The Silk Road Project Team is dedicated to computational studies of the evolution of planetary systems, star clusters, galaxies and galactic nuclei, black holes and gravitational wave emission. Our two main project nodes are Beijing, China (NAOC and KIAA) and Heidelberg, Germany (ZAH-ARI); we collaborate closely with institutions and colleagues from Kiev (Ukraine) and Almaty (Kazakhstan) and several other countries (e.g. Chile, Italy, UK, Pakistan, Austria,...). We are dedicated to teach and promote the use of new supercomputing facilities in China and abroad.


Our project is a bridge between China and Germany, with links to Asia, Europe, Americas ... 
  ...through this bridge we exchange students, knowledge, scientists... 
       ...work together for new technologies, and also for mutual cultural respect and understanding...


Our Main Research Projects are:

  • Binary Supermassive Black Holes and Gravitational Waves in Quiet and Active Galactic Nuclei 
 Burrau's Three Body Problem (solved with S. Mikkola's Chain Program)  Binary Active Galactic Nucleus (Komossa et al.)   Binary Black Hole and Gravitational Wave European Gravitational Wave Observatory Globular Cluster M15 by Hubble Space Telescope
  • Dynamical Evolution of Stars and Gas in Galactic Nuclei and Dense Star Clusters  
  • How are planetary systems forming and evolving (in star clusters)?  
  • How can we design supercomputers which are faster and consume less energy? 
    Tesla NVIDIA C1060 GPU accelerator used in our laohu supercomputerM. Giersz, R. Spurzem, S. Aarseth during IAU Symposium in Capri, ItalyNAOC/Silk Road Project Supercomputer laohu


  • Education and Workshops in Computational and Theoretical Astrophysics, Parallel Programming and Accelerated Computing


Have a look at our Publications and Collaborations                                

(See from where our pages have been looked at... Due to a crash of this service the data have been restarted Oct. 30, 2015)

Next Teeminars

Time Plan Sep - Dec 2016


  •     Oct. 28: no tea seminar (EANAM7)
  •     Nov. 4: James Wicker (tbc)
  •     Nov. 11: Abbas Askar: Monte Carlo Models (tbc)
  •     Nov. 18: Li Shuo: Binary Black Holes in Merging Galaxies
  •     Nov. 25/Dec. 2: no tea seminar (China/South Africa workshop)
  •     Dec. 9: Matthias Kühtreiber: Galaxy Evolution Models (tbc)
  •     Dec. 11: Shu Qi: Comets and Planets in Star Clusters / Bai Jing:tbc
  •     Dec. 18: Jongsuk Hong: Multiple Populations in star clusters (tbc)
  •     Dec. 30: Bhusan Kayastha: (tbc)
tbc = date and/or title to be confirmed



Past Seminars in this period:


  • Sep. 16 Discussion Meeting with Guests
    1.) Thijs Kouwenhoven, Xian Jiaotong/Liverpool Univ. at Suzhou:
    Disk fragmentation and brown dwarfs in the Galactic field
     2.) Xiaoying Pang, Shanghai Inst. of Technology, on open clusters
     3.) Yohai Meiron, Eoetvoes Univ. Budapest, Hungary, on stellar disks in AGN
  • Sep. 23 at Room 410, Morningside Center of Mathematics near AMSS/CAS (location see link), 4:00 p.m.: Yohai Meiron, Eötvös University (Budapest, Hungary)Triple companion in gravitational wave signals (Abstract) (notice: postponed: Fabian Klein on Initial Models for AGN Disks using pluto)




New Chinese Supercomputer Nr. 1

The current list of 500 fastest supercomputers in the world shows for the first time two Chinese supercomputers on the two top spots - number 2 is the already well known Tianhe-2 Supercomputer using Intel processors and accelerator. But the new number 1 system is the Taihu Supercomputer, which solely uses Chinese processor technology, reaches 125 Pflop/s with more than ten million cores, and puts a considerable distance in performance to the still fastest US supercomputer. See this link for the news on Taihu, and this link on the top 500 list.


7th KCK Workshop

The 7th Korea-China-Kazakhstan Workshop (organized by Hyung Mok Lee, Rainer Spurzem, Chingis Omarov) took place at NAOC Dec. 14-16. For conference picture (low res) (high res), links to talks, program see http://silkroad.bao.ac.cn/web/index.php/conferences/7th-korean-chinese-meeting (Pictures Riko Schadow)


Whisky Bottle for Million Bodies awarded to Long Wang

 SIlk Road Project Team Member Long Wang (last year Ph.D. student at KIAA/PKU) has been awarded a bottle of whisky by Douglas Heggie during the MODEST-15S Conference in Kobe, Dec. 7-11. In 2010 Douglas Heggie announced the award of a 50 EUR bottle of whisky at the
 Lorentz Center Workshop, see p. 7 of
  http://www.lorentzcenter.nl/lc/web/2010/400/presentations/Heggie.pdf to encourage more and better simulations of globular clusters.

Link to picture (by Steven Rieder). ______________________________________________________________

Chinese Supercomputer defends top spot 6th time

For the sixth consecutive time, Tianhe-2, a supercomputer developed by China’s National University of Defense Technology and running at the Guangzhou Supercomputing Center has defended its position as the world’s fastest supercomputer, according TOP500 list of the world’s most powerful supercomputers released earlier this month. It has 16000 nodes with a total of 48000 Intel Phi accelerator boards.

Horst Simon, deputy director of the Lawrence Berkeley National Laboratory in Berkeley, California, who had visited NAOC once in 2012, California, said in an interview with China Daily why Tianhe-2 keeps holding the top spot: “It is an exceptional system that is ahead of its competition and is mainly powered by Chinese technology,” He noted that Lenovo, Sugon and Inspur are the Chinese companies provide the technology. (See the news in China Daily)

It should be noted though that the processor technology used in Tianhe-2 for both the CPU and the accelerators is from Intel, which is a US company. (Rainer Spurzem)


Special Morningside/Silk Road Colloquium by Prof. Fukun Liu (Nov. 13)

Morningside Seminar in General Relativity and Astrophysics, jointly organized by Morningside Center and Silk Road Project at NAOC, titled

The discovery of supermassive black hole binaries in normal galaxies (Speaker: Prof. Fukun Liu, DoA/KIAA, PKU),

took place on Nov. 13, 2015, 3pm at NAOC. Download poster here