Publications (14)
Search for continuous gravitational waves from neutron stars in five globular clusters in the first part of the fourth LIGO-Virgo-KAGRA observing run
Damon H. T. Cheung, Keith Riles, Rafel Amengual +14
We present the results of directed searches for continuous gravitational waves from unknown neutron stars in five Milky Way globular clusters. We carry out the searches in the LIGO…
Search for continuous gravitational waves directed at sub-threshold radiometer candidates in O3 LIGO data
Alan M. Knee, Helen Du, Evan Goetz +7
We present results of a follow-up search for continuous gravitational waves (CWs) associated with sub-threshold candidates from the LIGO-Virgo-KAGRA (LVK) All-Sky All-Frequency (AS…
Blip glitches in Advanced LIGO data
Miriam Cabero, Andrew Lundgren, Alex H. Nitz +8
Blip glitches are short noise transients present in data from ground-based gravitational-wave observatories. These glitches resemble the gravitational-wave signature of massive bin…
The US Program in Ground-Based Gravitational Wave Science: Contribution from the LIGO Laboratory
David Reitze, Rich Abbott, Carl Adams +181
Recent gravitational-wave observations from the LIGO and Virgo observatories have brought a sense of great excitement to scientists and citizens the world over. Since September 201…
Searches for continuous gravitational waves from Scorpius X-1 and XTE J1751-305 in LIGO's sixth science run
Grant David Meadors, Evan Goetz, Keith Riles +2
Scorpius X-1 (Sco X-1) and X-ray transient (XTE) J1751-305 are Low-Mass X-ray Binaries (LMXBs) that may emit continuous gravitational waves detectable in the band of ground-based i…
Coherently combining short data segments for all-sky semi-coherent continuous gravitational wave searches
Evan Goetz, Keith Riles
We present a method for coherently combining short data segments from gravitational-wave detectors to improve the sensitivity of semi-coherent searches for continuous gravitational…
Squeezing the quantum noise of a gravitational-wave detector below the standard quantum limit
Wenxuan Jia, Victoria Xu, Kevin Kuns +168
Precision measurements of space and time, like those made by the detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO), are often confronted with fundamental…
Tuning into Scorpius X-1: adapting a continuous gravitational-wave search for a known binary system
Grant David Meadors, Evan Goetz, Keith Riles
We describe how the TwoSpect data analysis method for continuous gravitational waves (GWs) has been tuned for directed sources such as the Low Mass X-ray Binary (LMXB), Scorpius X-…
Search for Gravitational Waves from Scorpius X-1 in LIGO O3 Data With Corrected Orbital Ephemeris
John T. Whelan, Rodrigo Tenorio, Jared K. Wofford +10
Improved observational constraints on the orbital parameters of the low-mass X-ray binary Scorpius~X-1 were recently published in Killestein et al (2023). In the process, errors we…
Characterization of systematic error in Advanced LIGO calibration
Ling Sun, Evan Goetz, Jeffrey S. Kissel +23
The raw outputs of the detectors within the Advanced Laser Interferometer Gravitational-Wave Observatory need to be calibrated in order to produce the estimate of the dimensionless…
Point absorbers in Advanced LIGO
Aidan F. Brooks, Gabriele Vajente, Hiro Yamamoto +198
Small, highly absorbing points are randomly present on the surfaces of the main interferometer optics in Advanced LIGO. The resulting nano-meter scale thermo-elastic deformations a…
physiCal: A physical approach to the marginalization of LIGO calibration uncertainties
Salvatore Vitale, Carl-Johan Haster, Ling Sun +4
The data from ground based gravitational-wave detectors such as Advanced LIGO and Virgo must be calibrated to convert the digital output of photodetectors into a relative displacem…
Calibration Uncertainty for Advanced LIGO's First and Second Observing Runs
Craig Cahillane, Joe Betzwieser, Duncan A. Brown +13
Calibration of the Advanced LIGO detectors is the quantification of the detectors' response to gravitational waves. Gravitational waves incident on the detectors cause phase shifts…
Characterization of systematic error in Advanced LIGO calibration in the second half of O3
Ling Sun, Evan Goetz, Jeffrey S. Kissel +19
We present the probability distribution of the systematic errors in the most accurate, high-latency version of the reconstructed dimensionless strain , at the Hanford and Living…