Harry Greatorex - Student Profile
Harry Greatorex (He/Him)
Current research project
Multi-Wavelength Observations of Solar Flares
My research involves the use of a broad range of space-based solar telescopes, observing in the UV and X-ray wavelengths, in order to develop our understanding of the emissions generated during solar flares. The Lyman-alpha emission line is of particular interest; it is the result of electron transitions from the n=2 to n=1 orbital and has a wavelength of 1216 Å in Hydrogen. This line has been found to radiate away significant fractions of the injected energy in solar flares, but has not yet been extensively studied compared to, for example, Hard X-rays.
My research aims to use data from missions such as RHESSI, GOES, and SDO to better understand the nature of Lyman-alpha emission in solar flares, how it correlates to other flare emissions, and its effect on our atmosphere on Earth. Excitingly, with the launch of Solar Orbiter, new high-resolution data could become available to this investigation within the research timeline.
Before my PhD, I completed a 4-year integrated masters at Queen’s University Belfast. For my final year project, I studied the response of the solar chromosphere to solar flare heating using RADYN generated models as a part of the FCHROMA database. This offers me a unique opportunity to potentially integrate computational flare modelling into my PhD research.
EUV Flare Diagnostics