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:
Magnetoseismology of the Sun: Waves, exact solutions, and dispersion relations
The study of waves inside the Sun and stars unveil the structure of stellar interior, which otherwise is less accessible to direct observations. This kind of study called 'asteroseismology' can, in principle, be used to infer the emergence of the subsurface solar magnetic field before they actually emerge on the surface. We look for the signatures of these emerging magnetic fields in the dispersion relation of acoustic waves, trapped near the solar surface. We first begin with an isothermal, stratified atmosphere, permeated by a uniform (and a non-uniform) horizontal magnetic field. After solving for waves and its dispersion relation in such an idealized case, we consider a more realistic polytropic atmosphere. We formulate a linear eigenvalue problem with a second-order differential operator in two different cases: (i) without a magnetic field, where we get symmetric rings of constant frequencies projected over the horizontal wavenumber plane, and (ii) with a horizontal magnetic field, which gives rise to asymmetry in the rings of constant frequencies. We suggest that these signatures may have the potential to reveal the presence and strength of subsurface magnetic field observationally. We also present exact analytical solutions to waves in terms of hypergeometric functions and confluent Heun function in separate cases.