Observations of the solar chromosphere with ALMA and comparison with theoretical models

Published October 15, 2018 | Version v1

Conference paper Open

1. Hvar Observatory, Faculty of Geodesy, University of Zagreb, 10000 Zagreb, Croatia
2. University of Applied Sciences and Arts Northwestern Switzerland, 5210 Windisch, Switzerland
3. Department of Physics and Astronomy, West Virginia University, Morgantown, WV 26506-6315, USA
4. Institute of Theoretical Astrophysics, University of Oslo, 0315 Oslo, Norway
5. Space Vehicles Directorate, AFRL, Kirtland AFB, NM 87117-5776, USA
6. ZAH, Landessternwarte Königstuhl, 69117 Heidelberg, Germany
7. Institute of Physics, University of Graz, 8010 Graz, Austria
8. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA
9. NAT - Nucleo de Astro

In this work we use solar observations with the ALMA radio telescope at the wavelength of 1.21 mm. The aim of the analysis

is to improve understanding of the solar chromosphere, a dynamic layer in the solar atmosphere between the photosphere and

corona. The study has an observational and a modeling part. In the observational part full-disc solar images are analyzed.

Based on a modied FAL atmospheric model, radiation models for various observed solar structures are developed. Finally, the

observational and modeling results are compared and discussed.

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