Conferences & Workshops


October 2020

6. - 8. October 2020


RTG Online Autumn Workshop

Location: online Zoom-Conference (orig: University of Bielefeld)
Time: 06. - 08.10.2020

The Virtual Autumn Workshop of the Research Training Group Models of Gravity "Aspects of Gravity" will take place in cyberspace.
Registered participants will be able to follow the talks and engage in discussions online. There will be no conference fee and you are welcome to submit a title for a contributed talk about any aspect of gravity.
Contributed talks should last 15 minutes + 5 minutes discussion.
The deadline for submitting talks is September 20, 2020.

Further information can be found here.

May 2020

7. - 8. May 2020

15. Kosmologietag

Where: in Cyberspace / Bielefeld University

When: The Kosmologietag starts as usual on Thursday after lunch and ends Friday noon.

The workshop consists of mainly contributed talks, complemented by invited overview talks (tba).

For more information, please, have a look to the Kosmologietag-homepage.

The deadline for submitting talks is April 19, 2020.

D. Bödeker and D. Schwarz (Bielefeld)

March 2020

2. - 4. March 2020


RTG Spring Workshop

Location: ZARM, University of Bremen, Room: 1730
Time: 02. - 04.03.2020

Confirmed speakers:

  • Marek Abramowicz (Göteborg)
  • Torsten Asselmeyer-Maluga (Berlin)
  • Matthias Bartelmann (Heidelberg)
  • Leo Brunswick (Lyon)
  • Pedro Cunha (Potsdam)
  • Andreas Eckart (Köln)
  • Shoukufe Faraji (Bremen)
  • Victoria Grinberg (Tübingen)
  • Hildegard Meyer-Ortmanns (Bremen)
  • Anna Nelles (Erlangen)
  • Gonzalo Olmo (Valencia)
  • Axel Pelster (Kaiserslautern)
  • Marvin Pinkwart (Bremen)
  • Boris Vertmann (Oldenburg)

The program and the abstracts can be found here.


December 2019

5. - 6. December 2019


on leadership skills

When: 5. - 6.12.2019
Where: Bremen city center

Day 1: 09:30-16:00 (including 1h lunch)
Day 2: 09:30-13:00
Participation in both days is required.

This workshop is organised jointly with the CRC "Global Social Policy Dynamics".

Workshop Description "Leadership Skills for Women Team Leaders"

Have you ever struggled with a team member, who doesn’t seem motivated? Do you sometimes wonder how to lead without formal authority? Or do you feel “stuck in the middle” between your boss and the team you are leading as a postdoc?

Leading teams in the academic context is a challenging task. It can be inspiring and stressful at times. Some insights into communication and leadership skills can make a difference, for you personally and for your team.

This one and a half day training was designed to support those inprospective leadership positions with some insights and helpful leadership approaches to expand their skill set and gain suggestions for concrete situations at hand. Some of the topics that will be covered are:

  • Understanding structural aspects of leading from a “sandwich” position
  • Defining and clarifying one’s role and mandate as well as expectations
  • Leadership styles and Situational Leadership
  • Understanding social systems and team-development
  • Building a network and support system
  • Handling tricky situations from real life examples

The training will consist of short inputs, lots of practical exercises and experience sharing. We strongly recommend that participants come prepared with some real life situations and questions that will serve as a basis for practice and discussions.

Dr. Anette Hammerschmidt is a trainer and coach in the academic field as well as in the business world with over 20 years of experience. Her main expertise lies in leadership topics as well as organizational and team-development, intercultural cooperation and self-leadership.

September 2019

25. - 27. September 2019


RTG Autumn Workshop

Location: University of Oldenburg, Room: W16A-004
Time: 25. - 27.09.2019

Confirmed speakers:

