Publications for David Pontin

David Pontin's Publications


In refereed journals/books:

  1. Thurgood, J. O., Pontin, D. I. and McLaughlin, J. A. On the periodicity of linear and nonlinear oscillatory reconnection,
    Submitted to A&A
  2. Pallister, R., Pontin, D. I. and Wyper, P. F. Proton Acceleration at Tearing Coronal Null-Point Current Sheets,
    Submitted to A&A

  3. 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

  4. McGavin, P. and Pontin, D. I. Reconnection of Vortex Tubes with Axial Flow,
    Submitted to Phys. Rev. Fluids

  5. 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

  6. 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

  7. 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
  8. McGavin, P. and Pontin, D. I. Vortex line topology during vortex tube reconnection,
    Phys. Rev. Fluids, 3, 054701 (2018). arXiv preprint Journal article

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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:10.1088/0004-637X/805/1/39] journal webpage arXiv preprint

  19. 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:10.1088/0004-637X/805/1/47] journal webpage arXiv preprint

  20. Candelaresi, S., Pontin, D. I. and Hornig, G. Mimetic Methods for Lagrangian Relaxation of Magnetic Fields,
    SIAM J. Sci Comput., 36, B952-B968 (2014). [doi:10.1137/140967404] journal webpage arXiv preprint

  21. Wyper, P. F. and Pontin, D. I. Dynamic Topology and Flux Rope Evolution During Non-linear Tearing of 3D Null Point Current Sheets,
    Phys. Plasmas, 21, 102102 (2014). [doi: 10.1063/1.4896060] journal webpage arXiv preprint

  22. Wyper, P. F. and Pontin, D. I. Non-linear Tearing of 3D Null Point Current Sheets,
    Phys. Plasmas, 21, 082114 (2014). [doi: 10.1063/1.4893149] journal webpage arXiv preprint

  23. Craig, I. J. D. and Pontin, D. I. Current singularities in line-tied three-dimensional magnetic fields,
    Astrophys. J., 788, 177 (2014) journal webpage arXiv preprint

  24. Pontin, D. I., Wilmot-Smith, A. L. and Hornig, G. On the relaxation of braided magnetic fields,
    Procedia IUTAM, 9, 110-120 (2013). [doi:10.1016/j.piutam.2013.09.010] pdf journal webpage

  25. Pontin, D. I., Priest, E. R. and Galsgaard, K. On the nature of reconnection at a solar coronal null point above a separatrix dome,
    Astrophys. J., 774, 154 (2013). [doi:10.1088/0004-637X/774/2/154] arXiv preprint journal webpage

  26. Wyper, P. F. and Pontin, D. I. Kelvin-Helmholtz instability in a current-vortex sheet at a 3D magnetic null,
    Phys. Plasmas, 20, 032117 (2013). arXiv preprint

  27. Wyper, P. F., Jain, R. and Pontin, D. I. Spine-Fan reconnection. The influence of temporal and spatial variation in the driver,
    A&A, 545, A78 (2012). [doi:10.1051/0004-6361/201219281] Journal page

  28. Pontin, D. I. and Huang, Y.-M. On the formation of current sheets in response to the compression or expansion of a potential magnetic field,
    Astrophys. J., 756, 7 (2012). [doi: 10.1088/0004-637X/756/1/7] arXiv preprint

  29. Pontin, D. I. Theory of magnetic reconnection in solar and astrophysical plasmas,
    Phil. Trans R. Soc. A, 370, 3169-3192 (2012). [doi:10.1098/rsta.2011.0501] pdf

  30. Wilmot-Smith, A. L., Pontin, D. I., Yeates, A.R. and Hornig, G. Heating of braided coronal loops,
    A&A, 536, A67 (2011). [doi:10.1051/0004-6361/201117942] arXiv preprint

  31. Galsgaard, K. and Pontin, D. I. Current accumulation at an asymmetric 3D null point caused by generic shearing motions,
    A&A, 534, A2 (2011). [doi:10.1051/0004-6361/201117532] arXiv preprint

  32. Pontin, D. I., Al-Hachami, A. K., and Galsgaard, K. Generalised models for torsional spine and fan magnetic reconnection,
    A&A, 533, A78 (2011). [doi:10.1051/0004-6361/201117250] arXiv preprint

  33. Pontin, D. I. Three-dimensional magnetic reconnection regimes: A review,
    Adv. Space Res., 47, 1508-1522 (2011). [doi:10.1016/j.asr.2010.12.022] arXiv preprint

  34. Galsgaard, K. and Pontin, D. I. Steady state reconnection at a single 3D magnetic null point,
    A&A, 529, A20 (2011). [doi:10.1051/0004-6361/201014359] arXiv preprint

  35. Pontin, D. I., Wilmot-Smith, A. L., Hornig, G. and Galsgaard, K. Dynamics of braided coronal loops. II: Cascade to multiple small-scale reconnection events,
    A&A, 525, A57 (2011). [doi:10.1051/0004-6361/201014544] arXiv preprint

