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  The Sun's Atmosphere

Shapiro, A., Peter, H., & Solanki, S. K. (2019). The Sun's Atmosphere. In O. Engvold, J.-C. Vial, & A. Skumanich (Eds.), The Sun as a Guide to Stellar Physics (pp. 59-85). Amsterdam: Elsevier.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-9C1B-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-B39F-F
Genre: Book Chapter

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 Creators:
Shapiro, Alexander1, 2, Author              
Peter, Hardi1, Author              
Solanki, Sami K.1, Author              
Affiliations:
1Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832289              
2ERC Starting Grant: Connecting Solar and Stellar Variabilities (SOLVe), Max Planck Institute for Solar System Research, Max Planck Society, ou_3164811              

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Free keywords: Solar atmosphere Solar magnetism Solar spectrum Solar–stellar connection
 Abstract: The solar atmosphere covers a broad range of temperatures and densities from the solar surface, via the chromosphere and transition region, and to the corona. Although one-dimensional (1D) models of the atmospheric structure have reached a high level of maturity, high–spatial resolution observations have cast some doubt on their validity. Thus, such observations have revealed a richness of highly variable spatial structure, often reaching down to the current resolution limit of 0.1 arcsec, or roughly 70 km on the Sun, in the photosphere and chromosphere. These observational advances have led to a new generation of models that describe the solar atmosphere self-consistently using 3D magnetohydrodynamic approximation simulations, including 3D radiative energy transport for those that cover the lower atmosphere, while simplistically taking into account the complex magnetic structure and energy dissipation processes in the upper atmosphere. These models have achieved considerable success in explaining the best observations, although there are still a number of open questions. Nonetheless, thanks to modern advances, the solar atmosphere now provides an excellent setting to test models of stellar atmospheres critically.

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Language(s): eng - English
 Dates: 2018-12-052019
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Project name : ERC-2016-STG - SOLVe
Grant ID : 715947
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)

Source 1

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Title: The Sun as a Guide to Stellar Physics
Source Genre: Book
 Creator(s):
Engvold, Oddbjørn , Editor
Vial, Jean-Claude, Editor
Skumanich, Andrew, Editor
Affiliations:
-
Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 59 - 85 Identifier: ISBN: 9780128143346