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LISA parameter estimation of supermassive black holes

Miquel Trias1 and Alicia M Sintes1,2

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We study parameter estimation of supermassive black holes in the range 105–108Modot by LISA using the inspiral full post-Newtonian gravitational waveforms, and we compare the results with those arising from the commonly used restricted post-Newtonian approximation. The analysis shows that for observations of the last year before merger, the inclusion of the higher harmonics clearly improves the parameter estimation. We pay special attention to the source location errors and study the improvement on the percentage of sources for which we could potentially identify electromagnetic counterparts. We also show how the additional harmonics can help to mitigate the impact of losing laser links during the mission.


PACS

97.60.Lf Black holes

97.20.Pm Supergiant stars

95.55.Ym Gravitational radiation detectors; mass spectrometers; and other instrumentation and techniques

04.70.-s Physics of black holes

04.80.Nn Gravitational wave detectors and experiments

MSC

83C35 Gravitational waves

83C57 Black holes

Subjects

Instrumentation and measurement

Gravitation and cosmology

Astrophysics and astroparticles

Dates

Issue 18 (21 September 2008)

Received 28 March 2008, in final form 21 May 2008

Published 2 September 2008



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