Séminaire / Seminar GReCO |
| « Analyzing massive black hole binaries in LISA data and using these observations for cosmology » |
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A. Petiteau |
| Coalescing massive black hole binaries are the strongest and probably the most important gravitational wave sources in the band of the future space based observatory LISA (Laser Interferometer Space Antenna). The observation of these sources will give a large amount of astrophysical and cosmological informations. In this seminar, I will present how we can extract astrophysical informations from LISA data using an analysis method based on genetic algorithms and a model of gravitational wave signal including spin of both black holes. Then I will show an application of these observations, using the massive black hole binaries as a standard sirens to make an independent measurement of dark energy equation of state. This statical method which combines LISA observations and spectroscopic surveys of galaxies, provides an independent measurement without using any distinctive electromagnetic counterpart. |
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lundi 14 février 2011 - 11:00 Salle des séminaires Évry Schatzman Institut d'Astrophysique de Paris |
| Pages web du séminaire / Seminar's webpage |