
Модели аккреции в модифицированных теориях гравитации

Описание НИОКР
R_{\mu\nu} - \dfrac{R}{2}g_{\mu\nu} = \dfrac{8\pi G}{c^4}T_{\mu\nu}
R_{\mu\nu} - \dfrac{R}{2}g_{\mu\nu} + \Lambda g_{\mu\nu} = \dfrac{8\pi G}{c^4}T_{\mu\nu}
f\left(R_{\mu\nu}\right) - \dfrac{f(R)}{2}g_{\mu\nu} = \dfrac{8\pi G}{c^4}T_{\mu\nu}
Способы решения
1. Космологическая постоянная:
2. Модифицирование уравнений:

Имеющийся задел
- Artyom V. Astashenok, “Effective Dark Energy Models and Dark Energy Models with Bounce in frames of F(T) Gravity”, Astrophys. Space Sci. 381, 77 (2014) arXiv:1308.0581 [gr-qc].
- Artyom V. Astashenok, Salvatore Capozziello, Sergey D. Odintsov, “Further stable neutron star models from f(R) gravity”, JCAP 12, 040 (2013) arXiv:1309.1978 [gr-qc].
- Artyom V. Astashenok, Salvatore Capozziello, Sergey D. Odintsov, “Maximal neutron star mass and the resolution of hyperon puzzle in modified gravity”, Phys. Rev. D 89, 103509 (2014) arXiv:1401.4546.
- A.V. Astashenok, “Neutron star models in frames of f (R) gravity”, AIP Conf. Proc. 1606, 99 (2014).
- Artyom V. Astashenok, Salvatore Capozziello, Sergey D. Odintsov, “Magnetic neutron star from modified gravity”, Astrophys. Space Sci. 355, 333 (2015) arXiv: 1405.6663 [gr-qc].
- Artyom V. Astashenok, Salvatore Capozziello, Sergey D. Odintsov, “Extreme neutron stars from Extended Theories of Gravity”, JCAP 1501, 001 (2015) arXiv:1408.3856 [gr-qc].
- A.V. Astashenok, S. Capozziello, S.D. Odintsov, “Nonperturbative models of quark stars in f(R) gravity”, Phys. Lett. B 742, 160 (2015) arXiv:1412.5453 [gr-qc].
- A.V. Astashenok, V. Oikonomu, S.D. Odintsov, “Modified Gauss–Bonnet gravity with the Lagrange multiplier constraint as mimetic theory”, Class. Quant. Grav. 32, 18 (2015) arXiv:1504.04861 [gr-qc].
- A.V. Astashenok, S.D. Odintsov, “From neutron to quark stars in mimetic gravity”, Phys. Rev. D 94, 063008 (2016) arXiv:1512.07279 [gr-qc].
- A.V. Astashenok, “Neutron and quark stars in f(R) gravity”, Int. J. Mod. Phys.: Conf. Series 41, 066130 (2016).
- Artyom V. Astashenok, Sergey D. Odintsov, Alvaro de la Cruz-Dombriz, “The realistic models of relativistic stars in f(R) = R+αR2 gravity”, Class. Quant. Grav. 34, 205008 (2017) arXiv:1704.08311 [gr-qc].
- Artyom V. Astashenok, Alexey S. Baigashov, Sergey A. Lapin, “Neutron Stars in frames of R2 gravity and Gravitational Waves”, Int. J. Geom. Meth. Mod. Phys. 16, 1950004 (2018) arXiv:1812.10439 [gr-qc].

Имеющийся задел
- A.V. Astashenok, S.D. Odintsov, “Supermassive Neutron Stars in Axion F(R) Gravity”, MNRAS 493 , 78 (2020) arXiv:2001.08504 [gr-qc].
- A.V. Astashenok, S.D. Odintsov, “Neutron Stars in f(R)-Gravity and Its Extension with a Scalar Axion Field”, Particles 3, 532 (2020) arXiv:2007. 03012 [gr-qc].
- A.V. Astashenok, S.D. Odintsov, “Rotating Neutron Stars in f(R)-Gravity with Axions”, MNRAS 498, 3616 (2020) arXiv:2008.11271 [gr-qc].
- A.V. Astashenok, S. Capozziello, S.D. Odintsov, V.K. Oikonomou, “Extended Gravity Description for the GW190814 Supermassive Neutron Star”, Phys. Lett. B 811, 135910 (2020) arXiv:2008.10884 [gr-qc].
- A.V. Astashenok, S.D. Odintsov, S. Capozziello, V.K. Oikonomou, “Causal Limit of Maximum Static Neutron Star Mass in f(R) Gravity in View of GW190814”, Phys. Lett. B 816, 136222 (2021) arXiv:2103.04144 [gr-qc].
- A.V. Astashenok, S.D. Odintsov, S. Capozziello, V.K. Oikonomou, “Novel Stellar Astrophysics from Extended Gravity”, EPL 134, 59001 (2021) arXiv:2106.01234 [gr-qc].
- A.V. Astashenok, S.D. Odintsov, S. Capozziello, V.K. Oikonomou, “Maximum Baryon Masses for Static Neutron Stars in f(R) Gravity”, EPL 136, 59001 (2021) arXiv:2111.14179 [gr-qc].
- A.V. Astashenok, S.D. Odintsov, V. Oikonomou, “Maximal Masses of White Dwarfs for Polytropes in $R^2$ Gravity and Theoretical Constraints”, Phys. Rev. D 106, 124010 (2022) arXiv:2209.13693 [gr-qc].
- A.V. Astashenok, S.D. Odintsov, V. Oikonomou, “Chandrasekhar limit of white dwarfs mass in modified gravity”, arXiv:2211.14892 [gr-qc].
Подборки библиотек для моделирования аккреции
- MPI-AMRVAC (Adaptive Mesh Refinement - Versatile Advection Code)


Подборки библиотек для моделирования аккреции
- BHAC (The Black Hole Accretion Code)

Подборки библиотек для моделирования аккреции
- AREPO code

НИОКР "Модели аккреции в мод. теориях гравитации" (Четверушкин)
By Astro Group
НИОКР "Модели аккреции в мод. теориях гравитации" (Четверушкин)
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