Zobrazeno 1 - 10
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pro vyhledávání: '"Grishin, Evgeni"'
Stellar-mass black holes (BHs) embedded in active galactic nuclei (AGN) may be major sources of astrophysical gravitational waves (GWs), contributing both to the observed LIGO-Virgo-KAGRA population of binary BH mergers and to future populations of L
Externí odkaz:
http://arxiv.org/abs/2410.19904
Autor:
Grishin, Evgeni
In hierarchical triple systems, the inner binary is slowly perturbed by a distant companion, giving rise to large-scale oscillations in eccentricity and inclination, known as von-Zeipel-Lidov-Kozai (ZLK) oscillations. Stable systems with a mild hiera
Externí odkaz:
http://arxiv.org/abs/2407.05122
Autor:
Grishin, Evgeni
Irregular satellites (IS) are believed to have been captured during the Solar system's dynamical history and provide clues for the Solar system's formation and evolution. IS occupy a large fraction of the Hill sphere of their host planet and their or
Externí odkaz:
http://arxiv.org/abs/2407.05123
Autor:
Knee, Alan M., McIver, Jess, Naoz, Smadar, Romero-Shaw, Isobel M., Hoang, Bao-Minh, Grishin, Evgeni
Publikováno v:
ApJL 971 L38 (2024)
Stellar-mass black hole binaries (BHBs) in galactic nuclei are gravitationally perturbed by the central supermassive black hole (SMBH) of the host galaxy, potentially inducing strong eccentricity oscillations through the eccentric Kozai-Lidov (EKL) m
Externí odkaz:
http://arxiv.org/abs/2404.12571
Publikováno v:
A&A 686, A32 (2024)
Context: Many barriers prevent dust to form planetesimals via coagulation in protoplanetary discs, such as bouncing, collisional fragmentation or aeolian erosion. Modelling dust and the different phenomena that can alter its evolution is therefore ne
Externí odkaz:
http://arxiv.org/abs/2402.17439
Accretion discs in active galactic nuclei (AGN) foster black hole (BH) formation, growth, and mergers. Stellar mass BHs migrate inwards under the influence of hydrodynamical torques unless they encounter a region where the torque flips sign. At these
Externí odkaz:
http://arxiv.org/abs/2307.07546
The suite of over 60 known planetary debris discs which orbit white dwarfs, along with detections of multiple minor planets in these systems, motivate investigations about the migration properties of planetesimals embedded within the discs. Here, we
Externí odkaz:
http://arxiv.org/abs/2306.07380
Autor:
Perna, Rosalba, Grishin, Evgeni
In addition to a supermassive black hole (SMBH), the central parsec of the Milky Way hosts over a hundred of massive, high velocity young stars whose existence, and organisation of a subset of them in one, or possibly two, mis-aligned disks, is puzzl
Externí odkaz:
http://arxiv.org/abs/2210.07260
The three-body problem is famously chaotic, with no closed-form analytical solutions. However, hierarchical systems of three or more bodies can be stable over indefinite timescales. A system is considered hierarchical if the bodies can be divided int
Externí odkaz:
http://arxiv.org/abs/2208.14005
Triple stars and compact objects are ubiquitously observed in nature. Their long-term evolution is complex; in particular, the von-Zeipel-Lidov-Kozai (ZLK) mechanism can potentially lead to highly eccentric encounters of the inner binary. Such encoun
Externí odkaz:
http://arxiv.org/abs/2205.08703