Results 1 to 10 of about 2,804,318 (294)
Flip-Flopping Binary Black Holes
We study binary spinning black holes to display the long term individual spin dynamics. We perform a full numerical simulation starting at an initial proper separation of $d\approx25M$ between equal mass holes and evolve them down to merger for nearly 48 orbits, 3 precession cycles, and half of a flip-flop cycle. The simulation lasts for $t=20000M$ and
Lousto, Carlos O., Healy, James
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59 pages, 18 figures; to appear as Chapter 4 in "Compact Stellar X-ray Sources," eds. W.H.G. Lewin and M. van der Klis, Cambridge University Press. This is the final version as submitted for publication. Small corrections and additions have been made to Tables 4.1 and 4.2, Figures 4.13 and 4.17, and at a few places in the ...
McClintock, Jeffrey E. +1 more
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LIGO GW150914 and GW151226 gravitational wave detection and generalized gravitation theory (MOG)
The nature of gravitational waves in a generalized gravitation theory is investigated. The linearized field equations and the metric tensor quadrupole moment power and the decrease in radius of an inspiralling binary system of two compact objects are ...
J.W. Moffat
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The LISA-Taiji Network: Precision Localization of Coalescing Massive Black Hole Binaries
We explore a potential LISA-Taiji network to fast and accurately localize the coalescing massive black hole binaries. For an equal-mass binary located at redshift of 1 with a total intrinsic mass of 105M⊙, the LISA-Taiji network may achieve almost four ...
Wen-Hong Ruan +4 more
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Integral Fluxes of Neutrinos and Gamma-Rays Emitted from Neighboring X-ray Binaries
Astrophysical plasma ejections (jets) are formed and powered by black holes that accrete material from their companion star in binary systems. Black hole X-ray binary systems constitute potential powerful galactic and extragalactic neutrino and gamma-ray
Odysseas Kosmas +2 more
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Tracing Black Hole Signatures in Several Black Hole Candidates Based on Their X-Ray Spectral Evolution [PDF]
Investigation of spectral evolution of four black hole candidates was carried out by using color-color diagram as well as spectral fitting on Swift/XRT data.
Alfarizki Fahmi Iman, Vierdayanti Kiki
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Can We Prescribe the Physical Parameters of Multiple Black Holes?
The parabolic-hyperbolic form of the constraints and superposed Kerr-Schild black holes have already been used to provide a radically new initialization of binary black hole configurations.
István Rácz
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The binary black hole explorer: on-the-fly visualizations of precessing binary black holes [PDF]
Abstract Binary black hole mergers are of great interest to the astrophysics community, not least because of their promise to test general relativity in the highly dynamic, strong field regime. Detections of gravitational waves from these sources by LIGO and Virgo have garnered widespread media and public ...
Vijay Varma, Leo C Stein, Davide Gerosa
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A no-hair test for binary black holes [PDF]
One of the consequences of the black-hole "no-hair" theorem in general relativity (GR) is that gravitational radiation (quasi-normal modes) from a perturbed Kerr black hole is uniquely determined by its mass and spin. Thus, the spectrum of quasi-normal mode frequencies have to be all consistent with the same value of the mass and spin.
Dhanpal, S. +4 more
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The spin distribution of binary black hole mergers contains key information concerning the formation channels of these objects, and the astrophysical environments where they form, evolve and coalesce.
Asad Khan, E.A. Huerta, Arnav Das
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