AN
AJ Nielsen
gr-qcastro-ph.HEastro-ph.IMastro-ph.COhep-thhep-phData analysisElectromagnetic counterpartsGravitational-wave detectorsGravitational waves
On Valency
published · living versionsW_tmzfqq26·v1 · currentpublished
The Radio Neutrino Observatory in Greenland (RNO-G) - System Design and Instrumentation
with G Collaboration, Steven Barwick
1 version
Preprints & journals
118 papers in the corpus · 2005–2026Direct Multimodel Dark Matter Search with Gravitational-Wave Interferometers Using Data from the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run.42854116 · Abac, A G, Abouelfettouh, I, Acernese, F et al.2026 · 0 citationsPhysical review letters. 2026;137(13):131001
GW240925 and GW250207: Astrophysical Calibration of Gravitational Wave Detectors.42675396 · Abac, A G, Abouelfettouh, I, Acernese, F et al.2026 · 2 citationsPhysical review letters. 2026;137(7):071401
Searches for Continuous Gravitational Waves from Supernova Remnants in the first part of the LIGO-Virgo-KAGRA Fourth Observing run2603.25808v2 · A. G. Abac, I. Abouelfettouh, F. Acernese et al.2026 · 2 citationsThe Astrophysical Journal, 1004 204 (2026)
Narrowband searches for continuous gravitational waves from known pulsars in the first two parts of the fourth LIGO--Virgo--KAGRA observing run2603.25938v2 · A. G. Abac, I. Abouelfettouh, F. Acernese et al.2026 · 1 citationThe Astrophysical Journal, 1005:221, 2026 July 10
Constraints on gravitational waves from the 2024 Vela pulsar glitch2512.17990v2 · A. G. Abac, I. Abouelfettouh, F. Acernese et al.2025 · 1 citationThe Astrophysical Journal 1005:12 (2026)
Search for planetary-mass ultra-compact binaries using data from the first part of the LIGO--Virgo--KAGRA fourth observing run2511.19911v3 · A. G. Abac, I. Abouelfettouh, F. Acernese et al.2025 · 0 citationsPhys. Rev. D 114, 022005 (2026)
GW241011 and GW241110: Exploring Binary Formation and Fundamental Physics with Asymmetric, High-Spin Black Hole Coalescence2510.26931v1 · A. G. Abac, I. Abouelfettouh, F. Acernese et al.2025 · 34 citationsAstrophys. J. Letters, 993, L21 (2025)
GW230814: investigation of a loud gravitational-wave signal observed with a single detector2509.07348v2 · A. G. Abac, I. Abouelfettouh, F. Acernese et al.2025 · 9 citationsAstrophys.J.Lett. 1004 (2026) 2, L23
Directed searches for gravitational waves from ultralight vector boson clouds around merger remnant and galactic black holes during the first part of the fourth LIGO-Virgo-KAGRA observing run2509.07352v3 · A. G. Abac, I. Abouelfettouh, F. Acernese et al.2025 · 1 citationarXiv
Upper Limits on the Isotropic Gravitational-Wave Background from the first part of LIGO, Virgo, and KAGRA's fourth Observing Run2508.20721v1 · A. G. Abac, I. Abouelfettouh, F. Acernese et al.2025 · 3 citationsarXiv
GWTC-4.0: Methods for Identifying and Characterizing Gravitational-wave Transients2508.18081v3 · A. G. Abac, I. Abouelfettouh, F. Acernese et al.2025 · 24 citationsThe Astrophysical Journal Letters, 2026, Volume 1004, Number 2
GW231123: a Binary Black Hole Merger with Total Mass 190-265 2507.08219v3 · A. G. Abac, I. Abouelfettouh, F. Acernese et al.2025 · 128 citationsApJL 993 L25 (2025)
A pipeline to search for signatures of line-of-sight acceleration in gravitational wave signals produced by compact binary coalescences2506.22272v3 · Avinash Tiwari, Aditya Vijaykumar, Shasvath J. Kapadia et al.2025 · 2 citationsarXiv
Constraining Dirty Black Holes and pseudo-complex General Relativity with the Gravitational Waves Transient Catalog 3.02505.10199v2 · Yehu I. Maimon, Alex B. Nielsen, Ofek Birnholtz2025 · 1 citationarXiv
