activity
20122026
most citedAnalysis Framework for the Prompt Discovery of Compact Binary Mergers in Gravitational-wave Data

415 citations · 1.3k across the 27 of their papers we have counts for

collaborators

28 papers

astro-ph.IM2026

Method to get Better Sky Maps in a GstLAL Low-Latency Analysis

Prathamesh Joshi, Becca Ewing, Chad Hanna +40

Modeled gravitational wave searches correlate the strain data with a bank of gravitational wave template waveforms to make detections of gravitational wave candidates, and these re…

gr-qc2026

GstLAL O4 Online Results Paper

Shomik Adhicary, Pratyusava Baral, Amanda Baylor +39

Gravitational-wave observations of merging binary neutron stars and black holes are now routinely made by detectors in the Advanced LIGO-Virgo-KAGRA network. Neutron star binary sy…

gr-qc2025

New Methods for Offline GstLAL Analyses

Prathamesh Joshi, Leo Tsukada, Chad Hanna +38

In this work, we present new methods implemented in the GstLAL offline gravitational wave search. These include a technique to reuse the matched filtering data products from a GstL…

gr-qc2025

How Many Times Should We Matched Filter Gravitational Wave Data? A Comparison of GstLAL's Online and Offline Performance

Prathamesh Joshi, Wanting Niu, Chad Hanna +34

Searches for gravitational waves from compact binary coalescences employ a process called matched filtering, in which gravitational wave strain data is cross-correlated against a b…

gr-qc2024

Template bank for sub solar mass compact binary mergers in the fourth observing run of Advanced LIGO, Advanced Virgo, and KAGRA

Chad Hanna, James Kennington, Wanting Niu +38

Matched-filtering searches for gravitational-wave signals from compact binary mergers employ template banks which are a collection of modeled waveforms described by unique intrinsi…

gr-qc2024

Effects of waveform systematics on inferences of neutron star population properties and the nuclear equation of state

Anjali B. Yelikar, Richard O'Shaughnessy, Daniel Wysocki +1

Gravitational waves from inspiralling neutron stars carry information about matter at extreme gravity and density. The binary neutron star (BNS) event GW170817 provided, for the fi…

gr-qc2024

Searching for asymmetric and heavily precessing Binary Black Holes in the gravitational wave data from the LIGO and Virgo third Observing Run

Stefano Schmidt, Sarah Caudill, Jolien D. E. Creighton +37

Leveraging the features of the GstLAL pipeline, we present the results of a matched filtering search for asymmetric binary black hole systems with heavily misaligned spins in LIGO…

astro-ph.HE2024

Astrophysical assumptions and equation of state framework have larger impact on equation of state inference than individual neutron star observations

Atul Kedia, Richard O'Shaughnessy, Leslie Wade +1

The wide range of nuclear densities achieved in neutron stars makes them probes of dense nuclear behavior in the form of the nuclear equation of state (EoS). Studying neutron stars…

gr-qc2024

Searching for gravitational-wave signals from precessing black hole binaries with the GstLAL pipeline

Stefano Schmidt, Sarah Caudill, Jolien D. E. Creighton +36

Precession in Binary Black Holes (BBH) is caused by the failure of the Black Hole spins to be aligned and its study can open up new perspectives in gravitational waves (GW) astrono…

gr-qc2023

When to Point Your Telescopes: Gravitational Wave Trigger Classification for Real-Time Multi-Messenger Followup Observations

Anarya Ray, Wanting Niu, Shio Sakon +36

We develop a robust and self-consistent framework to extract and classify gravitational wave candidates from noisy data, for the purpose of assisting in real-time multi-messenger f…

astro-ph.IM2023★ 53 cited

Improved ranking statistics of the GstLAL inspiral search for compact binary coalescences

Leo Tsukada, Prathamesh Joshi, Shomik Adhicary +37

Starting from May 2023, the LIGO Scientific, Virgo and KAGRA Collaboration is planning to conduct the fourth observing run with improved detector sensitivities and an expanded dete…

gr-qc2023★ 3 cited

Performance of the low-latency GstLAL inspiral search towards LIGO, Virgo, and KAGRA's fourth observing run

