Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-48324
Cardone, V F; Angus, G; Diaferio, A; Tortora, C; Molinaro, R (2011). The modified Newtonian dynamics Fundamental Plane. Monthly Notices of the Royal Astronomical Society, 412(4):2617-2630.
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Modified Newtonian dynamics (MOND) has been shown to be able to fit spiral galaxy rotation curves as well as giving a theoretical foundation for empirically determined scaling relations, such as the Tully-Fisher law, without the need for a dark matter halo. As a complementary analysis, one should investigate whether MOND can also reproduce the dynamics of early-type galaxies (ETGs) without dark matter. As a first step, we here show that MOND can indeed fit the observed central velocity dispersion σ0 of a large sample of ETGs assuming a simple MOND interpolating functions and constant anisotropy. We also show that, under some assumptions on the luminosity dependence of the Sérsic n parameter and the stellar mass-to-light ratio (M/L), MOND predicts a Fundamental Plane for ETGs: a loglinear relation among the effective radius Reff, σ0 and the mean effective intensity <Ie>. However, we predict a tilt between the observed and the MOND Fundamental Planes.
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|Other titles:||The MOND Fundamental Plane|
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Institute for Computational Science|
|Deposited On:||18 Feb 2012 20:14|
|Last Modified:||04 Dec 2013 11:15|
|ISSN:||0035-8711 (P) 1365-2966 (E)|
|Additional Information:||The definitive version is available at www3.interscience.wiley.com|
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