Astrophysicists of the Astronomisches Rechen-Institut (Zentrum für Astronomie) invite to the presentation of their new supercomputer and of first results on February 7, 2006, 3.00 p.m., seminar room, Mönchhofstr. 12-14, 69120 Heidelberg (with movie presentation)
New computer models of galaxies show a much faster merging of supermassive black holes in galaxies as previously thought. A combination of three favourable circumstances led to this result:
Upper left: 32 PCs constitute the compute cluster GRACE at the ARI.|
Upper right: every PC contains a GRAPE spezial compute board (identifiable for its large fan). GRAPE computers were developed by astronomers at the Univ. of Tokyo, Japan http://www.astrogrape.org
Lower left: every PC gets an additional compute board, developed at the University of Mannheim (MPRACE) with a new kind of reconfigurable processor chip.
Figures from upper left to lower right: snapshots of the new simulations with the GRACE computer. Green dots: central black holes and their evolution in the galaxy; Clearly visible ist he formation of a barlike structure, as it is observed in many galaxies; in the last picture, after some 100 million years, the two black holes came close enough together, that they will undergo a fast merger under emission of gravity waves. Through these results new predictions for present and future space projects to measure gravity waves can be made; this would further solidify Einstein's theory of relativity.
This is a collaborative research with the departments of astrophysics (Prof. David Merritt) and computer science (Hans-Peter Bischof) at Rochester Institute of Technology (RIT), State of New York, USA.
Please address any inquiries to:
Prof. Dr. Rainer Spurzem
Astronomisches Rechen-Institut (ARI)
Zentrum für Astronomie Universität Heidelberg (ZAH)
Mönchhofstrasse 12-14, 69120 Heidelberg
Tel. 06221 541830, Fax 541888
Dr. Michael Schwarz
Press Officer of the University of Heidelberg
phone: 06221/542310, fax: 54317