Skip to main content Skip to navigation

Events in Physics

Show all calendar items

Stephanie Yardley (St Andrews): Simulating the coronal evolution of bipolar active regions using SDO/HMI LOS magnetograms

- Export as iCalendar
Location: PS128
Abstract: 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.
Tags: CFSA Seminar

Show all calendar items

Academic Leave Diary

Click here


Physics Days

Event listing

Research Group Events




Particle Physics



Condensed Matter Physics


Open Funder Deadlines

UKRI - Daphne Jackson Fellowship

Diamond Studentships 2024


UKRI Deadlines

Due to the implementation of a new UKRI funding system (TFS) there will be a fixed quarterly deadlines for some grants which would previously have been on open calls, this is to allow necessary system amendments and updates.

The first deadline after implementation will be 28th September 2023 and applies to those calls listed below:

EPSRC New Investigator Award

EPSRC Network Grant

EPSRC Post Doctoral Fellowship

EPSRC Open Fellowship

EPSRC Open Plus Fellowship

EPSRC Working with overseas scientists

EPSRC Standard research grant

EPSRC Discipline hopping in ICT

EPSRC Overseas travel grant