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Paul M. Bellan

As seen in: Color Research & Application, Nature, The Astronomical Journal
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Articles by Paul M. Bellan

Generation of laboratory nanoflares from multiple braided plasma loops - Nature Astronomy

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By Yang Zhang, Seth Pree, Paul M. Bellan
| Nature Verified
Authors and Affiliations Applied Physics and Materials Science, California Institute of Technology, Pasadena, CA, USA Yang Zhang, Seth Pree & Paul M. Bellan Contributions Y.Z. designed the braided loop experiment from the suggestions and guidance of P.M.B. S.P. built the X-ray camera from the suggestions and guidance of P.M.B. Y.Z. and S.P. performed the experiment. The interpretation of the results was done jointly by all authors. Y.Z. drafted the manuscript.
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Neutral-charged-particle Collisions as the Mechanism for Accretion Disk Angular Momentum Transport

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By Yang Zhang, Paul M. Bellan
| The Astronomical Journal Verified
Protoplanetary disks (PPDs) are thin, weakly ionized, cold accretion disks existing during the early life of a star and typically have associated poloidal magnetic fields and bidirectional astrophysical jets. PPDs have inner radii of a few astronomical units, outer radii of 10–100 au, accretion rates of 10−9 to 10−7 M⊙ yr−1 (Gullbring et al. 1998), and poloidal magnetic fields >1 mG (Harrison et al. 2021).
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Physics of Plasmas: Vol DPP62, No 1

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By Paul M. Bellan, M. Millot, P. M. Celliers, Warren B. Mori
| AIP Publishing
Papers from the 62nd Annual Meeting of the APS Division of Plasma Physics M. K. Warrens, G. M. Gorman, S. J. Bradshaw and T. C. Killian more... more... L. E. Crandall, J. R. Rygg, D. K. Spaulding, M. F. Huff, M. C. Marshall, D. N. Polsin, R. Jeanloz, T. R. Boehly, M. Zaghoo, B. J. Henderson, S. Brygoo, P. M. Celliers, J. H. Eggert, D. E. Fratanduono, A. Lazicki, M. Millot and G. W. Collins more... Zan Nie, Yipeng Wu, Chaojie Zhang, Warren B. Mori, Chan Joshi, Wei Lu, Chih-Hao Pai, Jianfei Hua and Jyhpyng Wang more... more... more... W. A.
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MHD collimation mechanism in arched flux ropes characterized using volumetric, time-dependent B-vector measurements

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By Magnus A. Haw, Paul M. Bellan
| Color Research & Application Verified
Laboratory measurements of B(x,t) in a volume enclosing portions of two arched flux ropes show flux rope collimation driven by gradients in axial current density. These measurements verify the three predictions of a proposed MHD collimation mechanism: 1) axial magnetic forces exist in current channels with spatially varying minor radius, 2) these forces can drive counter-propagating axial flows, 3) this process collimates the flux rope.
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