In order to enable an iCal export link, your account needs to have an API key created. This key enables other applications to access data from within Indico even when you are neither using nor logged into the Indico system yourself with the link provided. Once created, you can manage your key at any time by going to 'My Profile' and looking under the tab entitled 'HTTP API'. Further information about HTTP API keys can be found in the Indico documentation.
Additionally to having an API key associated with your account, exporting private event information requires the usage of a persistent signature. This enables API URLs which do not expire after a few minutes so while the setting is active, anyone in possession of the link provided can access the information. Due to this, it is extremely important that you keep these links private and for your use only. If you think someone else may have acquired access to a link using this key in the future, you must immediately create a new key pair on the 'My Profile' page under the 'HTTP API' and update the iCalendar links afterwards.
Permanent link for public information only:
Permanent link for all public and protected information:
Helical magnetic fields are ubiquitous in the universe. They arise naturally from the dynamo process observed in the Sun, galaxies and accretion discs. During the generation of magnetic fields in dynamos helicity reduces the formation of the field field which is particularly problematic in the astrophysical environment. How its presence and fluxes influence the astrophysical dynamo is part of this work, where it is show that fluxes can save the dynamo. The gauge dependence of magnetic helicity makes its physical significance questionable. Considering three gauges it is shown that time averaged fluxes, which are physically meaningful, are gauge-invariant. The topological interpretation of magnetic helicity as linkage and knotting rises questions about how the field's stability is connected to its topology. The dominance of magnetic helicity is confirmed, but we have signs that higher order topological invariants might play a role too.