Photometric masses of early-type lens galaxies (Grillo+, 2009)

Computer Science

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Gravitational Lensing, Redshifts, Photometry: Sdss

Scientific paper

We fit the lens spectral energy distributions (SEDs) consisting of ugriz magnitudes with a three-parameter grid (age, star-formation timescale, and photometric mass) of Bruzual & Charlot's (2003MNRAS.344.1000B) and Maraston's (2005MNRAS.362..799M) composite stellar-population models, computed by adopting solar metallicity and various initial mass functions (IMFs). We also utilize the best-fit parameters derived from the lens models of the total projected mass enclosed within the disk defined by the Einstein radius of each system.
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