The main focus of my research is magnetohydrodynamic (MHD) modelling of three-dimensional magnetic fields, with applications to astrophysical plasmas. I am particularly interested in the theory of magnetic reconnection in three dimensions. I am part of the MHD research group - click here to visit the MHD Group Homepage.

In 2011 I was awarded a Philip Leverhulme Prize.

**Room:** G1E, Fulton Building
**Phone:** +44 1382 38 4466
**email:** dpontin 'at' maths.dundee.ac.uk
**Address:**
Division of Mathematics, University of Dundee, Nethergate, Dundee, DD1 4HN, United Kingdom

`Resistive relaxation of a line-tied, initially braided, magnetic field - see Pontin et al., A&A, 525, A57 (2011)`

- Thurgood, J. O., Pontin, D. I. and McLaughlin, J. A.
Implosive Collapse about Magnetic Null Points: A Quantitative Comparison between 2D and 3D Nulls,

*Astrophys. J.*,**855**, 50 (2018). [doi:10.3847/1538-4357/aab0a0] journal webpage -
Scott, R. B., Pontin, D. I. and Hornig, G. On the Magnetic Squashing Factor and the Lie Transport of Tangents,

*Astrophys. J.***848**, 117 (2017). [doi:10.3847/1538-4357/aa8a64] journal webpage -
Candelaresi, S., Pontin, D. I. and Hornig, G. Quantifying the Tangling of Trajectories Using the Topological Entropy,

*Chaos: An Interdisciplinary Journal of Nonlinear Science*,**27**, 093102 (2017) [doi:10.1063/1.5000812] journal webpage arXiv preprint -
Thurgood, J. O., Pontin, D. I. and McLaughlin, J. A. Three-dimensional Oscillatory Magnetic Reconnection,

*Astrophys. J.*,**844**, 1 (2017). [doi:10.3847/1538-4357/aa79fa] journal webpage -
Pontin, D. I., Janvier, M., Tiwari, S. K., Galsgaard, K., Winebarger, A. R., and Cirtain, J. W. Observable Signatures of Energy Release in Braided Coronal Loops,

*Astrophys. J.*,**837**, 108 (2017). [doi:10.3847/1538-4357/aa5ff9] journal webpage -
Candelaresi, S., Pontin, D. I. and Hornig, G. Effects of field-line topology on energy propagation in the corona,

*Astrophys. J.*,**832**, 150 (2016). [doi:10.3847/0004-637X/832/2/150] journal webpage arXiv preprint -
Pontin, D. I., Galsgaard, K. and Démoulin, P. Why are flare ribbons associated with the spines of magnetic null points generically elongated?,

*Solar Phys.*,**291**, 1739-1759 (2016). [doi:10.1007/s11207-016-0919-9] pdf arXiv preprint -
Pontin, D. I., Candelaresi, S., Russell, A. J. B. and Hornig, G. Braided magnetic fields: equilibria, relaxation and heating,

*Plasma Phys. Control. Fusion*,**58**, 054008 (2016) journal webpage arXiv preprint -
Candelaresi, S., Pontin, D. I. and Hornig, G. Magnetic field relaxation and current sheets in an ideal plasma,

*Astrophys. J.*,**808**, 134 (2015) journal webpage arXiv preprint -
Pontin, D. I. and Wyper, P. F. The effect of reconnection on the structure of the Sun's open-closed-flux boundary,

*Astrophys. J.*,**805**, 39 (2015) [doi: doi:10.1088/0004-637X/805/1/39] journal webpage arXiv preprint -
Pontin, D. I. and Hornig, G. The structure of current layers and degree of field line braiding in coronal loops,

*Astrophys. J.*,**805**, 47 (2015) [doi: doi:10.1088/0004-637X/805/1/47] journal webpage arXiv preprint

- MA41006: Mathematics of Fluids and Plasmas 1

- Undergraduate Admissions Tutor for Mathematics
- Undergraduate Adviser of Studies for Mathematics
- Research Support Fund Convener for the Edinburgh Mathematical Society

- Flux and fieldline animations for kinematic models of reconnection in 3D, at null points and in their absence.
- Animations of dynamic reconnection in the presence of a magnetically connected null point pair, in an incompressible geometry (for Pontin & Craig, 2006).
- Animations of a perturbed 3D null point.

- MHD Group Homepage, University of Dundee.
- Mathematics, University of Dundee, Scotland.
- Solar theory group homepage, University of St Andrews, Scotland.
- Mathematics Department, University of Waikato, New Zealand.
- Space Science Center, University of New Hampshire, USA.

Go to Mathematics homepage.