R. Macas
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View article: LIGO Detector Characterization in the first half of the fourth Observing run
LIGO Detector Characterization in the first half of the fourth Observing run Open
Progress in gravitational-wave (GW) astronomy depends upon having sensitive detectors with good data quality. Since the end of the Laser Interferometer Gravitational-Wave Observatory-Virgo-KAGRA third Observing run in March 2020, detector-…
View article: Squeezing the quantum noise of a gravitational-wave detector below the standard quantum limit
Squeezing the quantum noise of a gravitational-wave detector below the standard quantum limit Open
The Heisenberg uncertainty principle dictates that the position and momentum of an object cannot be simultaneously measured with arbitrary precision, giving rise to an apparent limitation known as the standard quantum limit (SQL). Gravitat…
View article: Data Release for "Revisiting the evidence for precession in GW200129 with machine learning noise mitigation"
Data Release for "Revisiting the evidence for precession in GW200129 with machine learning noise mitigation" Open
Cleaned gravitational-wave data frame for the Livingston interferometer around GW200129 using NLSub, a machine-learning algorithm. For more details, see the publication on ArXiv: https://arxiv.org/abs/2311.09921. The data frame can be load…
View article: Data Release for "Revisiting the evidence for precession in GW200129 with machine learning noise mitigation"
Data Release for "Revisiting the evidence for precession in GW200129 with machine learning noise mitigation" Open
Cleaned gravitational-wave data frame for the Livingston interferometer around GW200129 using NLSub, a machine-learning algorithm. For more details, see the publication on ArXiv: https://arxiv.org/abs/2311.09921. The data frame can be load…
View article: Revisiting the evidence for precession in GW200129 with machine learning noise mitigation
Revisiting the evidence for precession in GW200129 with machine learning noise mitigation Open
GW200129 is claimed to be the first-ever observation of the spin-disk orbital precession detected with gravitational waves (GWs) from an individual binary system. However, this claim warrants a cautious evaluation because the GW event coin…
View article: Broadband Quantum Enhancement of the LIGO Detectors with Frequency-Dependent Squeezing
Broadband Quantum Enhancement of the LIGO Detectors with Frequency-Dependent Squeezing Open
Quantum noise imposes a fundamental limitation on the sensitivity of interferometric gravitational-wave detectors like LIGO, manifesting as shot noise and quantum radiation pressure noise. Here, we present the first realization of frequenc…
View article: Sensitive test of non-Gaussianity in gravitational-wave detector data
Sensitive test of non-Gaussianity in gravitational-wave detector data Open
Methods for parameter estimation of gravitational-wave data assume that detector noise is stationary and Gaussian. Real data deviate from these assumptions, which causes bias in the inferred parameters and incorrect estimates of the errors…
View article: Antiglitch: a Quasi-physical Model for Removing Short Glitches from LIGO and Virgo Data
Antiglitch: a Quasi-physical Model for Removing Short Glitches from LIGO and Virgo Data Open
Gravitational-wave observatories become more sensitive with each observing run, increasing the number of detected gravitational-wave signals. A limiting factor in identifying these signals is the presence of transient non-Gaussian noise, w…
View article: A Sensitive Test of Non-Gaussianity in Gravitational-wave Detector Data
A Sensitive Test of Non-Gaussianity in Gravitational-wave Detector Data Open
Methods for parameter estimation of gravitational-wave data assume that detector noise is stationary and Gaussian. Real data deviates from these assumptions, which causes bias in the inferred parameters and incorrect estimates of the error…
View article: Searching for the causes of anomalous Advanced LIGO noise
Searching for the causes of anomalous Advanced LIGO noise Open
Advanced LIGO and Advanced Virgo have detected gravitational waves from astronomical sources to open a new window on the Universe. To explore this new realm requires an exquisite level of detector sensitivity, meaning that the much stronge…
View article: GLADE+ : an extended galaxy catalogue for multimessenger searches with advanced gravitational-wave detectors
GLADE+ : an extended galaxy catalogue for multimessenger searches with advanced gravitational-wave detectors Open
We present GLADE+, an extended version of the GLADE galaxy catalogue introduced in our previous paper for multimessenger searches with advanced gravitational-wave detectors. GLADE+ combines data from six separate but not independent astron…
View article: Impact of noise transients on low latency gravitational-wave event localization
Impact of noise transients on low latency gravitational-wave event localization Open
Gravitational-wave (GW) data contains non-Gaussian noise transients called\n"glitches". During the third LIGO-Virgo observing run about 24% of all\ngravitational-wave candidates were in the vicinity of a glitch, while even more\nevents cou…
View article: Impact of noise transients on low latency gravitational-wave event localisation
Impact of noise transients on low latency gravitational-wave event localisation Open
Gravitational-wave (GW) data contains non-Gaussian noise transients called "glitches". During the third LIGO-Virgo observing run about 24% of all gravitational-wave candidates were in the vicinity of a glitch, while even more events could …
View article: Reducing scattered light in LIGO’s third observing run
Reducing scattered light in LIGO’s third observing run Open
Noise due to scattered light has been a frequent disturbance in the advanced LIGO gravitational wave detectors, hindering the detection of gravitational waves. The non stationary scatter noise caused by low frequency motion can be recogniz…
View article: Point Absorber Limits to Future Gravitational-Wave Detectors
Point Absorber Limits to Future Gravitational-Wave Detectors Open
High-quality optical resonant cavities require low optical loss, typically on the scale of parts per million. However, unintended micron-scale contaminants on the resonator mirrors that absorb the light circulating in the cavity can deform…
View article: Sensitivity and performance of the Advanced LIGO detectors in the third observing run
Sensitivity and performance of the Advanced LIGO detectors in the third observing run Open
On April 1st, 2019, the Advanced Laser Interferometer Gravitational-Wave Observatory (aLIGO), joined by the Advanced Virgo detector, began the third observing run, a year-long dedicated search for gravitational radiation. The LIGO detector…
View article: GLADE: A galaxy catalogue for multimessenger searches in the advanced gravitational-wave detector era
GLADE: A galaxy catalogue for multimessenger searches in the advanced gravitational-wave detector era Open
We introduce a value-added full-sky catalogue of galaxies, named as Galaxy List for the Advanced Detector Era, or GLADE. The purpose of this catalogue is to (i) help identifications of host candidates for gravitational-wave events, (ii) su…