• 1289 Citations
  • 23 h-Index
20032022

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2019

Do current and magnetic helicities have the same sign?

Russell, A. J. B., Demoulin, P., Hornig, G., Pontin, D. I. & Candelaresi, S., Oct 2019, In : Astrophysical Journal. 884, 1, p. 11 11 p.

Research output: Contribution to journalArticle

Open Access
File
71 Downloads (Pure)

Magnetic Structures at the Boundary of the Closed Corona: A Semi-automated Study of S-web Morphology

Scott, R. B., Pontin, D. I. & Wyper, P. F., 10 Sep 2019, In : Astrophysical Journal. 882, 2, p. 1-11 11 p., 125.

Research output: Contribution to journalArticle

Open Access
File
66 Downloads (Pure)

On the periodicity of linear and nonlinear oscillatory reconnection

Thurgood, J., Pontin, D. & McLaughlin, J. A., Jan 2019, In : Astronomy and Astrophysics. 621, p. 1-12 12 p., A106.

Research output: Contribution to journalArticle

Open Access
File
6 Citations (Scopus)
115 Downloads (Pure)

Proton acceleration at tearing coronal null-point current sheets

Pallister, R., Pontin, D. & Wyper, P. F., Feb 2019, In : Astronomy and Astrophysics. 622, p. 1-11 11 p., A207.

Research output: Contribution to journalArticle

Open Access
File
105 Downloads (Pure)
2018

Estimating the Rate of Field Line Braiding in the Solar Corona by Photospheric Flows

Candelaresi, S., Pontin, D., Yeates, A. R., Bushby, P. J. & Hornig, G., 12 Sep 2018, In : Astrophysical Journal. 864, 2, 9 p., 157.

Research output: Contribution to journalArticle

Open Access
File
1 Citation (Scopus)
120 Downloads (Pure)

Implosive collapse about magnetic null points: A quantitative comparison between 2D and 3D nulls

Thurgood, J., Pontin, D. & McLaughlin, J. A., 7 Mar 2018, In : Astrophysical Journal. 855, 1, p. 1-15 15 p., 50.

Research output: Contribution to journalArticle

Open Access
File
4 Citations (Scopus)
149 Downloads (Pure)

Magnetic structures at the boundary of the closed corona: interpretation of s-web arcs

Scott, R. B., Pontin, D., Yeates, A. R., Wyper, P. F. & Higginson, A. K., 12 Dec 2018, In : Astrophysical Journal. 869, 1, p. 1-14 14 p., 60.

Research output: Contribution to journalArticle

Open Access
File
4 Citations (Scopus)
114 Downloads (Pure)

Resistively-limited current sheet implosions in planar anti-parallel (1D) and null-point containing (2D) magnetic field geometries

Thurgood, J. O., Pontin, D. I. & McLaughlin, J. A., 2018, In : Physics of Plasmas. 25, 7, 17 p., 072105.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
149 Downloads (Pure)

Vortex line topology during vortex tube reconnection

Mcgavin, P. & Pontin, D., 23 May 2018, In : Physical Review Fluids. 3, 5, 054701.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
137 Downloads (Pure)
2017

Observable Signatures of Energy Release in Braided Coronal Loops

Pontin, D. I., Janvier, M., Tiwari, S. K., Galsaard, K., Winebarger, A. R. & Cirtain, J. W., 10 Mar 2017, In : Astrophysical Journal. 837, 2, p. 1-10 10 p., 108.

Research output: Contribution to journalArticle

Open Access
File
13 Citations (Scopus)
135 Downloads (Pure)

On the Magnetic Squashing Factor and the Lie Transport of Tangents

Scott, R., Pontin, D. & Hornig, G., 20 Oct 2017, In : Astrophysical Journal. 848, 2, p. 1-12 12 p., 117.

Research output: Contribution to journalArticle

Open Access
File
5 Citations (Scopus)
156 Downloads (Pure)

Quantifying the tangling of trajectories using the topological entropy

Candelaresi, S., Pontin, D. I. & Hornig, G., 5 Sep 2017, In : Chaos. 27, p. 1-11 11 p., 093102.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
138 Downloads (Pure)

Three-dimensional Oscillatory Magnetic Reconnection

Thurgood, J. O., Pontin, D. I. & McLaughlin, J. A., 17 Jul 2017, In : Astrophysical Journal. 844, 1, p. 1-12 12 p., 2.

Research output: Contribution to journalArticle

Open Access
File
24 Citations (Scopus)
133 Downloads (Pure)
2016

Braided magnetic fields: equilibria, relaxation and heating

Pontin, D. I., Candelaresi, S., Russell, A. J. B. & Hornig, G., 1 May 2016, In : Plasma Physics and Controlled Fusion. 58, 5, p. 1-10 10 p., 054008.

Research output: Contribution to journalArticle

Open Access
File
9 Citations (Scopus)
181 Downloads (Pure)

Effects of fieldline topology on energy propagation in the corona

Candelaresi, S., Pontin, D. I. & Hornig, G., 1 Dec 2016, In : Astrophysical Journal. 832, 2, p. 1-13 13 p., 150.

