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- W2133302297 abstract "We investigate scaling relations between the dark matter (DM) halo model parameters for a sample of intermediate-redshift early-type galaxies (ETGs) resorting to a combined analysis of Einstein radii and aperture velocity dispersions. Modelling the dark halo with a Navarro–Frenk–White profile and assuming a Salpeter initial mass function (IMF) to estimate stellar masses, we find that the column density and the Newtonian acceleration within the halo characteristic radius rs and effective radius Reff are not universal quantities, but correlate with the luminosity LV, the stellar mass M★ and the halo mass M200, contrary to recent claims in the literature. We finally discuss a tight correlation among the DM mass MDM(Reff) within the effective radius Reff, the stellar mass M★(Reff) and Reff itself. The slopes of the scaling relations discussed here strongly depend, however, on the DM halo model and the IMF adopted so that these ingredients have to be better constrained in order to draw definitive conclusions on the DM scaling relations for ETGs." @default.
- W2133302297 created "2016-06-24" @default.
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- W2133302297 creator A5052487378 @default.
- W2133302297 date "2010-09-30" @default.
- W2133302297 modified "2023-10-16" @default.
- W2133302297 title "Dark matter scaling relations in intermediate z haloes" @default.
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- W2133302297 doi "https://doi.org/10.1111/j.1365-2966.2010.17398.x" @default.
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