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:
Abstract: Virtually all X-rays observed in deep fields originate close to growing supermassive black holes. X-rays indeed provide a clean and efficient selection of both unobscured and obscured AGN (active galactic nuclei). Recent work with deeper observations and improved analysis methodology allowed us to extend constraints on highly obscured, Compton-thick growth, thought to occur e.g. as a phase in mergers. We put constraints on the mass locked into black holes over cosmic time, an important constraint for cosmological simulations and our understanding of the co-evolution with galaxies. Further study of the obscurer of AGN reveals a complex behaviour with luminosity and redshift, which rules out entire sets of obscurer models. A new paradigm is proposed, the radiation-lifted torus model, in which the obscurer is Eddington-rate dependent and radiation pressure from the accretion process creates and displaces torus clouds. We place observational limits on the behaviour of this mechanism.