The velocity distribution of SDSS satellites in MOND

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dc.creatorAngus, Garry
dc.creatorFamaey, Benoit
dc.creatorTiret, Olivier
dc.creatorCombes, Francoise
dc.creatorZhao, HongSheng
dc.date2007-09-12
dc.date.accessioned2026-07-07T08:51:02Z
dc.date.available2026-07-07T08:51:02Z
dc.descriptionThe recent SDSS measured velocity distribution of satellite galaxies has been modelled in the context of MOND. We show that even when the extra constraint of adhering to the projected satellite number density profile is added, the two line of sight (los) velocity dispersion profiles presented in Klypin & Prada (2007) can be matched simply with a radially varying anisotropy. Interestingly, the anisotropies required to fit the los velocity dispersions are remarkably similar to the anisotropies generated by dissipationless collapse simulations in MOND. The mass-to-light ratios of the two host galaxies used are sensible and positivity of the distribution function is satisfied.
dc.description5 pages, 1 figure, accepted for publication in MNRAS Letters
dc.identifierhttps://arxiv.org/abs/0709.1966
dc.identifierhttp://arxiv.org/abs/0709.1966
dc.identifier2008, MNRAS, 383, L1
dc.identifierdoi:10.1111/j.1745-3933.2007.00393.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/144804
dc.subjectAstrophysics
dc.titleThe velocity distribution of SDSS satellites in MOND
dc.typetext

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