  • Zahra Altaha Motahar (Oldenburg, Germany) - "Introduction to multi-messenger astronomy" - Abstract
  • Yves Brihaye (Mons, Belgium) - "Tachyon, Dp-branes and quasi-exact-solvability" - Abstract
  • Ludovic Ducobu (Mons, Belgium) - "Hairy Black Holes & Boson Stars: From shift-symmetry to spontaneous scalarization" - Abstract
  • Kai Flathmann (Oldenburg, Germany) - "Post-Newtonian limit of general scalar-torsion theories of gravity" - Abstract
  • Betti Hartmann (São Paulo, Brazil / Bilbao, Spain) - "Vortices/Strings with internal structure" - Abstract
  • Manuel Hohmann (Tartu, Estonia) - "Gauge-invariant approach to the parameterized post-Newtonian formalism and the post-Newtonian limit of teleparallel gravity" - Abstract
  • Sarah Kahlen (Oldenburg, Germany) - "How to relax the cosmological neutrino mass bound" - Abstract
  • Ute Kraus (Hildesheim, Germany)- "Visualization of Relativity" - Abstract
  • Bettina Langfeldt (Kassel, Germany) - Lecture series "Gender and Diversity in Physics": "Remaining gender disparities in the academic career of physicists – empirical findings and potential explanations" - Abstract
  • Monika Moscibrodzka (Nijmegen, the Netherlands) - "Seeing the unseeable: First results from the Event Horizon Telescope and the physical origin of the asymmetric ring" - Abstract
  • Hector Olivares Sanchez (Nijmegen, the Netherlands) - "Fitting models for the EHT2017 observations" - Abstract
  • Christian Pfeifer (Tartu, Estonia) - "Teleparallel Gravity: Formalism and Predictions" - Abstract
  • Ivo Sachs (München, Germany) - "On non-perturbative tree-level unitarity in gravitational scattering" - Abstract
  • Ahmad Sheykhi (Shiraz, Iran /Oldenburg, Germany) - "Modified Friedmann Equations from Tsallis Entropy" - Abstract
  • Dennis Stock (Bremen, Germany) - "The Hawking Energy in Cosmology" - Abstract
  • Matheus do Carmo Teodoro (Oldenburg, Germany) - "Tidal disruption clouds around boson stars" - Abstract
  • Michael Wondrak (Frankfurt, Germany) - "On Applying the Gauge/Gravity Duality to Physics far from Equilibrium" - Abstract

The program can be found here.

May 2019

16. - 17.. May 2019

14. Kosmologietag

Where: ZiF - Center for Interdisciplinary Research / Bielefeld University
When: The Kosmologietag starts as usual on Thursday after lunch and ends Friday noon. The obligatory dinner takes place on Thursday evening at "Brauhaus" in the city center.

The workshop consists of mainly contributed talks, complemented by invited overview talks (tba).

For more information, please, have a look to the Kosmologietag-homepage.

The deadline for submitting talks is May 7, 2019.

D. Schwarz and D. Bödeker (Bielefeld)

March 2019

3. - 8. March 2019


PhD School

Where: Resort Lüneburger Heide
When: 03. - 08.03.19., 9:00 - 18:00 h

The program can be found here.

Further information about the location can be found here
The adress of the Resort Lüneburger Heide is: Bruchweg 11, 27389 Fintel. 
How to get there.

Please note that there is a social evening on 3 March 2019 at 19:00 h.

February 2019

10. - 16. February 2019 

Quantum Structure of Spacetime
Workshop in 
Bratislava of the COST Action MP1405 "Quantum Structure of Spacetime QSPACE"


 Where: Comenius University Bratislava

 More information can be found here.


October 2018

29. - 31. October 2018


Wissenschaft auf der Internationalen Raumstation ISS

Science on the International Space Station ISS 

Where: Physikzentrum, Bad Honnef

When: 29.- 31.10.2018

Scientific organizers: M. Sperl (DLR Köln), R. Ewald (University Stuttgart), C. Lämmerzahl (University Bremen), A. Quadt (University Göttingen), and R. Hemmersbach (DLR Köln)

Please refer to this link for further information and here for a preliminary program or registration. 

15. October 2018


RTG PI Gender Workshop Bremen

15.10.2018, 11 - 16 hrs

Organizer: E. Hackmann

Further information will follow soon.

September 2018

27. - 30. September 2018


22. German Conference of Women in Physics

Where: Oldenburg

When: 27. - 30.09.2018

More information can be found here.