Research output: Contribution to journalArticle

Open Access
File
4 Citations (Scopus)
226 Downloads (Pure)

Magnetic field line braiding in the solar atmosphere

Candelaresi, S., Pontin, D. I. & Hornig, G., Oct 2016, In : Proceedings of the International Astronomical Union. 12, S327, p. 77-81 5 p.

Research output: Contribution to journalArticle

Open Access
File
146 Downloads (Pure)

Why are flare ribbons associated with the spines of magnetic null points generically elongated?

Pontin, D., Galsgaard, K. & Démoulin, P., Aug 2016, In : Solar Physics. 291, 6, p. 1739-1759 21 p.

Research output: Contribution to journalArticle

Open Access
File
17 Citations (Scopus)
134 Downloads (Pure)
2015

Magnetic field relaxation and current sheets in an ideal plasma

Candelaresi, S., Pontin, D. I. & Hornig, G., 1 Aug 2015, In : Astrophysical Journal. 808, 2, 8 p., 134.

Research output: Contribution to journalArticle

Open Access
7 Citations (Scopus)

The effect of reconnection on the structure of the Sun's open-closed-flux boundary

Pontin, D. I. & Wyper, P. F., 20 May 2015, In : Astrophysical Journal. 805, 1, 13 p., 39.

Research output: Contribution to journalArticle

14 Citations (Scopus)

The structure of current layers and degree of field line braiding in coronal loops

Pontin, D. I. & Hornig, G., 20 May 2015, In : Astrophysical Journal. 805, 1, 12 p., 47.

Research output: Contribution to journalArticle

17 Citations (Scopus)
2014

Current singularities in line-tied three-dimensional magnetic fields

Craig, I. J. D. & Pontin, D. I., 20 Jun 2014, In : Astrophysical Journal. 788, 2, 8 p., 177.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Dynamic topology and flux rope evolution during non-linear tearing of 3D null point current sheets

Wyper, P. F. & Pontin, D. I., Oct 2014, In : Physics of Plasmas. 21, 10, 11 p., 102102.

Research output: Contribution to journalArticle

Open Access
File
30 Citations (Scopus)
202 Downloads (Pure)

Mimetic methods for Lagrangian relaxation of magnetic fields

Candelaresi, S., Pontin, D. & Hornig, G., 2014, In : SIAM Journal on Scientific Computing. 36, 6, p. B952-B968 17 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Non-linear tearing of 3D null point current sheets

Wyper, P. F. & Pontin, D. I., Aug 2014, In : Physics of Plasmas. 21, 8, 10 p., 082114.

Research output: Contribution to journalArticle

Open Access
File
37 Citations (Scopus)
231 Downloads (Pure)
2013

Kelvin-Helmholtz instability in a current-vortex sheet at a 3D magnetic null

Wyper, P. F. & Pontin, D. I., Mar 2013, In : Physics of Plasmas. 20, 3, 032117.

Research output: Contribution to journalArticle

7 Citations (Scopus)

On the nature of reconnection at a solar coronal null point above a separatrix dome

Pontin, D. I., Priest, E. R. & Galsgaard, K., 10 Sep 2013, In : Astrophysical Journal. 774, 2, 10 p., 154.

Research output: Contribution to journalArticle

47 Citations (Scopus)
2012

On the formation of current sheets in response to the compression or expansion of a potential magnetic field

Pontin, D. I. & Huang, Y. -M., 1 Sep 2012, In : Astrophysical Journal. 756, 1, 6 p., 7.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Spine-fan reconnection: The influence of temporal and spatial variation in the driver

Wyper, P. F., Jain, R. & Pontin, D. I., 2012, In : Astronomy and Astrophysics. 545, 12 p., ARTN A78.

Research output: Contribution to journalArticle

8 Citations (Scopus)
20 Citations (Scopus)
2011

Current accumulation at an asymmetric 3D null point caused by generic shearing motions

Galsgaard, K. & Pontin, D. I., Oct 2011, In : Astronomy and Astrophysics. 534, p. - 8 p., A2.

Research output: Contribution to journalArticle

25 Citations (Scopus)

Dynamics of braided coronal loops: II. Cascade to multiple small-scale reconnection events

Pontin, D. I., Wilmot-Smith, A. L., Hornig, G. & Galsgaard, K., Jan 2011, In : Astronomy and Astrophysics. 525, 12 p., A57.

Research output: Contribution to journalArticle

54 Citations (Scopus)

Generalised models for torsional spine and fan magnetic reconnection

Pontin, D. I., Al-Hachami, A. K. & Galsgaard, K., Sep 2011, In : Astronomy and Astrophysics. 533, p. - 11 p., A78.

Research output: Contribution to journalArticle

26 Citations (Scopus)

Heating of braided coronal loops

Wilmot-Smith, A. L., Pontin, D. I., Yeates, A. R. & Hornig, G., Dec 2011, In : Astronomy and Astrophysics. 536, p. - 9 p., A67.

Research output: Contribution to journalArticle

29 Citations (Scopus)

Steady state reconnection at a single 3D magnetic null point

Galsgaard, K. & Pontin, D. I., May 2011, In : Astronomy and Astrophysics. 529, p. - 9 p., A20.

