Zobrazeno 1 - 10
of 150
pro vyhledávání: '"Samsing, Johan"'
Autor:
Zwick, Lorenz, Tiede, Christopher, Trani, Alessandro A., Derdzinski, Andrea, Haiman, Zoltan, D'Orazio, Daniel J., Samsing, Johan
We study the gravitational wave (GW) emission of sources perturbed by periodic dynamical forces which do not cause secular evolution in the orbital elements. We construct a corresponding post-Newtonian waveform model and provide estimates for the det
Externí odkaz:
http://arxiv.org/abs/2405.05698
We quantify for the first time the gravitational wave (GW) phase shift appearing in the waveform of eccentric binary black hole (BBH) mergers formed dynamically in three-body systems. For this, we have developed a novel numerical method where we cons
Externí odkaz:
http://arxiv.org/abs/2403.05625
Autor:
Fabj, Gaia, Samsing, Johan
There are indications that stellar-origin black holes (BHs) are efficiently paired up in binary black holes (BBHs) in Active Galactic Nuclei (AGN) disc environments, which can undergo interactions with single BHs in the disc. Such binary-single inter
Externí odkaz:
http://arxiv.org/abs/2402.16948
We compute the Gaseous Dynamical Friction (GDF) force experienced by massive perturbers on elliptical Keplerian orbits. In this paper, we investigate the density wake morphology, dynamical friction force, and secular orbital evolution for massive sin
Externí odkaz:
http://arxiv.org/abs/2401.16166
We study the dynamics of a solar-type star orbiting around a black hole binary (BHB) in a nearly coplanar system. We present a novel effect that can prompt a growth and significant oscillations of the eccentricity of the stellar orbit when the system
Externí odkaz:
http://arxiv.org/abs/2207.10091
Autor:
Hellström, Lucas, Askar, Abbas, Trani, Alessandro A., Giersz, Mirek, Church, Ross P., Samsing, Johan
In the cores of dense stellar clusters, close gravitational encounters between binary and single stars can frequently occur. Using the Tsunami code, we computed the outcome of a large number of binary-single interactions involving two black holes (BH
Externí odkaz:
http://arxiv.org/abs/2203.00034
The LIGO-Virgo-KAGRA Collaboration recently detected gravitational waves (GWs) from the merger of black-hole-neutron-star (BHNS) binary systems GW200105 and GW200115. No coincident electromagnetic (EM) counterparts were detected. While the mass ratio
Externí odkaz:
http://arxiv.org/abs/2112.01979
Autor:
Tagawa, Hiromichi, Kocsis, Bence, Haiman, Zoltan, Bartos, Imre, Omukai, Kazuyuki, Samsing, Johan
The recently discovered gravitational wave sources GW190521 and GW190814 have shown evidence of BH mergers with masses and spins that could be outside of the range expected from isolated stellar evolution. These merging objects could have undergone p
Externí odkaz:
http://arxiv.org/abs/2012.00011
Globular clusters are considered to be likely breeding grounds for compact binary mergers. In this paper, we demonstrate how the gravitational-wave signals produced by compact object mergers can act as tracers of globular cluster formation and evolut
Externí odkaz:
http://arxiv.org/abs/2011.14541
Autor:
Veske, Doğa, Sullivan, Andrew G., Márka, Zsuzsa, Bartos, Imre, Corley, K. Rainer, Samsing, Johan, Buscicchio, Riccardo, Márka, Szabolcs
Publikováno v:
The Astrophysical Journal Letters (2021), Volume 907, Number 2, L48
The origin, environment, and evolution of stellar-mass black hole binaries are still a mystery. One of the proposed binary formation mechanisms is manifest in dynamical interactions between multiple black holes. A resulting framework of these dynamic
Externí odkaz:
http://arxiv.org/abs/2011.06591