10 - 12 September 2018


RTG Autumn Workshop

Location: ZARM, University of Bremen
Time: 10. - 12.09.2018

Confirmed speakers:

  • Martina Gebbe (ZARM, Uni Bremen) - "Atom interferometry on ground and in space" - Abstract
  • Friedrich W. Hehl (University of Cologne) - "Premetric teleparallel theory of gravity and its local and linear constitutive law" - Abstract
  • Sven Herrmann (ZARM, Bremen) - "A test of the gravitational redshift with Galileo satellites in an eccentric orbit" - Abstract
  • Tra-Mi Ho (DLR Bremen) - "How to explore an asteroid with 10 kg: the MASCOT concept" - Abstract
  • Meike List (ZARM, Uni Bremen) - "Fundamental physics in space - The MICROSCOPE mission" - Abstract
  • Zelimir Marojewic (ZARM, Uni Bremen) - "Gravitationally bound Bose-Einstein condensates" - Defense
  • Christian Pfeifer (University of Tartu) - "The Universe as a medium - Observables from modified dispersion relations as traces of quantum gravity" - Abstract
  • Harald Pfeiffer (Albert-Einstein-Institute, Potsdam) - "Simulations of binary black holes and applications to gravitational wave astronomy" - Abstract 
  • Eugen Radu (University of Aveira) - "Spontaneous scalarisation of charged black holes" - Abstract
  • Petra Rudolf (University of Groningen) - "How to keep women (and men) in science" - Abstract
  • Steffen Schön (University of Hannover) - "Strengthening GNSS Navigation with Clocks" - Abstract
  • Kris Schroven (ZARM, Uni Bremen) - "The role of electric charge in the accretion process" - Abstract
  • Rainer Verch (University of Leipzig) - "Unruh effect and Tolman temperature" - Abstract
  • Vojtech Witzany (ZARM, Uni Bremen) - "A critical overview of the theory of accretion onto black holes" - Abstract
  • Gleb Zhilin (University of Hannover) - "A new construction of rational electromagnetic knots
    " - Abstract
  • Sven Zschocke (TU Dresden) - "Light propagation in the Solar System for high-precision astrometry on the sub-micro-arcsecond level" - Abstract

The preliminary program can be found here

JULY 2018

1. - 7. July 2018

15th Marcel Grossmann Meeting

Where: Rome

When: 1. - 7.07.2018

More information can be found here.

May 2018

03. - 04. May 2018

13. Kosmologietag

Where: ZiF - Center for Interdisciplinary Research / Bielefeld University

When: The Kosmologietag starts as usual on Thursday after lunch and ends Friday noon. The obligatory dinner takes place on Thursday evening at "Brauhaus" in the city center.

The workshop consists of mainly contributed talks, complemented by invited overview talks: 

  • Laura Covi (Univ. Göttingen) - Dark Matter: a Cosmo-Astro-Particle connection 
  • Mark Hindmarsh (Univ. of Sussex) - Brighton Gravitational waves from phase transitions in the early Universe

For more information, please, have a look to the Kosmologietag-homepage.

The deadline for submitting talks is April 25, 2018.

D. Schwarz and D. Bödeker (Bielefeld)

March 2018

19. - 23. March 2018 


DPG Spring Meeting


Where: Würzburg

When: 19. - 23.03.2018

More information can be found here.

8.-9. March 2018


The Reionization History of the Universe


Thursday 8.3.18, 9:00 - 
Friday 9.3.18, 15:00

ZiF - Center for Interdisciplinary Research
Bielefeld University, 
Room: "Long Table", 231 M

RTG members are kindly invited to join this workshop in Bielefeld. The plenary talks cover a broad range of topics related to reionization. There are still a few free slots for short presentations.

The number of participants is strongly limited. The deadline for talk submissions and registration is Monday evening (January 29).

Further information can be found here.

February 2018

19. - 20. February 2018


RTG Workshop Bremen

Jacobs University Bremen Campus Ring 1, 28759 Bremen

Monday, 19.02.2018, 9:30 - Tuesday, 20.02.2018, 17:00

Bus or a Tram: 87, 94 and 95 buses stop at campus, connecting Burg and Vegesack stations. Timetables can be found at: 
Train: The trains run every 30 minutes from Schönebeck Station to downtown Bremen and beyond. Timetables can be found at:

Confirmed Speaker:

The program can be found here.

