Reisswig, C. and Bishop, N. T. and Pollney, D. and Szilágyi, B. (2009) Unambiguous Determination of Gravitational Waveforms from Binary Black Hole Mergers. Physical Review Letters, 103 (22). p. 221101. ISSN 0031-9007 http://resolver.caltech.edu/CaltechAUTHORS:20091221-112844960
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Gravitational radiation is properly defined only at future null infinity (J^+), but in practice it is estimated from data calculated at a finite radius. We have used characteristic extraction to calculate gravitational radiation at J^+ for the inspiral and merger of two equal-mass nonspinning black holes. Thus we have determined the first unambiguous merger waveforms for this problem. The implementation is general purpose and can be applied to calculate the gravitational radiation, at J^+, given data at a finite radius calculated in another computation.
|Additional Information:||© 2009 American Physical Society. Received 15 July 2009; published 24 November 2009. The authors thank Stanislav Babak, Luciano Rezzolla, and Jeffrey Winicour for their helpful input. C. R., D. P., and B. S. thank the University of South Africa, and N. T. B. thanks Max-Planck-Institut fu¨ r Gravitationsphysik, for hospitality. This work was supported by National Research Foundation, South Africa; Budesministerium fu¨ r Bildung und Forschung, Germany; and DFG grant SFB/Transregio 7 ‘‘Gravitational Wave Astronomy.’’ D. P. was supported by a grant from the VESF. B. S. was supported by grants from the Sherman Fairchild Foundation, by NSF Grants No. DMS-0553302, No. PHY-0601459, No. PHY-0652995, and by NASA Grant No. NNX09AF97G. Computations were performed at the AEI, at LRZ-Mu¨nchen, on Teragrid clusters (allocation TG-MCA02N014), and LONI resources at LSU.|
|Classification Code:||PACS numbers: 04.25.dg, 04.20.Ha, 04.30.Db, 04.30.Nk|
|Official Citation:||Unambiguous Determination of Gravitational Waveforms from Binary Black Hole Mergers C. Reisswig, N. T. Bishop, D. Pollney, and B. Szilagyi, Phys. Rev. Lett. 103, 221101 (2009), DOI:10.1103/PhysRevLett.103.221101|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||21 Dec 2009 21:48|
|Last Modified:||26 Dec 2012 11:39|
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