Publications (24)
Automated Transient Detection with Shapelet Analysis in Image-subtracted Data
Kendall Ackley, Stephen S. Eikenberry, Ceren Yildirim +2
We present a method for characterizing image-subtracted objects based on shapelet analysis to identify transient events in ground-based time-domain surveys. We decompose the image-…
Detecting and reconstructing gravitational waves from the next Galactic core-collapse supernova in the Advanced Detector Era
Marek Szczepanczyk, Javier Antelis, Michael Benjamin +17
We performed a detailed analysis of the detectability of a wide range of gravitational waves derived from core-collapse supernova simulations using gravitational-wave detector nois…
Wavescan: multiresolution regression of gravitational-wave data
Sergey Klimenko
Identification of a transient gravitational-wave signal embedded into non-stationary noise requires the analysis of time-dependent spectral components in the resulting time series.…
Regression of Environmental Noise in LIGO Data
Vaibhav Tiwari, Marco Drago, Valery Frolov +8
We address the problem of noise regression in the output of gravitational-wave (GW) interferometers, using data from the physical environmental monitors (PEM). The objective of the…
An Optically Targeted Search for Gravitational Waves emitted by Core-Collapse Supernovae during the Third Observing Run of Advanced LIGO and Advanced Virgo
Marek J. SzczepaÅczyk, Yanyan Zheng, Javier M. Antelis +35
We present the results from a search for gravitational-wave transients associated with core-collapse supernovae observed optically within 30 Mpc during the third observing run of A…
MLGWSC-1: The first Machine Learning Gravitational-Wave Search Mock Data Challenge
Marlin B. Schäfer, OndÅej Zelenka, Alexander H. Nitz +20
We present the results of the first Machine Learning Gravitational-Wave Search Mock Data Challenge (MLGWSC-1). For this challenge, participating groups had to identify gravitationa…
Localization of short duration gravitational-wave transients with the early advanced LIGO and Virgo detectors
Reed Essick, Salvatore Vitale, Erik Katsavounidis +2
The Laser Interferometer Gravitational wave Observatory (LIGO) and Virgo, advanced ground-based gravitational-wave detectors, will begin collecting science data in 2015. With first…
Gravitational Waves Detected by a Burst Search in LIGO/Virgo's Third Observing Run
Tanmaya Mishra, Shubhagata Bhaumik, V. Gayathri +3
Burst searches identify gravitational-wave (GW) signals in the detector data without use of a specific signal model, unlike the matched-filter searches that correlate data with sim…
Inferring additional physics through unmodelled signal reconstructions
Rimo Das, V. Gayathri, Divyajyoti +4
Parameter estimation of gravitational wave data is often computationally expensive, requiring simplifying assumptions such as circularisation of binary orbits. Although, if include…
Plans for the LIGO-TAMA Joint Search for Gravitational Wave Bursts
Patrick J. Sutton, Masaki Ando, Patrick Brady +18
We describe the plans for a joint search for unmodelled gravitational wave bursts being carried out by the LIGO and TAMA collaborations using data collected during February-April 2…
Leveraging waveform complexity for confident detection of gravitational waves
Jonah B. Kanner, Tyson B. Littenberg, Neil Cornish +6
The recent completion of Advanced LIGO suggests that gravitational waves (GWs) may soon be directly observed. Past searches for gravitational-wave transients have been impacted by…
On similarity of binary black hole gravitational-wave skymaps: to observe or to wait?
Salvatore Vitale, Reed Essick, Erik Katsavounidis +2
Localization estimates for GW150914, the first binary black hole detected by the LIGO instruments, were shared with partner facilities for electromagnetic follow-up. While the sour…
Observing an intermediate mass black hole GW190521 with minimal assumptions
Marek Szczepanczyk, Sergey Klimenko, Brendan O'Brien +10
On May 21, 2019 Advanced LIGO and Advanced Virgo detectors observed a gravitational-wave transient GW190521, the heaviest binary black-hole merger detected to date with the remnant…
Sensitivity Comparison of Searches for Binary Black Hole Coalescences with Ground-based Gravitational-Wave Detectors
Satya Mohapatra, Laura Cadonati, Sarah Caudill +7
Searches for gravitational-wave transients from binary black hole coalescences typically rely on one of two approaches: matched filtering with templates and morphology-independent…
Gravitational Wave Detector Sensitivity to Eccentric Black Hole Mergers
Shubhagata Bhaumik, V. Gayathri, Imre Bartos +8
Orbital eccentricity in compact binary mergers carries crucial information about the binary's formation and environment. There are emerging signs that some of the mergers detected…
Search for gravitational-wave bursts in the third Advanced LIGO-Virgo run with coherent WaveBurst enhanced by Machine Learning
Marek J. SzczepaÅczyk, Francesco Salemi, Sophie Bini +13
This paper presents a search for generic short-duration gravitational-wave (GW) transients (or GW bursts) in the data from the third observing run of Advanced LIGO and Advanced Vir…
Detection of LIGO-Virgo binary black holes in the pair-instability mass gap
Brendan O'Brien, Marek Szczepanczyk, V. Gayathri +5
By probing the population of binary black hole (BBH) mergers detected by LIGO-Virgo, we can infer properties about the underlying black hole formation channels. A mechanism known a…
Precision Ringdown Measurements of Binary Black Hole Remnants
Achal Kumar, Poulami Dutta Roy, Marek J. SzczepaÅczyk +2
The paper presents a precise analysis of the ringdown phase of binary black hole mergers using coherent WaveBurst reconstruction, yielding tighter constraints on the dominant quasi…
A Proposed Search for the Detection of Gravitational Waves from Eccentric Binary Black Holes
Vaibhav Tiwari, Sergey Klimenko, Nelson Christensen +14
Most of compact binary systems are expected to circularize before the frequency of emitted gravitational waves (GWs) enters the sensitivity band of the ground based interferometric…
Optimization of model independent gravitational wave search using machine learning
Tanmaya Mishra, Brendan O'Brien, V. Gayathri +4
The Coherent WaveBurst (cWB) search algorithm identifies generic gravitational wave (GW) signals in the LIGO-Virgo strain data. We propose a machine learning (ML) method to optimiz…
Measurement of sub-dominant harmonic modes for gravitational wave emission from a population of binary black holes
Brendan D. O'Brien, Carlos F. Da Silva Costa, Sergey Klimenko
Measurements of multiple harmonic modes in the gravitational wave signals from binary black hole events could provide an accurate test of general relativity, however they have neve…
Hierarchical Black Hole Mergers in Active Galactic Nuclei
Yang Yang, Imre Bartos, V. Gayathri +8
The origins of the stellar-mass black hole mergers discovered by LIGO/Virgo are still unknown. Here we show that, if migration traps develop in the \add{accretion} disks of Active…
Excluding Source Models with Multiple Astrophysical Observations
Peter Kalmus, Michele Zanolin, Sergey Klimenko
We describe a general method to observationally exclude a theoretical model for gravitational wave (GW) emission from a transient astrophysical source (event) by using a null detec…
Multimessenger Science Reach and Analysis Method for Common Sources of Gravitational Waves and High-energy Neutrinos
Bruny Baret, Imre Bartos, Boutayeb Bouhou +23
We present the baseline multimessenger analysis method for the joint observations of gravitational waves (GW) and high-energy neutrinos (HEN), together with a detailed analysis of…