Jonathan R Gair and Edward K Porter 2009 Class. Quantum Grav. 26 225004 doi:10.1088/0264-9381/26/22/225004
Jonathan R Gair1 and Edward K Porter2,3
Show affiliationsWe describe a hybrid evolutionary algorithm that can simultaneously search for multiple supermassive black hole binary (SMBHB) inspirals in LISA data. The algorithm mixes evolutionary computation, Metropolis–Hastings methods and Nested Sampling. The inspiral of SMBHBs presents an interesting problem for gravitational wave data analysis since, due to the LISA response function, the sources have a bi-modal sky solution. We show here that it is possible not only to detect multiple SMBHBs in the data stream, but also to investigate simultaneously all the various modes of the global solution. In all cases, the algorithm returns parameter determinations within 5σ (as estimated from the Fisher matrix) of the true answer, for both the actual and antipodal sky solutions.
04.80.Nn Gravitational wave detectors and experiments
Issue 22 (21 November 2009)
Received 22 March 2009, in final form 1 September 2009
Published 19 October 2009
Jonathan R Gair and Edward K Porter 2009 Class. Quantum Grav. 26 225004
M V Berry and P Shukla 2009 J. Phys. A: Math. Theor. 42 485102
A M Reynolds 2009 J. Phys. A: Math. Theor. 42 434006
E M C Alayon et al 2009 J. Phys.: Conf. Ser. 190 012152
Ma Qian-Li and Chen Chu-Xin 2009 Chinese Phys. Lett. 26 119601
Zafar Ahmed 2009 J. Phys. A: Math. Theor. 42 472005
Tapas Ganguli et al 2009 J. Phys.: Conf. Ser. 190 012064
M A L Capri et al 2008 J. Phys. A: Math. Theor. 41 155401
T M Adamo and E T Newman 2009 Class. Quantum Grav. 26 235012
Fang Song et al 2009 Nanotechnology 20 495502