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          Institute: MPI für Gravitationsphysik     Collection: Astrophysical Relativity     Display Documents

ID: 318872.1, MPI für Gravitationsphysik / Astrophysical Relativity
Gravitational waves from coalescing massive black holes in young dense clusters
Authors:Amaro-Seoane, Pau
Place of Publication:Berlin u.a
Date of Publication (YYYY-MM-DD):2006
Title of Proceedings:Laser Interferometer Space Antenna: 6th International LISA Symposium
Start Page:250
End Page:256
Title of Series:AIP Conference Proceedings: Astronomy and Astrophysics
Volume (in Series):873
Name of Conference/Meeting:6th International LISA Symposium
Place of Conference/Meeting:Greenbelt, Maryland
(Start) Date of Conference/Meeting
End Date of Conference/Meeting 
Review Status:not specified
Audience:Not Specified
Abstract / Description:HST observations reveal that young massive star clusters form in gas-rich environments like the Antenn{\ae} galaxy which will merge in collisional processes to form larger structures. These clusters amalgamate and if some of these clusters harbour a massive black hole in their centres, they can become a strong source of gravitational waves when they coalesce. In order to understand the dynamical processes that are into play in such a scenario, one has to carefully study the evolution of the merger of two of such young massive star clusters and more specifically their respective massive black holes. This will be a promising source of gravitational waves for both, LISA and the proposed Big Bang Observer (BBO), whose first purpose is to search for an inflation-generated gravitational waves background in the frequency range of $10^{-1}-1$ Hz. We used high-resolution direct summation $N-$body simulations to study the orbital evolution of two colliding globular clusters with different initial conditions. Even if the final eccentricity is almost negligible when entering the bandwidth, it will suffice to provide us with detailed information about these astrophysical events.
External Publication Status:published
Document Type:Conference-Paper
Communicated by:Bernhard F. Schutz
Affiliations:MPI für Gravitationsphysik/Astrophysical Relativity
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