Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Ghafourian, Neda"'
Autor:
Nagesh, Srikanth T., Kroupa, Pavel, Banik, Indranil, Famaey, Benoit, Ghafourian, Neda, Roshan, Mahmood, Thies, Ingo, Zhao, Hongsheng, Wittenburg, Nils
We conduct hydrodynamical MOND simulations of isolated disc galaxies over the stellar mass range $M_{\star}/M_\odot = 10^7 - 10^{11}$ using the adaptive mesh refinement code \textsc{phantom of ramses} (\textsc{por}), an adaptation of the \textsc{rams
Externí odkaz:
http://arxiv.org/abs/2212.07447
Autor:
Roshan, Mahmood, Ghafourian, Neda, Kashfi, Tahere, Banik, Indranil, Haslbauer, Moritz, Cuomo, Virginia, Famaey, Benoit, Kroupa, Pavel
Publikováno v:
MNRAS, 508, 926 - 939 (2021)
Many observed disc galaxies harbour a central bar. In the standard cosmological paradigm, galactic bars should be slowed down by dynamical friction from the dark matter halo. This friction depends on the galaxy's physical properties in a complex way,
Externí odkaz:
http://arxiv.org/abs/2106.10304
Autor:
Roshan, Mahmood, Banik, Indranil, Ghafourian, Neda, Thies, Ingo, Famaey, Benoit, Asencio, Elena, Kroupa, Pavel
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 503, Issue 2, May 2021, Pages 2833-2860
When bars form within galaxy formation simulations in the standard cosmological context, dynamical friction with dark matter (DM) causes them to rotate rather slowly. However, almost all observed galactic bars are fast in terms of the ratio between c
Externí odkaz:
http://arxiv.org/abs/2103.01794
Publikováno v:
The Astrophysical Journal, Volume 895, Issue 1, id.13, May 2020
The evolution of disk galaxies in modified gravity is studied by using high-resolution N-body simulations. More specifically, we use the weak field limit of two modified gravity theories, i.e., nonlocal gravity (NLG) and scalar-tensor-vector gravity
Externí odkaz:
http://arxiv.org/abs/2004.10104
Autor:
Shenavar, Hossein, Ghafourian, Neda
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 475, Issue 4, 21 April 2018, Pages 5603-5617
The local stability of stellar and fluid discs, under a new modified dynamical model, is surveyed by using WKB approximation. The exact form of the modified Toomre criterion is derived for both types of systems and it is shown that the new model is,
Externí odkaz:
http://arxiv.org/abs/1902.01555
Autor:
Ghafourian, Neda, Roshan, Mahmood
Publikováno v:
MNRAS (2017) 468 (4): 4450-4464
We study the global stability of a self-gravitating disk in the context of Modified Gravity (MOG) using N-body simulations. This theory is a relativistic scalar-tensor-vector theory of gravity and presented to address the dark matter problem. In the
Externí odkaz:
http://arxiv.org/abs/1703.02718
Akademický článek
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Autor:
Ghafourian, Neda1 (AUTHOR) n.ghafourian@mail.um.ac.ir, Roshan, Mahmood1 (AUTHOR), Valluri, Monica1 (AUTHOR) n.ghafourian@mail.um.ac.ir, Sellwood, J. A.1 (AUTHOR)
Publikováno v:
Proceedings of the International Astronomical Union. Jun2020, Vol. 14 Issue s353, p152-153. 2p.
Akademický článek
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