601 research outputs found
Searching for stochastic gravitational-wave background with the co-located LIGO interferometers
No full textAidan Brooks, David Hosken , Damien Mudge, Jesper Munch and Peter Veitch and are members of the LIGO Scientific CollaborationThis paper presents techniques developed by the LIGO Scientic Collaboration to search for the stochastic gravitational-wave background using the co-located pair of LIGO interferometers at Hanford, WA. We use correlations between interferometers and environment monitoring instruments, as well as time-shifts between two interferometers (described here for the first time) to identify correlated noise from non-gravitational sources. We veto particularly noisy frequency bands and assess the level of residual non-gravitational coupling that exists in the surviving data.N V Fotopoulos (for the LIGO Scientific Collaboration
Hepatic vein stenting for recurrent ascites in polycystic liver and kidney disease
No full textDavid W. Mudge, James Taylor and Kym M. Banniste
Search for black hole ringdown signals in LIGO S4 data
No full textCopyright © Institute of Physics and IOP Publishing Limited 2006 Peter Veitch, Jesper Munch, Damien Mudge, Aidan Brooks and David Hosken are members of the LIGO Scientific CollaborationIf a coalescing binary system results in a black hole we expect it to be a perturbed Kerr black hole and to radiate gravitational waves in the form of ringdowns. A search for such signals in data from the fourth LIGO science run is currently being developed. In this paper we outline the theory on which this search is based and use it to predict the range for this data set.Lisa M Goggin (for the LIGO Scientific Collaboration
A 10W cw Nd:YAG laser for gravitational wave interferometry
No full textDavid Hosken, Damien Mudge, Peter Veitch, Jesper Munch, and Kohei Taken
10W Nd:YAG Laser for TAMA300
No full textDavid J. Hosken, Damien Mudge, Peter J. Veitch, Jesper Munch and Kohei Taken
ACIGA laser technology: 10W and 100W
No full textDavid Hosken, Damien Mudge, Peter Veitch,Murray Hamilton and Jesper Munc
Adelaide High Power Laser Development
No full textDamien Mudge, David Hosken, Peter Veitch, Jesper Munchhttp://www.ligo.caltech.edu/docs/G/G040068-00/http://admdbsrv.ligo.caltech.edu/meetings/lsc_default_closed.htf?meetingid=1
Comparison of band-limited RMS of error channel and calibrated strain in LIGO S5 data
No full textAidan Brooks, David Hosken , Damien Mudge, Jesper Munch and Peter Veitch and are members of the LIGO Scientific CollaborationMany LIGO data analysis pipelines use either the DARM ERR or AS Q channels as the data source and use a response function R(f) generated from time-dependent calibration measurements to convert to strain in the frequency domain. As calibration varies on a timescale of tens of seconds, the response function must be updated frequently. An alternative is to use time-domain calibrated strain h(t). During the recent year-long LIGO science run (S5), preliminary strain data was published alongside raw interferometer output, typically within half an hour of the raw data being produced. As strain data is now available in highly-reduced form within the LIGO data archive, it represents a convenient alternative for LIGO search pipelines. This paper examines a measure of quality for calibrated strain data by calculating the band-limited RMS (BLRMS) difference between h(t) and strain he(t) as calculated directly from DARM ERR in the frequency domain.P R Charlton (for the LIGO Scientific Collaboration
Status of the LIGO detectors
No full textMembers of the LIGO Scientific Collaboration Aidan Brooks, David Hosken, Damien Mudge, Jesper Munch, David Ottaway, Peter VeitchAll three LIGO detectors have reached sensitivities within a factor of 2 of design over a wide range of frequencies. A sky-averaged detection range (SNR > 8) of more than 10 Mpc for inspiral binary neutron stars with masses of 1.4 Msol has been achieved with the best instrument. The fourth LIGO science run taking data for 30 days has been completed earlier this year with a triple coincidence duty cycle greater than 50%. A commissioning effort to scale up the cavity powers to design sensitivity as well as preparations for an extended science run is underway. The data from the first two science runs were fully analysed and results are summarized.Daniel Sigg (for the LIGO Science Collaboration
10W Injection-Locked CW Nd:YAG laser
No full textDavid Hosken, Damien Mudge, Peter Veitch, Jesper Munchhttp://admdbsrv.ligo.caltech.edu/meetings/lsc_default_closed.htf?meetingid=17http://www.ligo.caltech.edu/docs/G/G040069-00
- …
