The 2nd COST workshop on
Polarization and Active Galactic Nuclei
International meeting to be held at the
Observatoire astronomique de Strasbourg, France
11-12 May 2015
supermassive black holes in active galactic nuclei (AGN) are the most
powerful, long-lasting sources in the universe. Emitting over ten
orders of magnitude in photon energy or more, the radiation of AGN
encodes information about a multitude of astrophysical processes:
accretion, thermal and non-thermal radiative transfer, acceleration of
outflows and jets, shock physics, special and general relativity.
Observationally, AGN appear as numerous types and polarization studies
have played a key role in establishing the idea of a unifying AGN
geometry. To a large extent, this unified scheme is still in place
although being challenged by more and more detailed observations of
individual objects and large AGN samples.
At the follow-up meeting of the conference Polarization and Active
Galactic Nuclei held in October 2012 in Brussels, Belgium, we want to
summarize past and present achievements in AGN research that include
AGN polarimetry and give prospects of future activities. It is a key
motivation of the meeting to reinforce the role of polarimetry in the
current discussion of AGN unification and super-unification schemes.
Time will be reserved to discuss and to concretely plan near-future
activities in our field.
The conference is interesting for observers and theoreticians working
on all wave band ranges covered by AGN. Topics to be covered at the
meeting include the following:
Polarimetry of AGN from the radio to gamma-rays
Tools for modeling and data analysis of AGN polarization
Polarization due to magnetic fields and dust in AGN
Polarization of AGN inflows, outflows and jets
Spectropolarimetry and polarization variability of AGN
From Sgr A* to the most luminous quasars: what can polarimetry do for AGN (super-)unification ?