Becca Ewing, Rachael Huxford, Divya Singh +40

GstLAL is a stream-based matched-filtering search pipeline aiming at the prompt discovery of gravitational waves from compact binary coalescences such as the mergers of black holes…

gr-qc2022★ 28 cited

Template bank for compact binary mergers in the fourth observing run of Advanced LIGO, Advanced Virgo, and KAGRA

Shio Sakon, Leo Tsukada, Heather Fong +34

Matched-filtering gravitational wave search pipelines identify gravitational wave signals by computing correlations, i.e., signal-to-noise ratios, between gravitational wave detect…

gr-qc2022

A binary tree approach to template placement for searches for gravitational waves from compact binary mergers

Chad Hanna, James Kennington, Shio Sakon +30

We demonstrate a new geometric method for fast template placement for searches for gravitational waves from the inspiral, merger and ringdown of compact binaries. The method is bas…

astro-ph.IM2022★ 4 cited

Improving LIGO calibration accuracy by using time-dependent filters to compensate for temporal variations

Madeline Wade, Aaron D. Viets, Theresa Chmiel +2

The response of the Advanced LIGO interferometers is known to vary with time [arXiv:1608.05134]. Accurate calibration of the interferometers must therefore track and compensate for…

gr-qc2021★ 2 cited

Metric Assisted Stochastic Sampling (MASS) search for gravitational waves from binary black hole mergers

Chad Hanna, Prathamesh Joshi, Rachael Huxford +29

We present a novel gravitational wave detection algorithm that conducts a matched filter search stochastically across the compact binary parameter space rather than relying on a fi…

gr-qc2020★ 12 cited

Incorporation of Statistical Data Quality Information into the GstLAL Search Analysis

Patrick Godwin, Reed Essick, Chad Hanna +20

We present updates to GstLAL, a matched filter gravitational-wave search pipeline, in Advanced LIGO and Virgo's third observing run. We discuss the incorporation of statistical dat…

astro-ph.IM2020

GstLAL: A software framework for gravitational wave discovery

Kipp Cannon, Sarah Caudill, Chiwai Chan +28

The GstLAL library, derived from Gstreamer and the LIGO Algorithm Library, supports a stream-based approach to gravitational-wave data processing. Although GstLAL was primarily des…

gr-qc2020★ 21 cited

Inferring the neutron star equation of state simultaneously with the population of merging neutron stars

Daniel Wysocki, Richard O'Shaughnessy, Leslie Wade +1

Observations of the properties of multiple coalescing neutron stars will simultaneously provide insight into neutron star mass and spin distribution, the neutron star merger rate,…

gr-qc2019★ 51 cited

The impact of the crust equation of state on the analysis of GW170817

Rossella Gamba, Jocelyn S. Read, Leslie E. Wade

The detection of GW170817, the first neutron star-neutron star merger observed by Advanced LIGO and Virgo, and its following analyses represent the first contributions of gravitati…

gr-qc2019★ 41 cited

The GstLAL Search Analysis Methods for Compact Binary Mergers in Advanced LIGO's Second and Advanced Virgo's First Observing Runs

Surabhi Sachdev, Sarah Caudill, Heather Fong +26

After their successful first observing run (September 12, 2015 - January 12, 2016), the Advanced LIGO detectors were upgraded to increase their sensitivity for the second observing…

gr-qc2019★ 107 cited

Fast evaluation of multi-detector consistency for real-time gravitational wave searches

Chad Hanna, Sarah Caudill, Cody Messick +17

Gravitational waves searches for compact binary mergers with LIGO and Virgo are presently a two stage process. First, a gravitational wave signal is identified. Then, an exhaustive…

astro-ph.IM2018★ 19 cited

Template bank for spinning compact binary mergers in the second observation run of Advanced LIGO and the first observation run of Advanced Virgo

Debnandini Mukherjee, Sarah Caudill, Ryan Magee +25

We describe the methods used to construct the aligned-spin template bank of gravitational waveforms used by the GstLAL-based inspiral pipeline to analyze data from the second obser…

gr-qc2018★ 77 cited

Comparing two models for measuring the neutron star equation of state from gravitational-wave signals

Matthew F. Carney, Leslie E. Wade, Burke S. Irwin

Observations of gravitational-wave signals from binary neutron-star mergers, like GW170817, can be used to constrain the neutron-star equation of state (EoS). One method involves m…