January 2018

25. January 2018


Games with Power - How women in leading positions communicate sucessfully
Spiele mit der Macht - Wie Frauen in Führungspositionen erfolgreich kommunizieren


Workshop only for female professors and PostDocs. 

When: 25.01.2018  9:00 - 17:00 

Location: "Gästehaus" of the University of Oldenburg

Trainer: Marion Knaths

Registration deadline: 25.12.2017

More information can be found here


November 2017

23. - 25. November 2017


Diversity and gender aspects of communication in the academic context

Where: Haags Hotel Niedersachsenhof in Verden

Women and men are invited to come to this workshop in November. The topics will be:
1) Intercultural communication & genderlect
2) Communication & presentation in the academic context

Trainer: Philipp Gramlich from NaturalScience.Careers

If you want to register for the workshop please contact Zahra Motahar. The deadline is Friday the 3rd of Nov.
(We need to send the exact list of participants to the Hotel.)

21 November 2017


Geodäsie im Fallturm / Geodesy in the Drop Tower


Where:ZARM, University of Bremen 
When:21.11.17, from 14:00


Axel Nothnagel (Max Planck Institute for Radio Astronomy, Bonn)
"Very long baseline interferometry for geodetic applications"

Susanne Glaser (German Research Center for Geosciences (GFZ), Potsdam)
"Global terrestrial reference frame"


October 2017

11 - 13 October 2017


RTG Autumn Workshop

Location: Oldenburg, Room V02 0-003

Confirmed speakers: 

The program can be found here.

September 2017

28 September - 01 October 2017



21st German Conference of Women in Physics


Where: Ilmenau

Further Information can be found here

May 2017

18 -19 May 2017



12. Kosmologietag

Where: Center for Interdisciplinary Research, ZiF at Bielefeld University
When: Thursday after lunch till Friday noon
Registration fee: 50,00 €

The workshop consists of mainly contributed talks, complemented by invited overview talks. Submissions of a title for a contributed talk about any aspect of cosmology and gravity are welcome. Areas of cosmology which are expected to be covered include the CMB, HI abservations, large scale structure, dark matter, inflation, dark energy (and its alternatives) and baryo-/leptoggenesis.
Talks - with the exception of the overview talks - should last 15 minutes + 5 minutes discussion.

Further information can be found here.

March 2017

13. - 17. March 2017

DPG Spring Meeting


Where:Universty of Bremen, ZARM
When:13.03.2017 - 17.03.2017

DPG Frühjahrstagung (Spring Meeting) of the Matter and Cosmos Section (SMuK) with the divisions and working groups:

  • Environmental Physics
  • Short Time-scale Physics
  • Plasma Physics
  • Extraterrestrial Physics
  • Gravitation and Relativity
            together with the Astronomischen Gesellschaft e. V.
  • Theoretical and Mathematical Physics
  • Working Group Philosophy of Physics

For more information please visit the meeting's website here.

6 - 7 March 2017



GRK Workshop Hannover 

Confirmed speakers:

  • Fabian Schmidt (MPA Garching) - IR modifications of gravity in cosmology - Abstract 
  • Klaus Dolag (MPA Garching) - Challenges for Cosmological Simulations 
  • Enrico Pajer (Utrecht) - A simpler universe - Abstract
  • Lavinia Heisenberg (ETH Zürich) - Fundamental Fields of Gravity - Abstract
  • Mihalis Dafermos (Cambridge University) - Abstract
  • Torsten Asselmeyer-Maluga (DLR Berlin) - Exotic (Smooth) Black Holes: Exotic Smoothness and Black Holes - Abstract
  • Neven Caplar (ETH Zürich) - Quantitative Evaluation of Gender Bias in Astronomical Publications from Citation Counts - Abstract
  • Golam Shaifullah (University of Bielefeld) - Gravitational Quadrupole Emission in an MSP binary - Abstract
  • Kamal Hajian (IPM, Tehran) - Dilaton moduli as redundant parameters - Abstract
  • Jose Blazquez Salcedo (University of Oldenburg) - Quasi-normal modes of black holes in Einstein-Gauss-Bonnet-dilaton theory - Abstract

The program can be found here.

