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.
On the periodicity of linear and nonlinear oscillatory reconnection,

Submitted to*A&A* -
Pallister, R., Pontin, D. I. and Wyper, P. F. Proton Acceleration at Tearing Coronal Null-Point Current Sheets,

Submitted to*A&A* -
Russell, A. J. B., Démoulin, P., Hornig, G., Pontin, D. I. and Candelaresi, S. Do current and magnetic helicities have the same sign?,

Submitted to*ApJ* -
McGavin, P. and Pontin, D. I. Reconnection of Vortex Tubes with Axial Flow,

Submitted to*Phys. Rev. Fluids* -
Scott, R. B., Pontin, D. I., Yeates, A. R., Wyper, P. F. and Higginson, A. K. Magnetic Structures at the Boundary of the Closed Corona: Interpretation of S-web Arcs,

To appear in*Astrophys. J.*arXiv preprint -
Candelaresi, S., Pontin, D. I., Yeates, A. R., Bushby, P. J. and Hornig, G. Estimating the rate of field line braiding in the solar corona by photospheric flows,

*Astrophys. J.*,**864**, 157 (2018). doi:10.3847/1538-4357/aad8bc arXiv preprint - Thurgood, J. O., Pontin, D. I. and McLaughlin, J. A.
Resistively-limited current sheet implosions in planar anti-parallel (1D) and null-point containing (2D) magnetic field geometries,

*Phys. Plasmas*,**25**, 072105 (2018). doi:10.1063/1.5035489 arXiv preprint -
McGavin, P. and Pontin, D. I. Vortex line topology during vortex tube reconnection,

*Phys. Rev. Fluids*,**3**, 054701 (2018). arXiv preprint Journal article - 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

- 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.