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Stellar-mass microlensing of gravitational waves
Mark H. Y. Cheung, Joseph Gais, Otto A. Hannuksela +1
When gravitational waves pass through the nuclear star clusters of galactic lenses, they may be microlensed by the stars. Such microlensing can cause potentially observable beating…
Constraints on ultralight scalar bosons within black hole spin measurements from LIGO-Virgo's GWTC-2
Ken K. Y. Ng, Salvatore Vitale, Otto A. Hannuksela +1
Clouds of ultralight bosons - such as axions - can form around a rapidly spinning black hole, if the black hole radius is comparable to the bosons' wavelength. The cloud rapidly ex…
Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift During the LIGO-Virgo Run O3a
The LIGO Scientific Collaboration, the Virgo Collaboration, R. Abbott +1250
We search for gravitational-wave transients associated with gamma-ray bursts detected by the Fermi and Swift satellites during the first part of the third observing run of Advanced…
Identification of Lensed Gravitational Waves with Deep Learning
Kyungmin Kim, Joongoo Lee, Robin S. H. Yuen +2
Similar to light, gravitational waves (GWs) can be lensed. Such lensing phenomena can magnify the waves, create multiple images observable as repeated events, and superpose several…
Properties and astrophysical implications of the 150 Msun binary black hole merger GW190521
The LIGO Scientific Collaboration, the Virgo Collaboration, R. Abbott +1254
The gravitational-wave signal GW190521 is consistent with a binary black hole merger source at redshift 0.8 with unusually high component masses, and $6…
GW190521: A Binary Black Hole Merger with a Total Mass of
The LIGO Scientific Collaboration, the Virgo Collaboration, R. Abbott +1253
On May 21, 2019 at 03:02:29 UTC Advanced LIGO and Advanced Virgo observed a short duration gravitational-wave signal, GW190521, with a three-detector network signal-to-noise ratio…
lensingGW: a Python package for lensing of gravitational waves
Giulia Pagano, Otto A. Hannuksela, Tjonnie G. F. Li
Advanced LIGO and Advanced Virgo could observe the first lensed gravitational waves in the coming years, while the future Einstein Telescope could observe hundreds of lensed events…
GW190814: Gravitational Waves from the Coalescence of a 23 M Black Hole with a 2.6 M Compact Object
The LIGO Scientific Collaboration, the Virgo Collaboration, R. Abbott +1254
We report the observation of a compact binary coalescence involving a 22.2 - 24.3 black hole and a compact object with a mass of 2.50 - 2.67 (all measuremen…
Localizing merging black holes with sub-arcsecond precision using gravitational-wave lensing
Otto A. Hannuksela, Thomas E. Collett, Mesut Çalışkan +1
The current gravitational-wave localization methods rely mainly on sources with electromagnetic counterparts. Unfortunately, a binary black hole does not emit light. Due to this, i…
GW190412: Observation of a Binary-Black-Hole Coalescence with Asymmetric Masses
The LIGO Scientific Collaboration, the Virgo Collaboration, R. Abbott +1254
We report the observation of gravitational waves from a binary-black-hole coalescence during the first two weeks of LIGO's and Virgo's third observing run. The signal was recorded…
Lensed or not lensed: Determining lensing magnifications for binary neutron star mergers from a single detection
Peter T. H. Pang, Otto A. Hannuksela, Tim Dietrich +2
Advanced LIGO and Advanced Virgo could observe the first lensed gravitational wave sources in the coming years, while the future Einstein Telescope could observe hundreds of lensed…