Výsledky vyhledávání - "Graeme Candlish"

Hydrodynamical structure formation in Milgromian cosmology

Autor: Nils Wittenburg, Pavel Kroupa, Indranil Banik, Graeme Candlish, Nick Samaras

We present the first hydrodynamical cosmological simulations in the $\nu$HDM framework based on Milgromian dynamics (MOND) with light (11~eV) sterile neutrinos. $\nu$HDM can explain the expansion history, CMB anisotropies, and galaxy cluster dynamics

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3D hydrodynamic simulations for the formation of the Local Group satellite planes

Autor: Indranil Banik, Ingo Thies, Roy Truelove, Graeme Candlish, Benoit Famaey, Marcel S Pawlowski, Rodrigo Ibata, Pavel Kroupa

The existence of mutually correlated thin and rotating planes of satellite galaxies around both the Milky Way (MW) and Andromeda (M31) calls for an explanation. Previous work in Milgromian dynamics (MOND) indicated that a past MW-M31 encounter might

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90704f6816a73cea7efcd12fcce6d148
http://arxiv.org/abs/2204.09687

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The Global Stability of M33 in MOND

Autor: Indranil Banik, Ingo Thies, Pavel Kroupa, Benoit Famaey, Rodrigo A. Ibata, Graeme Candlish

Publikováno v: The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2020, 905 (2), pp.135. ⟨10.3847/1538-4357/abc623⟩
Astrophys.J.
Astrophys.J., 2020, 905 (2), pp.135. ⟨10.3847/1538-4357/abc623⟩

The dynamical stability of disk galaxies is sensitive to whether their anomalous rotation curves are caused by dark matter halos or Milgromian Dynamics (MOND). We investigate this by setting up a MOND model of M33. We first simulate it in isolation f

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Leavers and remainers: Galaxies split by group-exit

Autor: Rory Smith, Graeme Candlish, Nelvy Choque-Challapa, Reynier Peletier, Jihye Shin

Publikováno v: Monthly Notices of the Royal Astronomical Society, 490(3), 3654-3666. Oxford University Press
Monthly Notices of the Royal Astronomical Society

The disruption of substructure in galaxy clusters likely plays an important role in shaping the cluster population as a significant fraction of cluster galaxies today have spent time in a previous host system, and thus may have been pre-processed. On

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7d44d7a4415bb4226860c17dc268d88
https://research.rug.nl/en/publications/a0bf778d-ad09-4666-8474-a5fd034b9d39

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Consequences of the external field effect for MOND disk galaxies in galaxy clusters

Autor: Rory Smith, Arianna Cortesi, Yara L Jaffé, Graeme Candlish

Galaxies within galaxy clusters are known to be subject to a wide variety of environmental effects, both gravitational and hydrodynamical. In this study, we examine the purely gravitational interaction of idealised galaxy models falling into a galaxy

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RAyMOND: an N-body and hydrodynamics code for MOND

Autor: Michael Fellhauer, Rory Smith, Graeme Candlish

Publikováno v: Monthly Notices of the Royal Astronomical Society
Artículos CONICYT
CONICYT Chile
instacron:CONICYT

The LCDM concordance cosmological model is supported by a wealth of observational evidence, particularly on large scales. At galactic scales, however, the model is poorly constrained and recent observations suggest a more complex behaviour in the dar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11ae8157475f027dabe17c0b88c0b7ab
https://doi.org/10.1093/mnras/stu2158

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Could Segue 1 be a destroyed star cluster? - a dynamical perspective

Autor: Michael Fellhauer, Rory Smith, N. Choque, M. Blaña, Juan P. Farias, J. Dabringhausen, Graeme Candlish, R. Domínguez

We attempt to find a progenitor for the ultra-faint object Segue 1 under the assumption that it formed as a dark matter free star cluster in the past. We look for orbits, using the elongation of Segue 1 on the sky as a tracer of its path. Those orbit

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Ursa major ii - reproducing the observed properties through tidal disruption

Autor: Rory Smith, Michael Fellhauer, Juan Pablo Farias, Matias Blaña, Graeme Candlish, Radoslaw Wojtak

Publikováno v: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Monthly Notices of the Royal Astronomical Society

Recent deep photometry of the dwarf spheroidal Ursa Major II's morphology, and spectroscopy of individual stars, have provided a number of new constraints on its properties. With a velocity dispersion $\sim$6 km s$^{-1}$, and under the assumption tha

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