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:
The most intriguing question of modern extra-galactic astronomy is to locate and study the first galaxies in order to determine when they emerged from the dark ages, what are their physical properties and what role do they play in governing the transition of intergalactic hydrogen from a neutral state to one that is ionised. Measures of the optical depth of electron scattering by the Planck satellite indicates this `cosmic reionisation’ was a fast process occurring relative late over the redshift interval 12 < z < 6. Moreover recently high redshift galaxies discovered at fascinating distances z= 8, 11 and more, were interpreted in terms of ages and intense star formation histories. These galaxies are revealed mature by spectral synthesis identifying the Balmer discontinuity, the dust-attenuated far-UV distribution as well as very faint emission lines with ages of 500 million years, starting just after the Big-Bang, indicating a formation redshift of ~15 or more, earlier than expected by the current paradigm. Such early systems with significant stellar masses and star formation rates which decline with time are not easily reproduced by contemporary numerical simulations. After discussing the scientific context of this topic, I will describe the method used to identify distant galaxies, to measure the age of their stellar population, and to determine their physical properties. At the end of this talk, I will also discuss what we can expect from the future LSST on the search for and study of the first galaxies.