SFB Workshop Heidelberg 2018



International Workshop



 Star Clusters around the Milky Way and in the Local Group
(Observations, Dynamics, Modelling, Supercomputing)


  August 15-17, 2018; List of Participants (pdf)


organized through

SFB 881 The Milky Way System at Univ. of Heidelberg
(in conjunction with Volkswagen Trilateral Project and Sino-German Collaboration Scheme)

Link to Conference Pictures: Pic 1 Pic 2

Venue: International Science Forum Heidelberg (IWH)
Lecture Hall, Old Town City Center Heidelberg, Hauptstrasse 242 - 69117 Heidelberg

http://www.iwh.uni-hd.de/       Coffee Fee: EUR 25,-
Registration Fee: EUR 65,- (to be supported by SFB881)

(Coffee Breaks and Lunch Snack Wed/Thu included)

Responsible Organiser: Rainer Spurzem This email address is being protected from spambots. You need JavaScript enabled to view it. with


Scientific Organising Committee:

Manuel Arca Sedda (ARI), Peter Berczik (MAO/NAOC/ARI), Andreas Just (ARI),


Diederik Kruijssen (ARI), Nadine Neumayer (MPIA), Genevieve Parmentier (ARI),


Glenn van de Ven (ESO)




Scientific PROGRAM: 


(Speakers should allow for discussion time within their slot)        



Wednesday, August 15, 2018


9:00 – 9:30: Welcome and Registration


Session 1: Star Cluster Formation and Link to Galaxy


Chair:  Rainer Spurzem


9:30 – 10:00: Ray Carlberg (U Toronto): Getting Tidal Streams Right

10:00 – 10:30: Diederik Kruijssen (ARI/ZAH): Globular clusters revealing the formation and assembly history of the Milky Way

10:30 – 11:00: Sebastian Trujillo-Gomez (ARI/ZAH): A model for the environmental variation of the minimum cluster mass and its implications for globular cluster formation from Fornax to ultra-diffuse galaxies


11:00 - 11:30 Coffee/Tea Break


11:30 – 12:00: Bekdaulet Shukirgaliev (ARI/ZAH): Star clusters formed with centrally peaked SFE profile.

12:00 – 12:30: Thorsten Naab (MPA Garching): In-situ formation of nuclear star clusters in dwarf galaxies

12:30 – 13:00: Jeremy Webb (U Toronto): The Effects of Dark Matter Substructure on Globular Cluster Evolution


13:00 - 14:00 Lunch Break (Snacks provided)


Session 2: Globular and Nuclear Star Cluster Dynamics

Chair: Thorsten Naab


14:00 – 14:30: Alessandra Mastrobuono-Battisti (MPIA): On the merger origin of metallicity spreads in Galactic Globular clusters.

14:30 – 15:00: Marta Reina-Campos (ARI/ZAH): Dynamical cluster mass-loss in E-MOSAICS and its implications for current multiple stellar population models

15:00 – 15:30: Yohai Meiron (Eötvös U): Resonant relaxation in globular clusters


15:30 - 16:00 Coffee/Tea Break



16:00 – 16:30: Nadine Neumayer (MPIA): Stripping off galactic nuclei as the origin of the most massive globular clusters

16:30 – 17:00: Peter Berczik (ARI/ZAH, NAOC, MAO): Numerical modelling of Star Clusters and Black Holes in galaxies with Post Newtonian N-body codes.

17:00 – 17:15: Margaryta Sobolenko (MAO Kiev), O. Kompaniiets, P. Berczik: Numerical Modelling of the Dynamical Evolution of Supermassive Binary Black Hole at the Center of NGC 6240 Based on Chandra Observations

17:15 – 17:30: Ákos Szölgyén (Eötvös U): Anisotropic mass segregation in stellar systems

17:30 – 17:35: POSTER Presentation: Daniel Ivanov (MAO, Kiev), I. Bilinskyi, P. Berczik: "Study of the Dynamical Mass Loss by Young Star Clusters. Virial Stability Analysis."

17:35 – 17:40: POSTER Presentation: Bhusan Kayastha (NAOC Beijing): N-Body Models of Star Clusters with Binaries and Stellar Evolution


Thursday, August 16, 2018


Session 3: Black Holes and other special objects in Globular Clusters

Chair: Thijs M.B.N. Kouwenhoven


9:30 – 10:00: Michela Mapelli (INAF Padova): Evolution of compact object binaries in star clusters

10:00 – 10:30: Manuel Arca Sedda (ARI/ZAH): Spotting black hole subsystems and intermediate-mass black holes in globular clusters

10:30 – 11:00: Abbas Askar (Lund U): Black Hole Populations in Galactic Globular Clusters


11:00 - 11:30 Coffee/Tea Break


11:30 – 12:00: Jongsuk Hong (Peking U): Binary black hole mergers from globular clusters - the impacts of host cluster properties

12:00 – 12:30: Sambaran Banerjee (Argelander Inst. Bonn): Stellar-mass BHs in young massive and open clusters and their role in GW generation

12:30 – 13:00: Xiaoying Pang (Shanghai Inst. Techn.): The formation and evolution of WD-MS binaries (cataclysmic variable candidates) in DRAGON simulations


13:00 - 14:00 Lunch Break (Snacks provided)


Session 3: Black Holes and other special objects in Globular Clusters (cont’d)

Chair: Michela Mapelli


14:00 – 14:30: Maxwell Cai (Leiden Obs.): Exploring the diversity of exoplanets through their birth environments in star clusters

14:30 – 15:00: Thijs Kouwenhoven (Suzhou XJTLU): Evolution of planetary systems in star clusters: the Solar System (two top slides only)

15:00 – 15:30: Paolo Bianchini (McMaster U): Globular clusters in the era of large proper motion datasets


15:30 - 16:00 Coffee/Tea Break


Session 4: Star Clusters and Observations

Chair: Michela Mapelli


16:00 – 16:30: Zhongmu Li (Dali U): Application of ASPS model to the stellar populations of star clusters

16:30 – 17:00: Steffi Yen (LSW/ZAH): Deriving open cluster parameters using Gaia

17:00 – 17:30: Dana Kovaleva (INASAN Moscow): How far away one can penetrate with Gaia in star cluster studies?


Friday, August 17, 2018



Session 4: Star Clusters and Observations (cont’d)

Chair: Ray Carlberg


9:30 – 10:00: Eva Grebel (ARI/ZAH): Update on the Globular Cluster Contribution to the Galactic Halo Field Star Population

10:00 – 10:30: Eric Pellegrini (ITA/ZAH): WARPFIELD-EMP: Self Consistent Emission Predictions and ISM Dynamics


10:30 - 11:00 Coffee/Tea Break


Session 5: Computational Astrophysics, Dynamics, Methods

Chair: Ray Carlberg


11:00 – 11:30: Long Wang (Bonn U): Using PeTar code to obtain high efficient N-body modelling of GCs with large fraction of primordial binaries

11:30 – 12:00: Sverre Aarseth (Cambridge U): Post-Newtonian Energy Conservation in Algorithmic Chain Regularization

12:00 – 12:30: Rainer Spurzem (ARI/ZAH): Realistic direct N-body models of globular clusters and Post-Newtonian dynamics


12:30 – 12:40: Farewell, End of Workshop