SIMBAD references

2005MNRAS.363..769S - Mon. Not. R. Astron. Soc., 363, 769-800 (2005/November-1)

Dark matter in early-type galaxies: dynamical modelling of IC 1459, IC 3370, NGC 3379 and NGC 4105.


Abstract (from CDS):

We analyse long-slit spectra of four early-type galaxies which extend from ∼1 to 3 effective radii: IC 1459; IC 3370; NGC 3379 and NGC 4105. We have extracted the full line-of-sight velocity distribution (in the case of NGC 3379 we also used data from the literature), which we model using the two-integral approach. Using two-integral modelling, we find no strong evidence for dark haloes, but the fits suggest that three-integral modelling is necessary. We also find that the inferred constant mass-to-light ratio in all the four cases is typical for early-type galaxies. Finally, we also discuss the constraints on the mass-to-light ratio, which can be obtained using X-ray haloes in the case of IC 1459, NGC 3379 and NGC 4105, and compare the estimated values with the predictions from the dynamical modelling.

Abstract Copyright: 2005 RAS

Journal keyword(s): galaxies: elliptical and lenticular - galaxies: kinematics and dynamics - galaxies: ISM - X-rays - galaxies: structure - dark matter

VizieR on-line data: <Available at CDS (J/MNRAS/363/769): tables A1 to A6, B1 to B7>

Simbad objects: 34

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