Ruprecht-Karls-Universität Heidelberg

DRAGON simulation: recent LIGO GW-detection probably origins in globular cluster

Two orbiting black holes just before they merge giving rise to a gravitational wave signal as the one recently detected by LIGO (Artist's conception from LIGO/Caltech/MIT/Sonoma State (Aurore Simonnet) )

Extensive simulations run by Prof. Rainer Spurzem (ZAH/ARI & Kavli Institute for Astronomy & Astrophysics at Peking University) support a new facet of globular clusters (GCs), i.e. they harbour a lot more black black holes than previously expected. Hitherto it was suggested that due to GC-internal dynamics black holes will be kicked out of these dense stellar systems. Instead, simulations following the paths of millions of stars over about 12 billion years have shown that significant numbers of black holes will be retained and the sort of BH-collisions recently detected for the third time by LIGO probably origin in such a cluster. Read the whole interview with Rainer Spurzem and collaborators about their latest findings. (GT, 26.06.17)


ZAH scientists involved in this study:

apl. Prof. Dr. Rainer Spurzem
Astronomisches Rechen-Institut (ARI)
Tel. +49 6221 54-1830

ZAH outreach officer and contact person:

Dr. Guido Thimm
Zentrum für Astronomie der Universität Heidelberg (ZAH)
Tel. +49 6221 54-1805

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