January 2017

17 January 2017



Astronomie am Fallturm


Where: ZARM, University of Bremen

Where:ZARM, University of Bremen 
Speaker: Dr. Tobias Illenseer, Universität Kiel
Title:Der Einfluss von Selbstgravitation auf das Wachstum supermassereicher Schwarzer Löcher
Speaker:Dr.-Ing. Silvia Scheithauer, Max-Planck-Institut für Astronomie (MPIA), Heidelberg
Title:Gravity CIAO - Instrumentierung am ESO Paranal Observatorium
Abstract:Die ESO (European Southern Observatory) betreibt mehrere astronomische Observatorien in Chile, unter anderem das Very Large Telescope Interferometer (VLTI) auf dem Cerro Paranal. Die 14 ESO Mitgliedsstaaten - unter anderem Deutschland - sind für den Bau der astronomischen Instrumente zuständig.
Seit 2015 wird dort das GRAVITY Instrument in Betrieb genommen: GRAVITY ist ein Nah-Infrarot-Instrument der zweiten Generation für das VLTI, welches das Licht der vier 8,2m-Teleskope miteinander kombiniert, um eine viel höhere Auflösung zu erreichen, als es mit einem einzigen Teleskop möglich wäre. Im Zentrum nahezu jeder größeren Galaxie finden wir supermassereiche Schwarze Löcher mit Massen von bis zu einigen 1010 Sonnenmassen. Wir gehen heutzutage davon aus, dass diese Schwarzen Löcher wie auch die sie umgebenden Galaxien eine kosmologische Entwicklung durchlaufen. Das bedeutet, dass große, massereiche Strukturen nicht einfach plötzlich nach dem Urknall vorhanden sind, sondern im frühen Universum entstehen und dann durch das Ansammeln von Materie (Akkretion) wachsen. Im Falle der supermassereichen Schwarzen Löcher ist dieser Akkretionsprozess direkt beobachtbar und steht im engen Zusammenhang mit dem Phänomen der Quasare und aktiven Galaxien. Der Vortrag wird einen allgemeinen Einblick in das Gebiet der Akkretionsphysik sowie der theoretischen Behandlung und numerischen Simulation sogenannter Akkretionsscheiben geben. Im Fokus stehen dabei Systeme, bei denen die Masse des zentralen Schwarzen Lochs deutlich geringer ist als die der sie umgebenden Materie. Es wird diskutiert inwieweit sich diese Systeme von den klassischen, nicht-selbstgravitierenden Modellen für Akkretionsscheiben unterscheiden. Dabei wird insbesondere die Frage erörtert, ob Modelle für selbstgravitierende Akkretionsscheiben das beobachtete Wachstumsverhalten von  upermassereichen Schwarzen Löchern erklären können.

Program and further information


October 2016

04 - 07 October 2016

RTG Models of Gravity Renewal Conference  at the University of Oldenburg

Black Holes, Neutron Stars and the structure of space-time  

Location of the conference

Speakers and abstracts

Conference Program

Hotels and directions


Lunch suggestions


For further information please contact Prof. Jutta Kunz

email: jutta.kunz(at)

