The ACIGA data analysis programme

Abstract

Abstract. The Data Analysis programme of the Australian Consortium for Interferometric Gravitational Astronomy (ACIGA) was set up in 1998 by the first author to complement the then existing ACIGA programmes working on suspension systems, lasers and optics, and detector configurations. The ACIGA Data Analysis programme continues to contribute significantly in the field; we present an overview of our activities.PACS numbers: 95.55.Ym

An analysis pipeline for correlated global environmental noise

“…A total of 38 days and 21 h of data, originating from February to March 2003 and from August to October 2004, was processed in four data sets, as summarized in table 1. Processing took place on the ACIGA data analysis cluster (ADAC) [14], a cluster comprising eight single and three dual processor Linux PCs, using parallel execution software written in C. Figure 1 plots the coherence between the ANU and LHO, ANU and LLO, and LHO and LLO magnetic field sensors. The coherence plots exhibit some features which we would expect from prior studies, most notably coherence lines at multiples of the 50 Hz local electrical supplies in Australia and Italy or the 60 Hz electrical supply in the US.…”

Are We There Yet? The Road to Gravitational Wave Detection

“…ACIGA has research activities in the four major interferometer sub systems: data analysis; isolation, suspension, and thermal noise; lasers and optics; optical configurations. The data analysis group at the ANU participated in setting up the LIGO Data Analysis System, and has ongoing research activities in characterizing the noise floor of LIGO, signal extraction, environmental noise correlations, global network analysis, and GW waveforms (Scott et al 2004). The ACIGA Data Analysis Cluster is part of the LIGO Data GRID.…”