Observations and modelling of the hydrogen Lyman lines in solar flares

Brown, Stephen Alistair (2019) Observations and modelling of the hydrogen Lyman lines in solar flares. PhD thesis, University of Glasgow.

Abstract

The extent of dynamical processes in the lower atmosphere of the Sun during solar flares is not fully understood. While it is widely accepted that the majority of the associated flare energy is deposited in the Sun’s chromosphere, it is less clear how this energy is transported and how it influences the configuration of material flows. Current models of chromospheric evaporation and condensation assume an upwards expulsion of high-temperature plasma, with an accompanying downwards flow at cooler temperatures. In this thesis, the validity of these assumptions are tested using a combination of observations and modelling, with particular focus given to the Lyman lines of hydrogen.

• Item Type: Thesis (PhD)
• Qualification Level: Doctoral
• Keywords: Sun, solar, physics, flares, chromosphere, physics, astronomy, radiative, hydrodynamics.
• Subjects: Q Science > QB Astronomy; Q Science > QC Physics
• Colleges/Schools: College of Science and Engineering > School of Physics and Astronomy
• Funder's Name: Science & Technology Facilities Council (STFC)
• Supervisor's Name: Fletcher, Prof. Lyndsay
• Date of Award: 2019
• Depositing User: Mr Stephen Brown
• Unique ID: glathesis:2019-40974
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 29 Jan 2019 10:59
• Last Modified: 05 Mar 2020 22:36
• Thesis DOI: 10.5525/gla.thesis.40974
• URI: https://theses.gla.ac.uk/id/eprint/40974