MUSE observations of small-scale heating events
Abstract
Constraining the processes that drive coronal heating from observations is a difficult task due to the complexity of the solar atmosphere. As upcoming missions such as MUSE will provide coronal observations with unprecedented spatial and temporal resolution, numerical simulations are becoming increasingly realistic. Despite the availability of synthetic observations from numerical models, line-of-sight effects and the complexity of the magnetic topology in a realistic setup still complicate the prediction of signatures for specific heating processes. 3D MHD simulations have shown that a significant part of the Poynting flux injected into the solar atmosphere is carried by small-scale motions, such as vortices driven by rotational flows inside intergranular lanes. MHD waves excited by these vortices have been suggested to play an important role in the energy transfer between different atmospheric layers. Using synthetic spectroscopic data generated from a coronal loop model incorporating realistic driving by magnetoconvection, we study whether signatures of energy transport by vortices and eventual dissipation can be identified with future missions such as MUSE.
Citation
Breu , C A , De Moortel , I & Testa , P 2024 , ' MUSE observations of small-scale heating events ' , Monthly Notices of the Royal Astronomical Society , vol. 531 , no. 1 , pp. 1671–1684 . https://doi.org/10.1093/mnras/stae1126
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
ISSN
0035-8711Type
Journal article
Description
Funding: The research leading to these results has received funding from the UK Science and Technology Facilities Council (consolidated grant ST/W001195/1). The research leading to these results has received funding from a Royal Society Wolfson Fellowship (RSWF/FT/180005). IDM received funding from the Research Council of Norway through its Centres of Excellence scheme, project number 262622. PT was supported by contract 4105785828 (MUSE) to the Smithsonian Astrophysical Observatory and by NASA grant 80NSSC20K1272.Collections
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