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GR: Gravitation und Relativitätstheorie

GR 10: Gravitationswellen – Quellen

GR 10.8: Vortrag

Samstag, 5. März 2005, 15:45–16:00, TU BH262

Do we really need search templates for gravitational waves from compact binaries moving in inspiralling eccentric orbits ? — •Wen Linqing¹, Alessandra Buonanno², and Achamveedu Gopakumar³ — ¹Max Planck Institut für Gravitationsphysik Albert-Einstein-InstitutAm Muehlenberg 1D-14476 Golm Germany — ²groupe de Gravitation et Cosmologie (GReCO), IAP ,98bis Boulevard ARago, 75014 Paris, France — ³Theoretisch-Physikalisches Institut, FSU, Max-Wien-Platz 1, 07743 Jena, Germany

Gravitational waves from compact binaries moving in inspiralling eccentric orbits are plausible sources of gravitational radiation for ground-based interferometric detectors, especially for detectors with good sensitivity at low frequency, such as VIRGO and Advanced LIGO. By using as target signals the current, most accurate post-Newtonian waveforms for inspiralling eccentric binaries, we evaluate the loss in signal-to-noise ratio if post-Newtonian templates for compact binaries in quasi-circular orbits were used. We explore how the loss in signal-to-noise depends on initial eccentricity, individual masses and post-Newtonian orders