Gravitational Lensing and BH Shadows Workshop

In the wake of the detection of gravitational waves from black hole mergers and at the door step of an era of precision electromagnetic observations of the horizon scale for black hole candidates, in particular with the Event Horizon Telescope, the gravitation groups at Aveiro University, Gr@v, and at IST-Lisbon, Grit, will organize a two days workshop on Gravitational Lensing and Black Hole Shadows, held at the University of Aveiro (Portugal), on the 3rd and 4th of November 2016.

The workshop will consist on two mini-courses by invited lecturers combined with "hands-on" sessions, in which attendants will be introduced to the general relativistic orbit tracer of the Observatoire de Paris GYOTO and to a recent Python based code developed by ESA's Advanced Concepts Team. There will also be some contributed talks on the subject of lensing by compact objects and black hole shadows. The event will be integrated in the IDPASC doctoral programme and will be supported by the Calouste Gulbenkian Foundation through its research stimulus program as well as the Portuguese Science Foundation (FCT).


There is no registration fee but the workshop has a limited number of participants. Please register by sending an email to with the following information: name, position and affiliation. Ph.D. students should provide also the contact information (name, position and email) of a senior research willing to recommend them.  Information on transportation and accommodation can be found here.



Vitor Cardoso (IST-Lisbon)
Pedro Cunha (Aveiro and IST-Lisbon)
Jorge Delgado (Aveiro)
Efthimia Deligianni (ZARM-Bremen)
El-abbas Ahmed Endaisha (U. Coimbra)
Hugo Ferreira (INFN, Pavia)
Miguel Ferreira (IST-Lisbon)
Jai Grover (ESA)
Carlos Herdeiro (Aveiro)
Sophia Jahns (Universität Tübingen)
José Sande Lemos (IST-Lisbon)
Paulo Luz (IST-Lisbon and U. Minho)
Raimundo Martins (U. Coimbra)
Yosuke Mizuno (Frankfurt)
João Miguel Oliveira (U. Minho and U. Aveiro)
António Morais (U. Aveiro)
Volker Perlick (ZARM-Bremen)

Alexandre Pombo (Aveiro)
Eugen Radu (Aveiro)
João G. Rosa (Aveiro)
João Luis Rosa (IST-Lisbon)

Helgi Runarsson (Aveiro)
Jose Luis Blazquez Salcedo (Oldenburg U.)
Marco Sampaio (Aveiro)
Jake Shipley (Sheffield)

Ema Valente (Aveiro)
Frederic Vincent (Observatoire de Paris)
Alex Wittig (ESA)
Ziri Younsi (Frankfurt)



Invited mini-courses:

- Jai Grover & Alex Wittig (ESA): Pyhole and GPU powered raytracing in Python
- Frederic Vincent (Observatoire de Paris): GYOTO

Invited talks (to be updated):

- Pedro Cunha (Aveiro & IST-Lisbon): Chaotic lensing around boson stars and Kerr black holes with scalar hair
- Yosuke Mizuno (Frankfurt): Black Hole Cam project and development of new 3D AMR-GRMHD code BHAC
- Volker Perlick (ZARM-Bremen): An analytical formula for the boundary curve of the shadow of a black hole
- Jake Shipley (Sheffield): Binary black hole shadows are fractal
- Ziri Younsi (Frankfurt): Modelling the electromagnetic emissions from black holes: combining general-relativistic ray-tracing and radiative transfer with GRMHD simulations



Thursday, 3rd November

9H15 - Opening
9H30 - F. Vincent (I)
10H30 - Coffe Break
11H00 - J. Grover/A. Wittig (I)
11H30 - V. Perlick
- Y. Mizuno
12H30 - Lunch
14H30 -
Hands On (Frederic I)
16H00 - Coffee Break
16H30 - Hands On (Jai/Alex I)
18H00 - End of first day

20H00 - Workshop dinner


Friday, 4th November

9H00 - F. Vincent (II)
10H00 -
J. Grover/A. Wittig (II)
10H30 - Coffe Break
11H00 -
J. Shipley
11H30 - P. Cunha
12H00 -
Z. Yunsi
12H30 - Lunch
14H30 - Hands On (Frederic II)
16H00 - Coffee Break
16H30 - Hands On (Jai/Alex II)
18H00 - Closing




Vitor Cardoso (IST-Lisbon)
Pedro V. P. Cunha (U. Aveiro and IST-Lisbon)
Carlos Herdeiro (U. Aveiro,
José Sande Lemos (IST-Lisbon)
Eugen Radu (U. Aveiro)
Helgi Rúnarsson (U. Aveiro)



Poster (printable pdf):