Zobrazeno 1 - 10
of 772
pro vyhledávání: '"NAKANO, Hiroyuki"'
We present various post-Newtonian (PN) models for the phase evolution of compact objects moving along quasi-spherical orbits in Kerr spacetime derived by using the 12PN analytic formulas of the energy, angular momentum and their averaged rates of cha
Externí odkaz:
http://arxiv.org/abs/2411.09147
In the post-Newtonian (PN) expansion, we extend the determination of quasicircular orbital parameters to be used by subsequent full numerical simulations to the 3.5PN order, and find that this leads to lower eccentricities, $e$, than with our previou
Externí odkaz:
http://arxiv.org/abs/2406.11564
Autor:
Ronchini, Samuele, Bala, Suman, Wood, Joshua, Delaunay, James, Dichiara, Simone, Kennea, Jamie A., Parsotan, Tyler, Raman, Gayathri, Tohuvavohu, Aaron, Adhikari, Naresh, Bhat, Narayana P., Biscoveanu, Sylvia, Bissaldi, Elisabetta, Burns, Eric, Campana, Sergio, Chandra, Koustav, Cleveland, William H., Dalessi, Sarah, De Pasquale, Massimiliano, García-Bellido, Juan, Gasbarra, Claudio, Giles, Misty M., Gupta, Ish, Hartmann, Dieter, Hristov, Boyan A., Hui, Michelle C., Kashyap, Rahul, Kocevski, Daniel, Mailyan, Bagrat, Malacaria, Christian, Nakano, Hiroyuki, Principe, Giacomo, Roberts, Oliver J., Sathyaprakash, Bangalore, Shao, Lijing, Troja, Eleonora, Veres, Péter, Wilson-Hodge, Colleen A.
GW230529 is the first compact binary coalescence detected by the LIGO-Virgo-KAGRA collaboration with at least one component mass confidently in the lower mass-gap, corresponding to the range 3-5$M_{\odot}$. If interpreted as a neutron star-black hole
Externí odkaz:
http://arxiv.org/abs/2405.10752
Autor:
Uchikata, Nami, Narikawa, Tatsuya, Nakano, Hiroyuki, Sago, Norichika, Tagoshi, Hideyuki, Tanaka, Takahiro
Gravitational wave echo signals have been proposed as evidence for the modification of the spacetime structure near the classical event horizon. These signals are expected to occur after the mergers of compact binaries as a sequence of weak pulse-lik
Externí odkaz:
http://arxiv.org/abs/2309.01894
We focus on gravitational-wave events of binary black-hole mergers up to the third observing run with the minimum false alarm rate smaller than $10^{-5}\,{\rm yr}^{-1}$. These events tell us that the mass ratio of two black holes follows $m_2/m_1=0.7
Externí odkaz:
http://arxiv.org/abs/2307.14042
The tidal response of compact objects in an inspiraling binary system is measured by a set of tidal Love and dissipation numbers imprinted in the gravitational waveforms. While a four-dimensional black hole in vacuum within General Relativity has van
Externí odkaz:
http://arxiv.org/abs/2304.04551
We study the underlying structure of the vanishing of the Love numbers of both Schwarzschild and Kerr black holes in terms of spacetime conformal symmetry in a unified manner for the static spin-$s$ fields. The perturbations can be reduced with the h
Externí odkaz:
http://arxiv.org/abs/2209.10469
We describe and study an instantaneous definition of eccentricity to be applied at the initial moment of full numerical simulations of binary black holes. The method consists of evaluating the eccentricity at the moment of maximum separation of the b
Externí odkaz:
http://arxiv.org/abs/2206.13532
Two neutron star (NS)-black hole (BH) binaries, GW200105 and GW200115 found in the LIGO/Virgo O3b run have smaller BH mass of 6--9\,$M_{\odot}$ which is consistent with Population I and II origin. Our population synthesis simulations using $10^6$ Pop
Externí odkaz:
http://arxiv.org/abs/2201.06713
Autor:
Isoyama, Soichiro, Fujita, Ryuichi, Chua, Alvin J. K., Nakano, Hiroyuki, Pound, Adam, Sago, Norichika
Publikováno v:
Phys. Rev. Lett. 128, 231101 (2022)
Scientific analysis for the gravitational-wave detector LISA will require theoretical waveforms from extreme-mass-ratio inspirals (EMRIs) that extensively cover all possible orbital and spin configurations around astrophysical Kerr black holes. Howev
Externí odkaz:
http://arxiv.org/abs/2111.05288