Michela Mapelli (Heidelberg, Germany)
Tassos Fragos (Geneva, Switzerland)
The spin controversy
Davide Gerosa (Milan, Italy)
Chris Reynolds (College Park, USA)
X-ray polarization
Juri Poutanen (Turku, Finland)
Jakub Podgorný (Prague, Czechia)
Pikky Atri (Dwingeloo, The Netherlands)
Krzysztof Nalewajko (Warsaw, Poland)
Extended TeV emission
Liu Ruoyu (Nanjing, China)
Tsvi Piran (Jerusalem, Israel)
Collapsars
Ore Gottlieb (New-York, USA)
Chris Fryer (Los Alamos, USA)
Ultraluminous sources with black holes
Matt Middleton (Southampton, UK)
Chris Fragile (Charleston, USA)
To be confirmed
University of Turku,
Turku, Finland
Nicolaus Copernicus Astronomical Center, Warsaw, Poland
University of Turku,
Turku, Finland
Institute for Astronomy and Astrophysics, University of Tübingen, Tübingen, Germany
Astronomical Observatory Warsaw University, Warsaw, Poland
Max Planck Institute for Astrophysics,
Garching, Germany
University of Colorado, Boulder, Colorado, USA
Max Planck Institute for Nuclear Physics, Heidelberg, Germany
Faculty of Exact Sciences,
Tel Aviv, Israël
INAF -- Brera Astronomical Observatory, Merate, Italy
Tribhuvan University,
Kathmandu, Nepal
Yogesh Maharjan
University of Łodz,
Łodz, Poland
Gopal Bhatta
University of Zielona Góra,
Zielona Góra, Poland
Andrzej Zdziarski
Nicolaus Copernicus Astronomical Center, Warsaw, Poland
Astronomical Observatory Warsaw University, Warsaw, Poland
Greg Marcel
University of Turku,
Turku, Finland