Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Angus, Garry W."'
The Andromeda galaxy is observed to have a system of two large dwarf ellipticals and ~13 smaller satellite galaxies that are currently co-rotating in a thin plane, in addition to 2 counter-rotating satellite galaxies. We explored the consistency of t
Externí odkaz:
http://arxiv.org/abs/1608.03763
The DiskMass survey recently provided measurements of the vertical velocity dispersions of disk stars in a sample of nearly face-on galaxies. By setting the disk scale-heights to be equal to those of edge-on galaxies with similar scale-lengths, it wa
Externí odkaz:
http://arxiv.org/abs/1510.05150
Autor:
Angus, Garry W., Gentile, Gianfranco, Swaters, Robert A., Famaey, Benoit, Diaferio, Antonaldo, McGaugh, Stacy S., van der Heyden, Kurt J.
This article explores the agreement between the predictions of Modified Newtonian Dynamics (MOND) and the rotation curves and stellar velocity dispersion profiles measured by the DiskMass Survey. A bulge-disk decomposition was made for each of the th
Externí odkaz:
http://arxiv.org/abs/1505.05522
In this article we continue to test cosmological models centred on Modified Newtonian Dynamics (MOND) with light sterile neutrinos, which could in principle be a way to solve the fine-tuning problems of the standard model on galaxy scales while prese
Externí odkaz:
http://arxiv.org/abs/1407.1207
Autor:
Angus, Garry W., Gentile, Gianfranco, Diaferio, Antonaldo, Famaey, Benoit, van der Heyden, Kurt J.
The classical dwarf spheroidals (dSphs) provide a critical test for Modified Newtonian Dynamics (MOND) because they are observable satellite galactic systems with low internal accelerations and low, but periodically varying, external acceleration. Th
Externí odkaz:
http://arxiv.org/abs/1403.4119
We use our Modified Newtonian Dynamics (MOND) cosmological particle-mesh N-body code to investigate the feasibility of structure formation in a framework involving MOND and light sterile neutrinos in the mass range 11 - 300 eV: always assuming that \
Externí odkaz:
http://arxiv.org/abs/1309.6094
Publikováno v:
2012, A&A, 543, 76
The bulge dominated galaxy NGC 7814 provides one of the strongest dynamical tests possible for Modified Newtonian Dynamics (MOND). Spitzer 3.6 micron photometry fixes the bulge parameterisation and strongly constrains the properties of the sub-domina
Externí odkaz:
http://arxiv.org/abs/1303.0995
Autor:
Diaferio, Antonaldo, Angus, Garry W.
General Relativity is able to describe the dynamics of galaxies and larger cosmic structures only if most of the matter in the Universe is dark, namely it does not emit any electromagnetic radiation. Intriguingly, on the scale of galaxies, there is s
Externí odkaz:
http://arxiv.org/abs/1206.6231
Autor:
Angus, Garry W., van der Heyden, Kurt, Famaey, Benoit, Gentile, Gianfranco, McGaugh, Stacy S., de Blok, W. J. G.
Here we present a new particle-mesh galactic N-body code that uses the full multigrid algorithm for solving the modified Poisson equation of the Quasi Linear formulation of Modified Newtonian Dynamics (QUMOND). A novel approach for handling the bound
Externí odkaz:
http://arxiv.org/abs/1201.3185
The highly organised distribution of satellite galaxies surrounding the Milky Way is a serious challenge to the concordance cosmological model. Perhaps the only remaining solution, in this framework, is that the dwarf satellite galaxies fall into the
Externí odkaz:
http://arxiv.org/abs/1108.3697