Black hole mimickers: from theory to observation2505.09014v1 · Cosimo Bambi, Ramy Brustein, Vitor Cardoso et al.2025 · 0 citationsarXiv
The Science of the Einstein Telescope2503.12263v2 · Adrian Abac, Raul Abramo, Simone Albanesi et al.2025 · 117 citationsJCAP 03 (2026) 081
Search for continuous gravitational waves from known pulsars in the first part of the fourth LIGO-Virgo-KAGRA observing run2501.01495v2 · A. G. Abac, R. Abbott, I. Abouelfettouh et al.2025 · 19 citationsAstrophys.J. 983 (2025) 2, 99
Search for gravitational waves emitted from SN 2023ixf2410.16565v2 · A. G. Abac, R. Abbott, I. Abouelfettouh et al.2024 · 15 citationsApJ 985 183 (2025)
Swift-BAT GUANO follow-up of gravitational-wave triggers in the third LIGO-Virgo-KAGRA observing run2407.12867v2 · Gayathri Raman, Samuele Ronchini, James Delaunay et al.2024 · 2 citationsApJ, Volume 980, 2025, 207
Possible Causes of False General Relativity Violations in Gravitational Wave Observations2405.02197v2 · Anuradha Gupta, K. G. Arun, Enrico Barausse et al.2024 · 59 citationsSciPost Phys. Comm. Rep. 5 (2025)
Constraining parametric deviations from the Kerr spacetime using black hole ringdowns of GW150914 and GW1905212401.06049v2 · Zaryab Ahmed, Shilpa Kastha, Alex B. Nielsen2024 · 0 citationsarXiv
1PN effective binary Lagrangian for the gravity-Kalb-Ramond sector in the conservative regime2312.11322v1 · Vegard Undheim, Alex Bentley Nielsen, Eirik Eik Svanes2023 · 0 citationsGalaxies 2025, 13(4), 79
Multimode Quasinormal Spectrum from a Perturbed Black Hole.38101361 · Capano, Collin D, Cabero, Miriam, Westerweck, Julian et al.2023 · 100 citationsPhysical review letters. 2023;131(22):221402
A gating-and-inpainting perspective on GW150914 ringdown overtone: understanding the data analysis systematics2310.19645v3 · Yi-Fan Wang, Collin D. Capano, Jahed Abedi et al.2023 · 5 citationsPhys. Rev. D 112, 083023, 2025
Spectroscopy for asymmetric binary black hole mergers2309.03121v2 · Jahed Abedi, Collin D. Capano, Shilpa Kastha et al.2023 · 12 citationsarXiv
Estimating False Alarm Rates of Sub-Dominant Quasi-normal Modes in GW1905212209.00640v4 · Collin D. Capano, Jahed Abedi, Shilpa Kastha et al.2022 · 22 citationsarXiv
Model systematics in time domain tests of binary black hole evolution2111.13664v1 · Shilpa Kastha, Collin D. Capano, Julian Westerweck et al.2021 · 17 citationsarXiv
Testing GR with the Gravitational Wave Inspiral Signal GW1708172105.02191v1 · Andrey A. Shoom, Pawan K. Gupta, Badri Krishnan et al.2021 · 20 citationsarXiv
Constraining Unmodeled Physics with Compact Binary Mergers from GWTC-12008.06436v3 · Bruce Edelman, Francisco J. Rivera-Paleo, J.D. Merritt et al.2020 · 23 citationsPhys. Rev. D 103, 042004 (2021)
The next decade of black hole spectroscopy1911.01361v2 · Miriam Cabero, Julian Westerweck, Collin D. Capano et al.2019 · 71 citationsPhys. Rev. D 101, 064044 (2020)
Tests of General Relativity with GW170817.31386391 · Abbott, B P, Abbott, R, Abbott, T D et al.2019 · 628 citationsPhysical review letters. 2019;123(1):011102
Tests of General Relativity with the Binary Black Hole Signals from the LIGO-Virgo Catalog GWTC-11903.04467v3 · B. P. Abbott, R. Abbott, T. D. Abbott et al.2019 · 816 citationsPhys. Rev. D 100, 104036 (2019)
Constraining the p-Mode-g-Mode Tidal Instability with GW170817.30822067 · Abbott, B P, Abbott, R, Abbott, T D et al.2019 · 49 citationsPhysical review letters. 2019;122(6):061104
