Results 21 to 30 of about 28,835 (313)
Flip-Flopping Binary Black Holes
Physical Review Letters, 2015 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
openaire +4 more sources
Black hole spins in coalescing binary black holes [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 18 pages, 11 figures, accepted to MNRAS after taking into account star-formation rate history for comparison of the calculated BH-BH coalescences with observed systems, LIGO/Virgo GWTC-1 sources ...
K A Postnov, A G Kuranov
openaire +3 more sources
LIGO GW150914 and GW151226 gravitational wave detection and generalized gravitation theory (MOG)
Physics Letters B, 2016 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
doaj +1 more source
The LISA-Taiji Network: Precision Localization of Coalescing Massive Black Hole Binaries
Research, 2021 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
doaj +1 more source
, 2006 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
openaire +2 more sources
Integral Fluxes of Neutrinos and Gamma-Rays Emitted from Neighboring X-ray Binaries
Universe, 2023 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
doaj +1 more source
Can We Prescribe the Physical Parameters of Multiple Black Holes?
Mathematics, 2021 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
doaj +1 more source
Tracing Black Hole Signatures in Several Black Hole Candidates Based on Their X-Ray Spectral Evolution [PDF]
EPJ Web of Conferences, 2020 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
doaj +1 more source
Inventory of black hole binaries [PDF]
Symposium - International Astronomical Union, 2003 A small group of X-ray binaries currently provides the best evidence for the existence of stellar-mass black holes. These objects are interacting binary systems where the X-rays arise from accretion of material onto a compact object (i.e., an object with a radius of less than a few hundred km). In some favourable cases, optical studies of the companion
openaire +2 more sources
Black hole binaries and microquasars [PDF]
Frontiers of Physics, 2013 33 pages, 40 figures and 3 tables. Invited review article in a special issue of the journal "Frontiers of Physics", dedicated to the topic of "High energy astrophysics". Eds.
openaire +2 more sources