Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Ian J.D. Craig"'
Autor:
Ian J.D. Craig, Craig Keith Armstrong
Publikováno v:
Solar Physics. 289:869-877
Solar flare energy release mechanisms often neglect the role played by viscous effects. Here we perform incompressible planar reconnection simulations, driven by the Orszag–Tang vortex, for both classical and Braginskii forms of the viscosity. We s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa5f81be4f90638abba52ce57254524b
https://doi.org/10.1007/s11207-013-0363-z
https://doi.org/10.1007/s11207-013-0363-z
Autor:
Craig Keith Armstrong, Ian J.D. Craig
Publikováno v:
Solar Physics. 283:463-471
Viscous effects are expected to significantly contribute to reconnective energy release mechanisms in solar flares. While simple scaling arguments based on head-on reconnection suggest that viscous dissipation may dominate resistive dissipation, it i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43b21b86e2fd6c3b82719e40c3a9f98c
https://doi.org/10.1007/s11207-013-0226-7
https://doi.org/10.1007/s11207-013-0226-7
Autor:
Yuri E. Litvinenko, Ian J.D. Craig
Publikováno v:
The Astrophysical Journal. 725:886-893
Global energy losses associated with transient magnetic reconnection in a viscous resistive plasma are examined. The Braginskii stress tensor is used to model the plasma viscosity for conditions typical of the solar corona. Analytic arguments are use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a55178963e682524764443ecff8083fb
https://doi.org/10.1088/0004-637x/725/1/886
https://doi.org/10.1088/0004-637x/725/1/886
Autor:
Ian J.D. Craig
Publikováno v:
Solar Physics. 266:293-299
This paper responds to points made by Low (Solar Phys. 2010. doi: ) with regard to the Parker problem as formulated in Craig and Sneyd (Solar Phys. 232, 41, 2005). We first point out that, since Low focuses mainly on interpreting approximate lineariz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed673697b8d308a9069072c6bade62fe
https://doi.org/10.1007/s11207-010-9627-z
https://doi.org/10.1007/s11207-010-9627-z
Autor:
Yuri E. Litvinenko, Ian J.D. Craig
Publikováno v:
Astronomy & Astrophysics. 501:755-760
Aims. We consider viscous and resistive energy dissipation in the flaring solar corona. Methods. We compute energy dissipation rates, associated with magnetic merging in three dimensions. We examine an exact 3D solution for steady magnetic merging in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f3eed16760945b1f5a2ed907757d06c
https://doi.org/10.1051/0004-6361/200911784
https://doi.org/10.1051/0004-6361/200911784
Autor:
Ian J.D. Craig
Publikováno v:
Astronomy & Astrophysics. 487:1155-1161
Context. Visco-resistive damping in line-tied magnetic X-points is examined. Aims. The goal is to determine whether fast, Alfvenic energy dissipation is possible for X-point disturbances damped by the plasma resistivity and non-isotropic viscosity. M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d3d7e45bc9cc38a7a0b657b914ea834
https://doi.org/10.1051/0004-6361:200809960
https://doi.org/10.1051/0004-6361:200809960
Autor:
Yuri E. Litvinenko, Ian J.D. Craig
Publikováno v:
Astronomy & Astrophysics. 484:847-850
Context. The role of the Hall term in magnetic reconnection at line-tied planar magnetic X -points is explored. Aims. The goal is to determine the reconnection scaling laws and to investigate how the reconnection rate depends on the size of the syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9538d632a6e5a8e75e61641b05775f74
https://doi.org/10.1051/0004-6361:200809569
https://doi.org/10.1051/0004-6361:200809569
Autor:
Frederic Effenberger, Ian J.D. Craig
Publikováno v:
Solar Physics
Starting from an exact, steady-state, force-free solution of the magnetohydrodynamic (MHD) equations, we investigate how resistive current layers are induced by perturbing line-tied three-dimensional magnetic equilibria. This is achieved by the super
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b38312e7f7b226fc15ef7ea93444f660
https://gfzpublic.gfz-potsdam.de/pubman/item/item_3049907
https://gfzpublic.gfz-potsdam.de/pubman/item/item_3049907
Autor:
Ian J.D. Craig, Yuri E. Litvinenko
Publikováno v:
The Astrophysical Journal. 667:1235-1242
The viscous dissipation of axial field disturbances in planar magnetic X-points is examined. It is emphasized that an accurate treatment requires a nonisotropic tensor viscosity whose components are governed by the local magnetic field. Numerical sol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15b69cb713e99abe1eadecc7b7c61e6a
https://doi.org/10.1086/521091
https://doi.org/10.1086/521091
Autor:
Ian J.D. Craig, Michael S. Wheatland
Publikováno v:
Solar Physics. 238:73-86
There is a variety of observational evidence for solar flare sympathy, i.e., the triggering of a flare in one active region by a flare in another region. Models for solar flare statistics, however, usually ignore sympathy by assuming that flares occu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d327dc2c6564dbf63b0677e688b92e7f
https://doi.org/10.1007/s11207-006-0206-2
https://doi.org/10.1007/s11207-006-0206-2