Search for Subsolar-Mass Ultracompact Binaries in Advanced LIGO's First Observing Run.30576173 · Abbott, B P, Abbott, R, Abbott, T D et al.2018 · 120 citationsPhysical review letters. 2018;121(23):231103
GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs1811.12907v3 · B. P. Abbott, R. Abbott, T. D. Abbott et al.2018 · 3,519 citationsPhys. Rev. X 9, 031040 (2019)
Parameter estimation for black hole echo signals and their statistical significance1811.04904v2 · Alex B. Nielsen, Collin D. Capano, Ofek Birnholtz et al.2018 · 64 citationsPhys. Rev. D 99, 104012 (2019)
Investigating the noise residuals around the gravitational wave event GW1509141811.04071v3 · Alex B. Nielsen, Alexander H. Nitz, Collin D. Capano et al.2018 · 17 citationsarXiv
1-OGC: The first open gravitational-wave catalog of binary mergers from analysis of public Advanced LIGO data1811.01921v3 · Alexander H. Nitz, Collin Capano, Alex B. Nielsen et al.2018 · 203 citationsarXiv
GW170817: Measurements of Neutron Star Radii and Equation of State.30387654 · Abbott, B P, Abbott, R, Abbott, T D et al.2018 · 2,444 citationsPhysical review letters. 2018;121(16):161101
A Fermi Gamma-ray Burst Monitor Search for Electromagnetic Signals Coincident with Gravitational-Wave Candidates in Advanced LIGO's First Observing Run1810.02764v2 · The Fermi Gamma-ray Burst Monitor Team, E. Burns, A. Goldstein et al.2018 · 44 citationsarXiv
Search for Tensor, Vector, and Scalar Polarizations in the Stochastic Gravitational-Wave Background.29864331 · Abbott, B P, Abbott, R, Abbott, T D et al.2018 · 126 citationsPhysical review letters. 2018;120(20):201102
GW170817: Implications for the Stochastic Gravitational-Wave Background from Compact Binary Coalescences.29547330 · Abbott, B P, Abbott, R, Abbott, T D et al.2018 · 238 citationsPhysical review letters. 2018;120(9):091101
Dynamics of marginally trapped surfaces in a binary black hole merger: Growth and approach to equilibrium1801.07048v2 · Anshu Gupta, Badri Krishnan, Alex B. Nielsen et al.2018 · 51 citationsPhys. Rev. D 97, 084028 (2018)
First Search for Nontensorial Gravitational Waves from Known Pulsars.29400511 · Abbott, B P, Abbott, R, Abbott, T D et al.2018 · 111 citationsPhysical review letters. 2018;120(3):031104
Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA.29725242 · Abbott, B P, Abbott, R, Abbott, T D et al.2024 · 1,134 citationsLiving reviews in relativity. 2018;21(1):3
Low significance of evidence for black hole echoes in gravitational wave data1712.09966v3 · Julian Westerweck, Alex B. Nielsen, Ofek Fischer-Birnholtz et al.2017 · 169 citationsPhys. Rev. D 97, 124037 (2018)
Reducing the number of templates for aligned-spin compact binary coalescence gravitational wave searches using metric-agnostic template nudging1712.07869v2 · Nathaniel Indik, Henning Fehrmann, Franz Harke et al.2017 · 7 citationsPhys. Rev. D 97, 124008 (2018)
Constraints on cosmic strings using data from the first Advanced LIGO observing run1712.01168v2 · B. P. Abbott, R. Abbott, T. D. Abbott et al.2017 · 174 citationsPhys. Rev. D 97, 102002 (2018)
Observational tests of the black hole area increase law1711.09073v2 · Miriam Cabero, Collin D. Capano, Ofek Fischer-Birnholtz et al.2017 · 64 citationsPhys. Rev. D 97, 124069 (2018)
All-sky search for long-duration gravitational wave transients in the first Advanced LIGO observing run1711.06843v1 · B. P. Abbott, R. Abbott, T. D. Abbott et al.2017 · 33 citationsarXiv
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