic fields from the
electroweak phase transition; the horizon scale would be ∼3 cm
corresponding to 1 AU after cosmological expansion, but emphasizes that
this would become several kpc with inverse cascade
 first to establish a shell model with magnetic helicity conservation
 points out that in a flat expanding Universe the covariant
hydromagnetic equation are the same as the usual relativistic ones
for rescaled variables and conformal time
 4.

Brandenburg, A., Jennings, R. L., Nordlund, Å.,
Rieutord, M., Stein, R. F., & Tuominen, I.: 1996, ``Magnetic structures in a dynamo simulation,'' J. Fluid Mech. 306, 325352
(number of citations on ADS: 138)
 detailed analysis of turbulent downward pumping in the vicinity of strong tubes
 discovers the phenomenon of vortex buoyancy in low Prandtl number rotating convection
 first analysis of correlations of magnetic fields with eigenvector of rateofstrain matrix
 3.

Brandenburg, A., Nordlund, Å., Stein, R. F., & Torkelsson, U.: 1995, ``Dynamogenerated turbulence and large scale magnetic fields
in a Keplerian shear flow,'' Astrophys. J. 446, 741754
(number of citations on ADS: 482)
 first simulation showing that turbulence can be driven by the BalbusHawley (or magnetorotational) instability with a field that in turn is generated by this very same turbulence
 establishes selfconsistent value for disc viscosity with ShakuraSunyaev alpha of about 0.01
 discovers oscillatory migratory largescale field in shearing box simulation
 finds that the dynamo alpha in shearing boxes is negative in the upper disc plane
 first application of what is now known as the advective gauge for the magnetic vector potential
 2.

Nordlund, Å., Brandenburg, A., Jennings, R. L., Rieutord, M.,
Ruokolainen, J., Stein, R. F., & Tuominen, I.: 1992, ``Dynamo action in stratified convection with overshoot,'' Astrophys. J. 392, 647652
(number of citations on ADS: 169)
 first fully compressible hydromagnetic dynamo simulation
 addresses the then still prevailing idea of magnetic buoyancy by which magnetic flux would be removed before the dynamo has a chance to operate
 shows that there is turbulent downward pumping and finds that it is at least equally strong than magnetic buoyancy
 proposes that the dynamo works in the entire convection zone, but pumping concentrates magnetic flux at the bottom of the convection zone
 argues that this mechanism is relevant to the Sun and other stars
 1.

Brandenburg, A., Krause, F., Meinel, R., Moss, D., & Tuominen,
I.: 1989, ``The stability of nonlinear dynamos and the limited role of kinematic
growth rates,'' Astron. Astrophys. 213, 411422
(number of citations on ADS: 135)
 first simulation showing stable mixed parity solutions of nonlinear dynamo equations
 relevant for explaining Maunderminimum type variations of solar/stellar activity
 argues against the significance of relative growth rate differences to the supercritical regime
Organization of conferences
Feb 1996 NorFA Winter School on Magnetic fields in Space and Astrophysics (Levitunturi, Finnish Lapland)
May 1997 UKMHD meeting (Newcastle, England)
Jan 2000 Physics of Accretion and Associated Outflows (Copenhagen)
Jul 2000 Nordita Master Class in Physics (Copenhagen)
Mar 2001 Dynamos in the Laboratory, Computer, and the Sky (Copenhagen)
Jul 2001 Nordita Master Class in Physics (Hillerød)
Jul 2002 Nordita Master Class in Physics (Hillerød)
Jan 2004 Astrobiological Problems for Physicists (Copenhagen)
Aug 2004 Astrobiological Problems for Physicists and Biologists (Turku, Finland)
Sep 2004 Cosmic Ray Dynamics: from Turbulent to Galactic Scale Magnetic Fields (Copenhagen)
Jan 2005 Meeting on Nordic Science Outreach (Copenhagen)
Jan 2005 Astrobiology and Origins of Life (Copenhagen)
Jul 2005 Nordita Master Class in Physics (Hillerød, in July)
Jan 2006 Winter School on Astrobiology (Levitunturi, Finnish Lapland)
Jun 2006 Workshop on Torsional oscillations in the Sun (Copenhagen)
May 2007 New Trends in Radiation Hydrodynamics (Stockholm)
Aug 2007 Pencil Code User Meeting (Stockholm)
Nov 2007 Joint Nordic and SwAN Astrobiology meeting (Stockholm)
Feb 2008 Program on the Origins of Homochirality (Stockholm)
Sep 1009 Program on Solar and Stellar Cycles (Stockholm)
May 2010 Program on Turbulent combustion (Stockholm)
Feb 2011 RädlerFest: α effect and beyond (Stockholm)
May 2011 Program on Predictability + School on Data Assimilation (Stockholm)
Jul 2011 Program on Dynamo, Dynamical Systems and Topology (Stockholm)
Oct 2012 12th European Workshop on Astrobiology (Stockholm)
Jun 2015 Program on Origin, Evolution, and Signatures of Cosmological Magnetic Fields (Stockholm)
$Date: 2022/12/02 04:49:47 $, $Author: brandenb $, $Revision: 1.47 $