dorsal/arxiv
View SchemaSolar arcades as possible minimum dissipative relaxed states
| Authors | R. Bhattacharya, M. S. Janaki, B. Dasgupta, G. P. Zank |
|---|---|
| Categories | |
| ArXiv ID | physics/0602006 |
| URL | https://arxiv.org/abs/physics/0602006 |
Abstract
In our work, we have proposed the arcade structures as minimum dissipative relaxed states (including both the viscous and resistive channels) pertaining to a two-fluid description of the plasma. The obtained relaxed state is non force-free in nature and appropriate to an open system with external drives. The Euler-Lagrange equations are solved in Cartesian coordinates subject to the existing photospheric boundary conditions. The solutions are seen to support flow-containing arcade like magnetic field configurations with inherent dissipative properties that may play an important role in the coronal heating. An interesting feature observed is the generation of different types of arcades with the variation of a single parameter characterizing the relaxed state. Also, recent observations with the LASCO coronagraph on board the SOHO spacecraft suggest that the helmet streamers originating from the sun may have an internal triple-arcade structure. The two-fluid relaxed state obtained here is also seen to support such structures.
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"abstract": "In our work, we have proposed the arcade structures as minimum dissipative\nrelaxed states (including both the viscous and resistive channels) pertaining\nto a two-fluid description of the plasma. The obtained relaxed state is non\nforce-free in nature and appropriate to an open system with external drives.\nThe Euler-Lagrange equations are solved in Cartesian coordinates subject to the\nexisting photospheric boundary conditions. The solutions are seen to support\nflow-containing arcade like magnetic field configurations with inherent\ndissipative properties that may play an important role in the coronal heating.\nAn interesting feature observed is the generation of different types of arcades\nwith the variation of a single parameter characterizing the relaxed state.\nAlso, recent observations with the LASCO coronagraph on board the SOHO\nspacecraft suggest that the helmet streamers originating from the sun may have\nan internal triple-arcade structure. The two-fluid relaxed state obtained here\nis also seen to support such structures.",
"arxiv_id": "physics/0602006",
"authors": [
"R. Bhattacharya",
"M. S. Janaki",
"B. Dasgupta",
"G. P. Zank"
],
"categories": [
"physics.plasm-ph"
],
"title": "Solar arcades as possible minimum dissipative relaxed states",
"url": "https://arxiv.org/abs/physics/0602006"
},
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