Dey, S. orcid.org/0000-0002-3369-8471, Chatterjee, P. orcid.org/0000-0002-0181-2495, O. V. S. N., M. orcid.org/0000-0001-7809-8325 et al. (4 more authors) (2022) Polymeric jets throw light on the origin and nature of the forest of solar spicules. Nature Physics, 18 (5). pp. 595-600. ISSN 1745-2473
Abstract
Spicules are plasma jets that are observed in the dynamic interface region between the visible solar surface and the hot corona. At any given time, it is estimated that about 3 million spicules are present on the Sun. We find an intriguing parallel between the simulated spicular forest in a solar-like atmosphere and the numerous jets of polymeric fluids when both are subjected to harmonic forcing. In a radiative magnetohydrodynamic numerical simulation with sub-surface convection, solar global surface oscillations are excited similarly to those harmonic vibrations. The jets thus produced match remarkably well with the forests of spicules detected in observations of the Sun. Taken together, the numerical simulations of the Sun and the laboratory fluid dynamics experiments provide insights into the mechanism underlying the ubiquity of jets. The non-linear focusing of quasi-periodic waves in anisotropic media of magnetized plasma as well as polymeric fluids under gravity is sufficient to generate a forest of jets.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2022. This is an author produced version of a paper subsequently published in Nature Physics. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Computational astrophysics; Fluid dynamics; Laboratory astrophysics |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematical and Physical Sciences The University of Sheffield > Faculty of Engineering (Sheffield) > School of Electrical and Electronic Engineering |
Funding Information: | Funder Grant number SCIENCE AND TECHNOLOGY FACILITIES COUNCIL ST/M000826/1 EUROPEAN COMMISSION - HORIZON 2020 824135 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 13 Jan 2025 15:07 |
Last Modified: | 13 Jan 2025 15:48 |
Status: | Published |
Publisher: | Springer Science and Business Media LLC |
Refereed: | Yes |
Identification Number: | 10.1038/s41567-022-01522-1 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:221101 |