September 2016

August 2016

July 2016

June 2016

May 2016

April 2016

28 - 29 April 2016

11. Kosmologietag 

Where:University of Bielefeld, main building - room V2-210/216
12:30 hrsWelcome Coffee & Registration for Kosmologietag
13:10 hrsMickael Rigault
"Accurate Measurement of the Hubble Constant with Type la Supernovae"
13:30 hrsKaren Schulze-Koops
"General Relativistic Ray Optics in a Nonmagnetized, Pressureless two-fluid Plasma"
13:50 hrsGiorgia Pollina
"Cosmology with Cosmic Voids"
14:10 hrs Benjamin Javanmardi
"Near Field Cosmology with Small Telescopes: Finding Dwarf Satellite Galaxies outside the Local Group" 
14:30 hrsCoffee Break
15:00 hrsVanessa Böhm 
"A Bias to CMB Lensing Measurements from the Bispectrum of large-scale Structure"
15:20 hrsSteffen Hagstotz
"Hunting Neutrinos and Modified Gravity with Clusters of Galaxies"
15:40 hrsTommi Tenkanen
"Observational Properties of Weakly Coupled Dark Matter"
16:00 hrsCora Uhlemann
"Large-Deviation Statistics on the Cosmic Density Field"
16:20 hrsCoffee Break
16:50 hrsChristian Fidler
"Relativistic Interpretations of N-Body Simulations"
17:10 hrsStefan Oslowski
"Gravitational-Wave Cosmology across 29 Decades in Frequency"
17:30-18:30 hrsGuy Moore
"Axion Mass - Dark Matter Abundance Relation"
20:00 hrsDinner at Brauhaus Johann Albrecht
09:00 hrsChris Byrnes 
"Inflation and the Cosmic Microwave Background Anomalies"
09:20 hrsJonathan Frazer
"Manyfield Inflation"
09:40 hrsMafalda Dias
"Inflating in a Random Landscape"
10:00 hrsCoffee Break
10:30 hrsJuraj Klaric
"Leptogenesis in GeV Seesaw Models with Large Mixing Angles"
10:50 hrsMarco Drewes
"What Can the CMB Tell about Cosmic Reheating?"
11:10 hrsGaoyuan Wang
"Vacuum Selection on Axionic Landscape"
11:30 hrsCoffee Break 
12:00-13:00 hrsChihway Chang 
"Exploring the Dark - Weak Lensing with the Dark Energy Survey and Beyond" 
13:00 hrsEnd of Kosmologietag


Official website

27 - 28 April 2016

Spring Workshop 

Wednesday, 27.04.2016
10:00 hrsWelcome and Coffee
10:30-12:30 hrsProf. Dr. Gerhard Schäfer, Jena
"Extraction and Estimation of the Parameters that Characterize"
12:30-13:00 hrsLunch
13:00-14:30 hrsDr. Harald Skarke, TU Vienna & Bielefeld
"Cosmic Acceleration as an Optical Illusion" 
14:30-15:00 hrsCoffee
15:00-16:00 hrsStudent Seminar
Thursday, 28.04.2016
09:30 hrsCoffee
10:00-10:20 hrsOmar Contigiani
"Cosmological Alignment of Radio Sources"
10:20-10:40 hrsIsabel Oldengott
"Models of Reionization and Dark Matter Decay"
10:40-11:00 hrsCoffe break 
11:00-12:00 hrsLaura Spitler, MPIfa Bonn
"An Overview of Fast Radio Bursts"
12:00-13:00 hrsLunch break
Then we continue with Kosmologietag, starting 13:00 with registration and welcome coffe. 

March 2016

14 - 15 March 2016

Nordic String Theory Meeting 2016

Where: Jacobs University Bremen, ICC Conference Room

What: several gravity-related talks including a pedagogical introduction to Newtown-Cartan theory

Official website

February 2016

January 2016


December 2015

November 2015

9 - 11 November 2015

Models of Gravity Workshop

Where: University of Bremen, ZARM

Program and information

October 2015

September 2015

August 2015

July 2015

June 2015

9 June 2015

Astronomie am Fallturm Workshop

Wo:ZARM, Universität Bremen
14:00 hrsBegrüßung, Prof. Dr. Claus Lämmerzahl, Universität Bremen, ZARM
14:15-15:00 hrsDr. Annelisa Bonafede, Hamburger Sternwarte"Radio Waves from the Universe: Clusters of Galaxies at Meter Wavelength"
15:00-15:30 hrsDiskussionsrunde
15:30-15:45 hrsPause
15:45-16:30 hrsProf. Dr. Robi Banerjee, Hamburger Sternwarte"Magnetfeldlinien im interstellaren Medium und ihre Bedeutung für die Sternenentstehung"
16:30-17:00 hrsDiskussionsrunde

May 2015

7 - 8 May 2015

10. Kosmologietag

Where:  University of Bielefeld

Programme and information

April 2015

March 2015

2 - 5 March 2015

Networking Workshop of the RTGs Models of Gravity (RTG 1620), Quantum and Gravitational Fields (RTG 1523)

Where: ZARM, University of Bremen

Program and information


February 2015

January 2015

12 January 2015

Astronomie am Fallturm

Where: ZARM, University of Bremen

Programme and information