  36. Wilmot-Smith, A. L., Pontin, D. I. and Hornig, G. Dynamics of braided coronal loops. I. Onset of magnetic reconnection,
    A&A, 516, A5 (2010). [doi:10.1051/0004-6361/201014041] arXiv preprint

  37. Al-Hachami, A. K. and Pontin, D. I., Magnetic reconnection at 3D null points: effect of magnetic field asymmetry,
    A&A, 512, A84 (2010), [doi:10.1051/0004-6361/200913002] arXiv preprint

  38. Priest, E. R. and Pontin, D. I., 3D null point reconnection regimes,
    Phys. Plasmas, 16, 122101 (2009). [doi:10.1063/1.3257901] pdf arXiv preprint
    Copyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. http://link.aip.org/link/?PHPAEN/16/122101/1

  39. Wilmot-Smith, A. L., Hornig, G. and Pontin, D. I., Magnetic braiding and quasi-separatrix layers,
    Astrophys. J., 704, 1288-1295 (2009). [doi:10.1088/0004-637X/704/2/1288] arXiv preprint

  40. Deng, X. H. and 28 others, Dynamics and waves near multiple magnetic null points in reconnection diffusion region,
    J. Geophys. Res., 114, A07216 (2009). Journal page

  41. Pontin, D. I., Hornig, G., Wilmot-Smith, A. L. and Craig, I. J. D., Lagrangian relaxation schemes for calculating force-free magnetic fields, and their limitations,
    Astrophys. J., 700, 1449-1455 (2009). [doi:10.1088/0004-637X/700/2/1449] pdf arXiv preprint (Copyright 2009. The American Astronomical Society. All rights reserved.)

  42. Wilmot-Smith, A. L., Hornig, G. and Pontin, D. I., Magnetic braiding and parallel electric fields,
    Astrophys. J., 696, 1339-1347 (2009). [doi:10.1088/0004-637X/696/2/1339] arXiv preprint

  43. Pontin, D. I., Bhattacharjee, A. and Galsgaard, K., Current sheets at three-dimensional magnetic nulls: Effect of compressibility,
    Phys. Plasmas, 14, 052109 (2007). [doi:10.1063/1.2734949] pdf arXiv preprint

  44. Pontin, D. I., Bhattacharjee, A. and Galsgaard, K., Current sheet formation and non-ideal behaviour at three-dimensional magnetic null points,
    Phys. Plasmas, 14, 052106 (2007). [doi:10.1063/1.2722300] pdf arXiv preprint

  45. Pontin, D. I. and Galsgaard, K., Current amplification and magnetic reconnection at a 3D null point: Physical characteristics,
    J. Geophys. Res., 112, A03103 (2007). [doi:10.1029/2006JA011848] pdf arXiv preprint An edited version of this paper was published by AGU. Copyright (2007) American Geophysical Union.

  46. Pontin, D. I., Three-dimensional reconnection at magnetic null points,
    in Reconnection of magnetic fields: MHD and collisionless theory and observations, ed. J. Birn and E. R. Priest, Cambridge University Press (2007).

  47. Pontin, D. I. and Craig, I. J. D., Dynamic 3D reconnection in a separator geometry with two null points,
    Astrophys. J., 642, 568-578 (2006). pdf

  48. Pontin, D. I. and Craig, I. J. D., Current singularities at finitely compressible 3D magnetic null points,
    Phys. Plasmas, 12, 072112 (2005). pdf

  49. Pontin, D. I., Galsgaard, K., Hornig, G. and Priest, E. R., A fully magnetohydrodynamic simulation of 3D non-null reconnection,
    Phys. Plasmas, 12, 052307 (2005). ps(gzipped)

  50. Pontin, D. I., Hornig, G. and Priest, E. R., Kinematic reconnection at a magnetic null point: Fan-aligned current,
    Geophys. Astrophys. Fluid Dynamics, 99, 77-93 (2005). pdf

  51. Priest, E. R. and Pontin, D. I., Magnetic reconnection,
    in The Sun and the heliosphere as an integrated system, ed. G. Poletto and S. T. Suess, Kluwer, Dordrecht (2004). pdf

  52. Pontin, D. I., Hornig, G. and Priest, E. R., Kinematic reconnection at a magnetic null point: Spine-aligned current,
    Geophys. Astrophys. Fluid Dynamics, 98, 407-428 (2004). pdf

  53. Priest, E. R., Hornig, G. and Pontin, D. I., On the nature of three-dimensional magnetic reconnection,
    J. Geophys. Res., 108(A7), 1285 (2003). doi:10.1029/2002JA009812 ps(gzipped) An edited version of this paper was published by AGU. Copyright (2003) American Geophysical Union.

  54. Pontin, D. I., Priest, E. R. and Longcope, D., A framework for understanding the topology of complex coronal structures,
    Solar Phys., 212, 319-342 (2003). ps(gzipped)


In conference proceedings


My PhD thesis


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