Rational

This workshop will focus on active galactic nuclei (AGN) and their study using polarimetry. The workshop will include around forty people, all experts in the field of AGNs and/or polarization.

The goals of the workshop are to:

  • present the latest discoveries on AGNs obtained using polarimetry;
  • discuss current simulation tools and community needs;
  • highlight the current opened questions on AGNs that polarimetry could help to solve;
  • explore the design of future polarimeters to achieve such discoveries.

The idea is to have a short and focused workshop with experts in the fields to drive the forthcoming years of research in extragalactic polarimetry. We also clearly need to constrain the requirements of future polarimetric instrumentation that we could propose to the astronomical community, especially knowing that the next generation of big telescopes and satellites are being designed right now (ELT second wave of instruments, HWO, PRIMA, balloon-borne experiments...). Right now, the future of polarimetry (2030+) is pretty bleak, with the exception of radio band polarimetry.

All attending people are welcomed to present their work and discoveries through oral presentations. It will be possible to bring posters to initiate discussions, but each workshop guest is guaranteed to have an oral presentation. Slots will be allocated for debates and the exchange of ideas in order to best understand the polarimetric needs of the AGN community, keeping in mind their applications to other astronomical sources.

Unlike usual conferences, there are no SOC nor invited presentations, since we are all very knowledgeable in the subject and each of us will have the opportunity to speak. Likewise, there will be no need to go into long introductions to the subject so that we concentrate on the essentials. For this reason, this workshop is truly dedicated to specialists in the field (theoreticians, simulators, observers and instrument designers). Because we want to spark discussion and debate, in the conference room or around a drink, it is an in-person only workshop (although talks will be registered and available to the community later on).

Program

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Monday, 14th
Time Session Talk Speaker
08h50 - 09h20   Arrival, badge, coffee and croissants      
09h20 - 09h30   Welcome words   Aims and schedule of the workshop   Frédéric Marin
09h30 - 09h55   Observations   From local to high redshift: polarimetry as a tool for studying AGN structure Marko Stalevski
09h55 - 10h20   Observations   Full-Stokes monitoring of AGN jets at mm and cm wavelengths Ioannis Myserlis
10h20 - 10h45   Observations   Results from the last multiwavelength polarization study of the archetypical blazar BL Lacertae Iván Agudo
10h45 - 11h10   Observations   A new perspective on radio-quiet AGN through millimeter polarimetry Elena Shablovinskaya
11h10 - 11h35   Observations   Using (sub)millimeter spectral line polarization to study magnetism and the AGN Boy Lankhaar
11h35 - 12h00   Observations   Infrared polarimetry of galaxies in the local and high-z universe Enrique Lopez Rodriguez
12h00 - 14h00   Lunch break      
14h00 - 14h25   Observations   Pushing the limits of optical polarimetric monitoring of blazars Yannis Liodakis
14h25 - 14h50   Observations   Optical and Radio Polarization Behavior of BL Lacertae during Dramatic Multi-Wavelength Activity in 2020-2023 Svetlana Jorstad
14h50 - 15h15   Observations   Probing AGN properties with optical (spectro)polarimetry in lines and continuum Eugene Malygin
15h15 - 15h40   Observations   Quasi-Peridoc Eruptions in GSN 069 as viewed in polarized light Beatriz Agís González
15h40 - 16h05   Coffee break      
16h05 - 16h30   Observations   Scattered synchrotron emission and a giant torus revealed in the polarized light of Centaurus A Frédéric Marin
16h30 - 16h55   Observations   Polarized subcomponents in the optical emission of blazars revealed with multimodal approach Dmitry Blinov
16h55 - 17h20   Observations   Spectropolarimetry of low and high redshift QSO Alessandro Capetti
17h20 - 17h45   Observations   Optical spectropolarimetry of a changing look AGN NGC 3516 Djordje Savic
17h45 - 18h10   Observations   Reducing archival imaging polarimetry from HST/FOC to prepare the future of UV polarimetry Thibault Barnouin
18h45   Social event   A drink in the city center    

 

