D. S. Johnson

New Approach to Develop Ductile Cast Iron Digital Grade for Automotive Components

Ana Isabel Fernández-Calvo, Javier E. Garay, D. S. Johnson, C. Monteiro et autres

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Erratum: “A Gravitational-wave Measurement of the Hubble Constant Following the Second Observing Run of Advanced LIGO and Virgo” (2021, ApJ, 909, 218)

B. P. Abbott, R. Abbott, T. D. Abbott, S. Abraham et autres

[no abstract available]

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Erratum: Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model [Phys. Rev. D 100 , 122002 (2019)]

B. P. Abbott, R. Abbott, T. D. Abbott, S. Abraham et autres

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Erratum: “Searches for Continuous Gravitational Waves from 15 Supernova Remnants and Fomalhaut b with Advanced LIGO” (2019, ApJ, 875, 122) *

B. P. Abbott, R. Abbott, T. D. Abbott, S. Abraham et autres

Equation (5) of the published article?(Abbott et al. 2019) is in error; it should read (Formula Presented) The upper limits on ò presented in the published article are unaffected by this error.

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VizieR Online Data Catalog: Search for GW signals associated with GRBs (Abbott+, 2019)

B. P. Abbott, Robert Abbott, T. D. Abbott, S. Abraham et autres

We present the results of targeted searches for gravitational-wave transients associated with gamma-ray bursts during the second observing run of Advanced LIGO and Advanced Virgo, which took place from 2016 November to 2017 August. We have analyzed 98 gamma-ray bursts using an …

VizieR Online Data Catalog: 2015-2017 LIGO obs. analysis for 221 pulsars (Abbott+, 2019)

B. P. Abbott, R. Abbott, T. D. Abbott, S. Abraham et autres

The data analyzed in this paper consist of those obtained by the two LIGO detectors (the LIGO Hanford Observatory, commonly abbreviated to LHO or H1, and the LIGO Livingston Observatory, abbreviated to LLO or L1) taken during their first and second observing …

Erratum: “Searches for Gravitational Waves from Known Pulsars at Two Harmonics in 2015–2017 LIGO Data” (2019, ApJ, 879, 10)

B. P. Abbott, R. Abbott, T. D. Abbott, S. Abraham et autres

Due to an error at the publisher, in the published article the number of pulsars presented in the paper is incorrect in multiple places throughout the text. Specifically, “222” pulsars should be “221.” Additionally, the number of pulsars for which we have …

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P3.11 Plastic Material Classification using Neural Network based Audio Signal Analysis

Sascha Grollmisch, D. S. Johnson, Thomas Krüger, Judith Liebetrau

Analyzing the acoustic response of products being struck is a potential method to detect material deviations or faults for automated quality control. To evaluate this, we implement a material detection system by equipping an air hockey table with two microphones and plastic …

Optically targeted search for gravitational waves emitted by core-collapse supernovae during the first and second observing runs of advanced LIGO and advanced Virgo

B. P. Abbott, R. Abbott, T. D. Abbott, S. Abraham et autres

We present the results from a search for gravitational-wave transients associated with core-collapse supernovae observed within a source distance of approximately 20 Mpc during the first and second observing runs of Advanced LIGO and Advanced Virgo. No significant gravitational-wave candidate was detected. …

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GW190425: Observation of a Compact Binary Coalescence with Total Mass ∼ 3.4 M ⊙

B. P. Abbott, R. Abbott, T. D. Abbott, S. Abraham et autres

Abstract On 2019 April 25, the LIGO Livingston detector observed a compact binary coalescence with signal-to-noise ratio 12.9. The Virgo detector was also taking data that did not contribute to detection due to a low signal-to-noise ratio, but were used for subsequent …

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A guide to LIGO–Virgo detector noise and extraction of transient gravitational-wave signals

B. P. Abbott, R. Abbott, T D Abbott, Sabu Abraham et autres

The LIGO Scientific Collaboration and the Virgo Collaboration have cataloged eleven confidently detected gravitational-wave events during the first two observing runs of the advanced detector era. All eleven events were consistent with being from well-modeled mergers between compact stellar-mass objects: black holes …

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Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

B. P. Abbott, R. Abbott, T. D. Abbott, S. Abraham et autres

We present results from a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to track spin wandering. This search improves on previous HMM-based searches of LIGO data by using an improved …

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