Search Results for author:
Found 17 papers, 16 papers with code
MLGWSC-1: The first Machine Learning Gravitational-Wave Search Mock Data Challenge
The final of the 4 provided datasets contained real noise from the O3a observing run and signals up to a duration of 20 seconds with the inclusion of precession effects and higher order modes.
From One to Many: A Deep Learning Coincident Gravitational-Wave Search
The network is applied to the data from both observatories independently and we check for events coincident in time between the two.
Training Strategies for Deep Learning Gravitational-Wave Searches
We find that the deep learning algorithms can generalize low signal-to-noise ratio (SNR) signals to high SNR ones but not vice versa.
Search for gravitational waves from the coalescence of sub-solar mass and eccentric compact binaries
Sub-solar mass black holes are a signature of primordial origin black holes, which may be a component of dark matter.
High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
Prospects for detecting gravitational waves from eccentric subsolar mass compact binaries
Alternatively, primordial black holes as dark matter could also form binaries in the late universe due to dynamical encounters and gravitational-wave braking.
High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
GW190521 may be an intermediate mass ratio inspiral
For the uniform in mass-ratio prior, we find that the component masses are $m_1^{\mathrm{src}} = 168_{-61}^{+15}\,\mathrm{M}_{\odot}$ and $m_2^{\mathrm{src}} = 16_{-3}^{+33}\,\mathrm{M}_{\odot}$.
High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
Gravitational-wave Merger Forecasting: Scenarios for the early detection and localization of compact-binary mergers with ground based observatories
We find that for a fiducial rate of binary neutron star mergers of $1000 ~\mathrm{Gpc}^{-3} \mathrm{yr}^{-1}$, the Design, A+, and Voyager era networks can provide 18, 54, and 195s of warning for one source per year of observing, respectively, with a sky localization area $<$100 deg$^2$ at a $90\%$ credible level.
High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
Binary black hole spectroscopy: a no-hair test of GW190814 and GW190412
Using these events, we search for physics beyond GR by allowing the source parameters measured from the sub-dominant harmonics to deviate from that of the dominant mode.
General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena
Detection of gravitational-wave signals from binary neutron star mergers using machine learning
Compared to other state-of-the-art machine learning algorithms, we find an improvement by a factor of 6 in sensitivity to signals with signal-to-noise ratio below 25.
Measuring the eccentricity of GW170817 and GW190425
These signals were detected by matched-filter searches that assume the star's orbit has circularized by the time their gravitational-wave emission is observable.
High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
A Search for Gravitational Waves from Binary Mergers with a Single Observatory
We also describe a procedure to assess candidates observed in a single detector when multiple detectors are observing.
High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
2-OGC: Open Gravitational-wave Catalog of binary mergers from analysis of public Advanced LIGO and Virgo data
We identify a population of 14 binary black hole mergers with $p_{\mathrm{astro}} > 0. 5$ along with the GW170817 binary neutron star merger.
High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
Potential Gravitational-wave and Gamma-ray Multi-messenger Candidate from Oct. 30, 2015
By comparing the rate of binary neutron star mergers to our search-estimated rate of false alarms, we estimate that there is a 1 in 4 chance this candidate is astrophysical in origin.
High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
Posterior samples of the parameters of black hole mergers released to date in the second Advanced LIGO--Virgo observing run
This paper presents the first public data release of samples from the posterior probability density function for the three binary black hole mergers---GW170104, GW170608, and GW170814---detected during the second observing run of the Advanced LIGO and Virgo observatories.
General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics
Investigating the noise residuals around the gravitational wave event GW150914
We find that after subtracting the maximum likelihood waveform there are no statistically significant correlations between the residuals of the two detectors at the time of GW150914.
High Energy Astrophysical Phenomena
1-OGC: The first open gravitational-wave catalog of binary mergers from analysis of public Advanced LIGO data
The three most significant signals in our catalog correspond to the binary black hole mergers GW150914, GW151226, and LVT151012.
General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena
PyCBC Inference: A Python-based parameter estimation toolkit for compact binary coalescence signals
We introduce new modules in the open-source PyCBC gravitational- wave astronomy toolkit that implement Bayesian inference for compact-object binary mergers.
Instrumentation and Methods for Astrophysics
