Events in Physics
Monday, October 23, 2017
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Stephanie Yardley (St Andrews): Simulating the coronal evolution of bipolar active regions using SDO/HMI LOS magnetogramsPS128Abstract: To gain a better understanding of the formation and evolution of the pre-eruptive structure of CMEs requires the direct measurement of the coronal magnetic field, which is currently very difficult. An alternative approach, such as the simulation of the photospheric magnetic field must be used to infer the coronal evolution prior to eruption.
The evolution of the coronal magnetic field of a small sub-set of bipolar active regions is simulated by applying the magnetofrictonal relaxation technique of Mackay et al. (2011). A sequence of photospheric line-of-sight magnetograms produced by SDO/HMI are used to drive the simulation and continuously evolve the coronal magnetic field of the active regions through a series of non-linear force-free equilibria. The simulation is started during the first stages of active region emergence so that the full evolution from emergence to decay can be simulated. A comparison of the simulation results with SDO/AIA observations show that many aspects of the observed coronal evolution of the active regions can be reproduced, including the majority of eruptions associated with the regions.
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EPSRC is holding a showcase event on Wednesday 21 February 2018 at the Royal Society, London to promote the importance of EPSRC investments, in the context of UK prosperity. Addressing industry, government departments and researchers, the event will feature a research exhibition and panel discussions and debate. We are looking for researchers to be part of the exhibition to showcase their EPSRC-funded projects. There will be around ten static 鈥榯able-top鈥� exhibits, with an additional three to five roaming 鈥榖uskers鈥� that will circulate throughout the event. The event aims to engage a range of audiences with the social, cultural and economic impact of EPSRC investments. An exhibition will be the visual backdrop for the event, providing a snap shot of our broad portfolio. The exhibition will be segmented into four areas, displaying projects aligned to the EPSRC Prosperity Outcomes |