Tuesday, 15th
Time Session Talk Speaker
09h00 - 09h30   Coffee and croissants      
9h30 - 9h55   Observations   The IXPE view of RQ AGN   Giorgio Matt
9h55 - 10h20   Observations   A Second Look at the X-ray Polarization of NGC 4151 with IXPE   Vittoria Elvezia Gianolli
10h25 - 10h45   Observations   Photo-polarimetric monitoring program TOP-MAPCAT in the era of multi-wavelength polarization  Jorge Otero-Santos
10h45 - 11h10   Community discussion   Next targets and scientific questions that observations could sove    
11h10 - 11h35   Simulations   Spectro-polarimetric AGN torus models with SKIRT  Bert Vander Meulen
11h35 - 12h00   Simulations   Fully relativistic Monte-Carlo radiative transfer code for spectra and polarization from disk-corona system   Sudeb Ranjan Datta
12h00 - 14h00   Lunch break      
14h00 - 14h25   Simulations   Warm coronas in accreting black holes: from dynamo processes up to radiated spectra (outsider's view)   Jiri Horak
14h25 - 14h50   Simulations   X-ray Polarization by Reflection from Accretion Discs   Michal Dovciak
14h50 - 15h15   Simulations   X-ray polarization models: reprocessing in distant components of radio-quiet AGNs   Jakub Podgorny
15h15 - 15h40   Simulations   The Origin of the X-Ray Polarization in the Circinus Galaxy   Atsushi Tanimoto
15h40 - 16h05   Coffee break      
16h05 - 16h30   Simulations   Effect of gravitational microlensing on the polarisation of multiply imaged quasars   Dominique Sluse
16h30 - 16h55   Simulations   Decoding Blazar Polarimetry   Lente Dreyer
16h55 - 17h20   Simulations   Polarization from Turbulence and Shocks in Blazars   Alan Marscher
17h20 - 17h45   Simulations   Probing Particle Acceleration in Blazars with Multi-Wavelength Polarimetr   Haocheng Zhang
17h45 - 18h10   Community discussion   What are the needs of the community in terms of simulations?  
19h30   Social event   Conference diner    

 

Wednesday, 16th
Time Session Talk Speaker
9h00 - 9h30   Coffee and croissants      
9h30 - 9h55   Current and future instruments   ALMA polarization observations   Rosita Paladino
9h55 - 10h20   Current and future instruments   Dust Polarimetry and the PRIMA Far-infrared Probe   Brandon Hensley
10h20 - 10h45   Current and future instruments   High resolution AGN observations with VLTI/MATISSE   Violeta Gámez Rosas
10h45 - 11h10   Current and future instruments   The Habitable Worlds Observatory   Chris Packham
11h10 - 11h35   Current and future instruments   IFU spectro-polarimetry with the FiberPol-6D   Sabyasachi Chattopadhyay
11h35 - 12h00   Current and future instruments   X-ray polarimetry: IXPE and future   Romana Mikusincova
12h00 - 14h00   Lunch break    
14h00 - 14h25   Current and future instruments   StokeSat - A Small Satellite for Soft X-ray Polarimetry   Yannis Liodakis
14h25 - 14h50   Current and future instruments   Gamma-Ray Polarimetry with Conversions to e+e- Pairs   Denis Bernard
14h50 - 15h15   Current and future instruments   Gamma-Ray Polarimetry for AGNs: Possibilities and Requirements   Merlin Kole
15h15 - 16h20   Community discussion   What should be the next polarimeters?  
16h20 - 16h30   Closing words   Acknowledgments and summary of the workshop   Frédéric Marin

Participants

Last update (September, 28)

