Carlsson, M., Fletcher, L. , Allred, J., Heinzel, P., Kašparová, J., Kowalski, A., Mathioudakis, M., Reid, A. and Simoes, P. J. A. (2023) The F-CHROMA grid of 1D RADYN flare models. Astronomy and Astrophysics, 673, A150. (doi: 10.1051/0004-6361/202346087)
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Abstract
Context: Solar flares are the result of the sudden release of magnetic energy in the corona. Much of this energy goes into accelerating charged particles to high velocity. These particles travel along the magnetic field and the energy is dissipated when the density gets high enough, primarily in the solar chromosphere. Modelling this region is difficult because the radiation energy balance is dominated by strong, optically thick spectral lines. Aims: Our aim is to provide the community with realistic simulations of a flaring loop with an emphasis on the detailed treatment of the chromospheric energy balance. This will enable a detailed comparison of existing and upcoming observations with synthetic observables from the simulations, thereby elucidating the complex interactions in a flaring chromosphere. Methods: We used the 1D radiation hydrodynamics code RADYN to perform simulations of the effect of a beam of electrons injected at the apex of a solar coronal loop. A grid of models was produced, varying the total energy input, the steepness, and low-energy cutoff of the beam energy spectrum. Results: The full simulation results for a grid of models are made available online. Some general properties of the simulations are discussed.
| Item Type: | Articles |
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| Additional Information: | The research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP7/2007–2013) from grant no. 606862 (F-CHROMA) and from ERC Grant agreement no. 291058 (CHROMPHYS). This research was supported by the Research Council of Norway through its Centres of Excellence scheme, project number 262622, and through grants of computing time from the Programme for Supercomputing. L.F. acknowledges support by grants ST/P000533/1 and ST/T000422/1 from the UK’s Science and Technology Facilities Council. P.H. and J.K. acknowledge support by grant 19-09489S of the Czech Funding Agency. They have also been supported by the project RVO: 67985815. P.J.A.S. acknowledges support from CNPq (contract 307612/2019-8). |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Fletcher, Professor Lyndsay and Simoes, Dr Paulo |
| Authors: | Carlsson, M., Fletcher, L., Allred, J., Heinzel, P., Kašparová, J., Kowalski, A., Mathioudakis, M., Reid, A., and Simoes, P. J. A. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Astronomy and Astrophysics |
| Publisher: | EDP Sciences |
| ISSN: | 0004-6361 |
| ISSN (Online): | 1432-0746 |
| Published Online: | 24 May 2023 |
| Copyright Holders: | Copyright © 2023 The Authors |
| First Published: | First published in Astronomy and Astrophysics 673:A150 |
| Publisher Policy: | Reproduced under a Creative Commons license |
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