Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Martin Kološ"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 1, Pp 1-13 (2024)
Abstract String loop vibrations in a central plane of a Schwarzschild black hole are investigated for various string equations of state. We discuss string loop stability and derive frequencies of vibrational modes. Using the vibrating string loop mod
Externí odkaz:
https://doaj.org/article/24af16c6b862471da4f2f1fcc74db838
Publikováno v:
Universe, Vol 10, Iss 6, p 249 (2024)
In a recent study devoted to the influence of electromagnetic radiation reaction on the motion of radiating charged particles in magnetized black hole spacetimes the authors claim that the tail term cannot be neglected in the complete DeWitt–Brehme
Externí odkaz:
https://doaj.org/article/3a60fe3b136f426299b5760d994a6f19
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 4, Pp 1-23 (2023)
Abstract The study of charged particle dynamics in the combined gravitational and magnetic field can provide important theoretical insight into astrophysical processes around black holes. In this paper, we explore the charged particle dynamics in par
Externí odkaz:
https://doaj.org/article/0f99f74dda2744faa6ffdf90e2d09b88
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 5, Pp 1-22 (2022)
Abstract We are fitting dynamics of electrically neutral hot-spot orbiting around Sagittarius A* (Sgr A*) source in Galactic center, represented by various modifications of the standard Kerr black hole (BH), to the three flares observed by the GRAVIT
Externí odkaz:
https://doaj.org/article/b97f8255ccc54ba49bf5c03f1707b5c8
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 55 (2024)
In this article, we explore the dynamics of accretion structures encircling spherically symmetric black holes, comparing three accretion disk models with distinct angular momentum profiles: (i) the geometrically thin Keplerian disk, (ii) the Fishbone
Externí odkaz:
https://doaj.org/article/0f7a38655c9e4a87927f65a6d29d80ef
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-14 (2021)
Abstract The study of the quasi-periodic oscillations (QPOs) of X-ray flux observed in the stellar-mass black hole (BH) binaries or quasars can provide a powerful tool for testing the phenomena occurring in strong gravity regime. We thus fit the data
Externí odkaz:
https://doaj.org/article/07dbd0c0250a4ce1912831ab2d634929
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 2, Pp 1-12 (2020)
Abstract The study of the quasi-periodic oscillations (QPOs) of X-ray flux observed in the stellar-mass black hole (BH) binaries can provide a powerful tool for testing the phenomena occurring in strong gravity regime. We thus present and apply to th
Externí odkaz:
https://doaj.org/article/cdccc1e0cfbf49fbbb1590aceae6ab0c
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 6, Pp 1-21 (2019)
Abstract We study behaviour of ionized region of a Keplerian disk orbiting a Schwarzschild black hole immersed in an asymptotically uniform magnetic field. In dependence on the magnetic parameter $${\mathcal {B}}$$ B , and inclination angle $$\theta
Externí odkaz:
https://doaj.org/article/d4a729f533c348ae9d80fb840fd9071a
Publikováno v:
Symmetry, Vol 14, Iss 3, p 482 (2022)
Rotating black holes (BHs) are likely the largest energy reservoirs in the Universe as predicted by BH thermodynamics, while cosmic rays (CRs) are the most energetic among particles detected on Earth. Magnetic fields surrounding BHs combined with str
Externí odkaz:
https://doaj.org/article/e991ee9e375944fdaf095eff1f5a45a9
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 3, Pp 1-19 (2018)
Abstract We study the motion of current carrying charged string loops in the Reissner–Nordström black hole background combining the gravitational and electromagnetic field. Introducing new electromagnetic interaction between central charge and cha
Externí odkaz:
https://doaj.org/article/1bb120b9501e4baa8c9a9bf8a6fb7caa