Name Institute Country
Beatriz Agís González   Institute of Astrophysics, Foundation for Research and Technology-Hellas   Greece
Ivan Agudo   Instituto de Astrofisica de Andalucia-CSIC   Spain
Thibault Barnouin (LOC)   Astronomical observatory of Strasbourg   France
Denis Bernard   LLR, Ecole Polytechnique, CNRS/IN2P3 and IPP   France
Julie Bierdermann (LOC)   Astronomical observatory of Strasbourg   France
Alessandro Capetti   Istituto Nazionale di Astrofisica - Torino   Italy
Sabyasachi Chattopadhyay   South African Astronomical Observatory (SAAO)   South Africa
Michal Dovciak   Astronomical Institute of the CAS   Czech Republic
Lente Dreyer   Centre for Space Research, North-West University   South Africa
Violeta Gamez Rosas   Leiden University   Netherland
Vittoria Elvezia Gianolli   Université Grenoble Alpes and Università Roma Tre   France
Brandon S. Hensley   JPL/Caltech   USA
Jiri Horak   Astronomical Institute of the CAS   Czech Republic
Svetlana Jorstad   IAR, Boston University   USA
Merlin Kole   University of New Hampshire   USA
Boy Lankhaar   Chalmers University of Technology   Sweden
Yannis Liodakis   NASA Marshall Space Flight Center   USA
Enrique Lopez-Rodriguez   University of South Carolina   USA
Eugene Malygin   Special astrophysical observatory of RAS   Russia
Frédéric Marin (organizer)   Astronomical observatory of Strasbourg   France
Alan Marscher   Boston University   USA
Giorgio Matt   University Roma III   Italy
Max Millar-Blanchaer   University of California, Santa Barbara   USA
Romana Mikusincova   INAF-IAPS, Rome   Italy
Ioannis Myserlis   Institut de Radioastronomie Millimétrique (IRAM)   Granada, Spain
Thomas Oliveira (LOC)   Astronomical observatory of Strasbourg   France
Jorge Otero-Santos   Instituto de Astrofísica de Andalucía   Spain
Chris Packham   University of Texas at San Antonio   USA
Rosita Paladino   University of Bologna   Italy
Jakub Podgorny   Astronomical Institute of the Czech Academy of Sciences   Czech Republic
Sudeb Ranjan Datta   Astronomical Institute of the Czech Academy of Sciences   Czech Republic
Mattéo Sautron (LOC)   Astronomical observatory of Strasbourg   France
Elena Shablovinskaya   Universidad Diego Portales   Chile
Dominique Sluse   University of Liege   Belgium
Marzena Sniegowska   Nicolaus Copernicus Astronomical Center   Poland
Marko Stalevski   University of Belgrade   Serbia
Atsushi Tanimoto   Kagoshima University   Japan
Bert Vander Meulen   Astronomical Observatory, Ghent University.   Belgium
Haocheng Zhang   University of Maryland Baltimore County   USA

Your travel

Traveling to Strasbourg

By plane. Strasbourg Airport is located in Entzheim, 10 km from the city center. A shuttle train service runs between the airport and Strasbourg station four times an hour (9 minute journey). Taxis are also available all day. Strasbourg is also easily accessible from the Bâle-Mulhouse, Frankfort and Paris international airports (trains connections).

By train. There are a number of direct trains from Paris and the biggest cities in France and Europe every day. When you arrive at Strasbourg railway station (Gare Centrale) by train, the entire city is at your feet and the cathedral is never very far away.

By car. If you are driving to Strasbourg we recommend you go to the Relay-Tram (P+R) car parks located alongside the tram lines. After parking here, both you and your passengers, up to seven people, can easily get to the city center by tram using the same ticket you got when parkking your car.

 

Hotels

There are many hotels within a 15-minute walk of the conference venue. We recommend staying on the central island of Strasbourg, not far from the cathedral. From there you can easily walk or take the tram C, E or F to the astronomical observatory.

 

The conference venue

The conference will take place in the amphitheater of the astronomical observatory of Strasbourg (Observatoire Astronomique de Strasbourg, 11 Rue de l'Université, 67000 Strasbourg). The observatory is accessible from 9:00 a.m. to 6:00 p.m. There will be the possibility of storing suitcases on site.

Social events

Two social events, not obligatory, will be offered free of charge to those participating in this workshop.

On Monday 14th in the evening, each participant will receive two tokens to go have a drink at the “Les Berthom” bar in the city center. It is a French beer bar, warm but not too noisy where you can enjoy a good beer while discussing science or something else. Each token represents a drink (a beer or a soft drink). Other or excess drinks will be at your expense.

On Tuesday 15th in the evening, you will be invited to the main hall of the astronomical observatory for a cocktail dinner prepared by Strasbourg chefs (the cocktail includes vegetarian options, please let us know if you have any allergies). To accompany the food, an Alsatian winemaker will come and introduce you to his wines. Possibility of buying bottles of wine at a reduced price from the winegrower the same evening (be careful if you are traveling by plane).

Final information

 

The workshop is only upon invitation, but if you cannot attend, do not hesitate to let us know about experts in similar fields as yours. Our goal is to have lively discussions on AGN and polarimetry, and any keen eye is welcomed.

The workshop do not have conference fees and the social events are also free of charge.

Each participant is strongly encouraged to orally present their latest discoveries in the field of AGNs, polarimetry or any other associated field (modeling, instrumentation, etc.). The deadline to submit an abstract is Friday the 13th, September.

Submit an abstract

Call (observatory) : +33 368 852 410 Email : frederic.marin@astro.unistra.fr Location