INFORMATION-ENTROPY METHOD FOR DETECTING GRAVITATIONAL WAVE SIGNALS

Estimation of Parameters of Gravitational Wave Signals

With the on going construction of several large and medium scale laser in-terferometric gravitational wave antennas around the globe, the problem of the detection of gravitational waves has acquired great impetus. Since grav-itational wave signals from astrophysical sources are expected to be weak, despite the state of the art technology being employed, the development of optimal signal extract...

Identifying deterministic signals in simulated gravitational wave data: algorithmic complexity and the surrogate data method

We describe the application of complexity estimation and the surrogate data method to identify deterministic dynamics in simulated gravitational wave (GW) data contaminated with white and coloured noises. The surrogate method uses algorithmic complexity as a discriminating statistic to decide if noisy data contain a statistically significant level of deterministic dynamics (the GW signal). The ...

Detecting gravitational wave emission from the known accreting neutron stars

Detection of gravitational waves from accreting neutron stars (NSs) in our galaxy, due to ellipticity or internal oscillation, would be a breakthrough in our understanding of compact objects and explain the absence of NSs rotating near the break-up limit. Direct detection, however, poses a formidable challenge. Using the current data available on the properties of the accreting NSs in Low Mass ...

Detecting Massive Black Holes via Attometry: Gravitational Wave Astronomy Begins

In their fall 2015 observing run the two detectors of the Advanced Laser Interferometer GravitationalWave Observatory (Advanced LIGO) simultaneously observed transient gravitational-wave signals. The detected waveforms indicated the inspiral and merger of pairs of massive black holes more than 1 billion years ago. These discoveries marked the first direct detections of gravitational waves and t...

Detecting a Stochastic Gravitational-Wave Background: The Overlap Reduction Function