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Jena 2013 – wissenschaftliches Programm

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GR: Fachverband Gravitation und Relativitätstheorie

GR 2: Gravitationswellen I

GR 2.7: Vortrag

Montag, 25. Februar 2013, 18:00–18:15, HS 6

Space Interferometry Simulation for LISA — •Andreas Schreiber, Markus Otto, Gerhard Heinzel, and Karsten Danzmann — Max-Planck-Institut für Gravitationsphysik, Callinstraße 38, 30167 Hannover

The "Laser Interferometer Space Antenna" (LISA) is a space-borne gravitational wave detector planned for the next decade. LISA aims at the detection of gravitational waves (GW) in the band of 0.1 mHz to 1 Hz. Sources within this band are, e.g., white dwarf and SMBH binaries. However, the detection of GW is disturbed by various noise sources. In particular, these are laser frequency noise, clock noise and displacement noise due to the motion of the satellites.
In our talk, we will present a numerical "Space Interferometry Simulation" (SIS). The simulation consists of models for GW, satellites and their orbits. Moreover, we implemented "Time-Delay Interferometry" (TDI) algorithms to remove the dominant noises listed above. The goal of the simulation is the verification of noise reduction by TDI within a realistic detector model. This talk will give an overview of the simulation and the gravitational wave detection in space, including first results.

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