Speaker
Description
The Fast Galactic Binary (FGB) method is an algorithm to simulate the LISA response to galactic binaries, which are expected to emit most of the gravitational waves detected by LISA. This algorithm operates in the time and frequency domains. However, the standard algorithm generates waveforms that exhibit artifacts, yielding notable approximation errors. These artifacts are due to discontinuity effects introduced when moving between the domains. We present a new modified FGB algorithm where these artifacts are eliminated and which allows for simulating more complex detector geometries. The proposed algorithm is well-suited for GPU implementations, and several tens of millions of events are accurately evaluated in seconds on a desktop computer.