Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-30855
Leier, D (2009). A lensing view on the Fundamental Plane. Monthly Notices of the Royal Astronomical Society, 400(2):875-886.
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For lensing galaxies, we introduce a formal velocity dispersion σlens , based on enclosed mass and the virial theorem. This is calculated from an ensemble of pixelated lens models, and found to be fairly model-independent. A sample of 18 well-known early-type lensing galaxies and two clusters is found to be consistent with σlens=σobs . Both the early-type lensing galaxies and the clusters can thus be determined as being virialized. In a second step, we calculate the I-band luminosity and the total mass content for the sample of lensing galaxies, which enables us to analyse the mass-to-light relation L∝Mα . We determine α= 0.70 ± 0.08 , excluding constant M/L and consistent with previous studies of the Fundamental Plane. Additionally, we verify that this relation does not extrapolate to clusters, which have a much higher M/L. The sample used for this analysis comprises nine lensing galaxies from the Sloan Lens ACS (Advanced Camera for Surveys) Survey and another nine from the CfA-Arizona Space Telescope LEns Survey as well as the lensing clusters ACO 1689 and ACO 2667.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Institute for Computational Science|
|Uncontrolled Keywords:||gravitational lensing; galaxies: clusters: general; galaxies: elliptical and lenticular; cD; galaxies: fundamental parameters|
|Deposited On:||26 Feb 2010 15:37|
|Last Modified:||27 Nov 2013 19:03|
|Funders:||Swiss National Science Foundation|
|Additional Information:||The attached file is a preprint (accepted version) of an article published in Monthly Notices of the Royal Astronomical Society. The definitive version is available at www3.interscience.wiley.com|
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