Results 1 to 10 of about 1,134,125 (370)

The NANOGrav 15 yr Data Set: Constraints on Supermassive Black Hole Binaries from the Gravitational-wave Background [PDF]

open access: yesAstrophysical Journal Letters, 2023
The NANOGrav 15 yr data set shows evidence for the presence of a low-frequency gravitational-wave background (GWB). While many physical processes can source such low-frequency gravitational waves, here we analyze the signal as coming from a population of
G. Agazie   +113 more
semanticscholar   +1 more source

Population of Merging Compact Binaries Inferred Using Gravitational Waves through GWTC-3 [PDF]

open access: yesPhysical Review X, 2021
We report on the population properties of compact binary mergers inferred from gravitational-wave observations of these systems during the first three LIGO-Virgo observing runs.
The Ligo Scientific Collaboration   +499 more
semanticscholar   +1 more source

Manticore: A User-Friendly Symbolic Execution Framework for Binaries and Smart Contracts [PDF]

open access: yesInternational Conference on Automated Software Engineering, 2019
An effective way to maximize code coverage in software tests is through dynamic symbolic execution—a technique that uses constraint solving to systematically explore a program's state space.
Mark Mossberg   +7 more
semanticscholar   +1 more source

Formation and Evolution of Compact-object Binaries in AGN Disks [PDF]

open access: yesAstrophysical Journal, 2019
The astrophysical origin of gravitational wave (GW) events discovered by LIGO/VIRGO remains an outstanding puzzle. In active galactic nuclei (AGNs), compact-object binaries form, evolve, and interact with a dense star cluster and a gas disk. An important
H. Tagawa, Z. Haiman, B. Kocsis
semanticscholar   +1 more source

MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA): BINARIES, PULSATIONS, AND EXPLOSIONS [PDF]

open access: yes, 2015
We substantially update the capabilities of the open-source software instrument Modules for Experiments in Stellar Astrophysics (MESA). MESA can now simultaneously evolve an interacting pair of differentially rotating stars undergoing transfer and loss ...
B. Paxton   +13 more
semanticscholar   +1 more source

X-Ray Properties of Black-Hole Binaries [PDF]

open access: yes, 2006
We review the properties and behavior of 20 X-ray binaries that contain a dynamically-confirmed black hole, 17 of which are transient systems.
R. Remillard, J. McClintock
semanticscholar   +1 more source

Merger and Mass Ejection of Neutron Star Binaries [PDF]

open access: yesAnnual Review of Nuclear and Particle Science, 2019
Mergers of binary neutron stars and black hole–neutron star binaries are among the most promising sources for ground-based gravitational-wave (GW) detectors and are also high-energy astrophysical phenomena, as illustrated by the observations of GWs and ...
M. Shibata, K. Hotokezaka
semanticscholar   +1 more source

Equilibrium Eccentricity of Accreting Binaries [PDF]

open access: yes, 2020
Using high-resolution hydrodynamics simulations, we show that equal-mass binaries accreting from a circumbinary disk evolve toward an orbital eccentricity of e ≃ 0.45, unless they are initialized on a nearly circular orbit with e ≲ 0.08, in which case ...
J. Zrake   +3 more
semanticscholar   +1 more source

On Variation Mechanisms in Recurrent Nova IM Normae

open access: yesGalaxies, 2022
Light curves by Woudt and Warner (WW) of recurrent nova IM Nor show eclipse-like dips that they saw as too wide for eclipses alone, and interpreted as mainly a reflection effect due to irradiation of the companion (mass donor) star with some amplitude ...
R. E. Wilson
doaj   +1 more source

Merging black hole binaries with the SEVN code [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
Studying the formation and evolution of black hole binaries (BHBs) is essential for the interpretation of current and forthcoming gravitational wave (GW) detections.
M. Spera   +5 more
semanticscholar   +1 more source

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