Research output: Contribution to journalArticle

26 Citations (Scopus)
2010

Dynamics of braided coronal loops: II. Cascade to multiple small-scale reconnection events

Pontin, D. I., Wilmot-Smith, A. L., Hornig, G. & Galsgaard, K., 1 Dec 2010, In : Astronomy and Astrophysics. 525, 3, A57.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Dynamics of braided coronal loops: I. Onset of magnetic reconnection

Wilmot-Smith, A. L., Pontin, D. I. & Hornig, G., 2010, In : Astronomy and Astrophysics. 516, p. - 9 p., A5.

Research output: Contribution to journalArticle

55 Citations (Scopus)

Magnetic reconnection at 3D null points: effect of magnetic field asymmetry

Al-Hachami, A. & Pontin, D. I., 2010, In : Astronomy and Astrophysics. 512, A84.

Research output: Contribution to journalArticle

21 Citations (Scopus)
2009

Dynamics and waves near multiple magnetic null points in reconnection diffusion region

Deng, X. H., Zhou, M., Li, S. Y., Baumjohann, W., Andre, M., Cornilleau, N., Santolik, O., Pontin, D. I., Reme, H., Lucek, E., Fazakerley, A. N., Decreau, P., Daly, P., Nakamura, R., Tang, R. X., Hu, Y. H., Pang, Y., Buechner, J., Zhao, H., Vaivads, A. & 7 others, Pickett, J. S., Ng, C. S., Lin, X., Fu, S., Yuan, Z. G., Su, Z. W. & Wang, J. F., 2009, In : Journal of Geophysical Research: Space Physics. 114, A7, p. - 7 p., A07216.

Research output: Contribution to journalArticle

33 Citations (Scopus)

Lagrangian relaxation schemes for calculating force-free magnetic fields and their limitations

Pontin, D. I., Hornig, G., Wilmot-Smith, A. L. & Craig, I. J. D., 1 Aug 2009, In : Astrophysical Journal. 700, 2, p. 1449-1455 7 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Magnetic braiding and parallel electric fields

Wilmot-Smith, A. L., Hornig, G. & Pontin, D. I., 10 May 2009, In : Astrophysical Journal. 696, 2, p. 1339-1347 9 p.

Research output: Contribution to journalArticle

46 Citations (Scopus)

Magnetic braiding and quasi-separatrix layers

Wilmot-Smith, A. L., Hornig, G. & Pontin, D. I., 20 Oct 2009, In : Astrophysical Journal. 704, 2, p. 1288-1295 8 p.

Research output: Contribution to journalArticle

38 Citations (Scopus)

Three-dimensional null point reconnection regimes

Priest, E. R. & Pontin, D. I., Dec 2009, In : Physics of Plasmas. 16, 12, 15 p., 122101.

Research output: Contribution to journalArticle

90 Citations (Scopus)
2007
61 Citations (Scopus)

Current sheet formation and nonideal behavior at three-dimensional magnetic null points

Pontin, D. I., Bhattacharjee, A. & Galsgaard, K., 2007, In : Physics of Plasmas. 14, 5, p. 052106 1 p.

Research output: Contribution to journalArticle

File
73 Citations (Scopus)
185 Downloads (Pure)

Current sheets at three-dimensional magnetic nulls: effect of compressibility

Pontin, D. I., Bhattacharjee, A. & Galsgaard, K., 2007, In : Physics of Plasmas. 14, 5, p. 052109 1 p.

Research output: Contribution to journalArticle

File
23 Citations (Scopus)
183 Downloads (Pure)
2006

Dynamic three-dimensional reconnection in a separator geometry with two null points

Pontin, D. I. & Craig, I. J. D., 2006, In : Astrophysical Journal. 642, 1, p. 568-578 11 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)
2005

A fully magnetohydrodynamic simulation of three-dimensional non-null reconnection

Pontin, D. I., Galsgaard, K., Hornig, G. & Priest, E. R., Apr 2005, In : Physics of Plasmas. 12, 5, p. 052307 1 p.

Research output: Contribution to journalArticle

27 Citations (Scopus)

Current singularities at finitely compressible three-dimensional magnetic null points

Pontin, D. I. & Craig, I. J. D., 2005, In : Physics of Plasmas. 12, 7, 072112.

Research output: Contribution to journalArticle

File
31 Citations (Scopus)
153 Downloads (Pure)

Kinematic reconnection at a magnetic null point: fan-aligned current

Pontin, D. I., Hornig, G. & Priest, E. R., Feb 2005, In : Geophysical & Astrophysical Fluid Dynamics. 99, 1, p. 77-93 17 p.

Research output: Contribution to journalArticle

66 Citations (Scopus)
2004

Kinematic reconnection at a magnetic null point: spine-aligned current

Pontin, D. I., Hornig, G. & Priest, E. R., Oct 2004, In : Geophysical & Astrophysical Fluid Dynamics. 98, 5, p. 407-428 22 p.

Research output: Contribution to journalArticle

50 Citations (Scopus)