Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21346015k&link_type=abstract
American Astronomical Society, AAS Meeting #213, #460.15; Bulletin of the American Astronomical Society, Vol. 41, p.369
Astronomy and Astrophysics
Astronomy
Scientific paper
LSST will open a new era in the monitoring of gravitationally lensed quasars. By providing well-sampled multicolor light curves, LSST will allow us to cleanly separate microlensing by stars from macro/milli-lensing by dark matter halos and substructure in a large sample of strong lenses. We discuss how chromatic microlensing light curves from LSST will let us disentangle the stellar and dark matter densities in lens galaxies, and also zoom in to study the wavelength-dependent structure of quasar accretion disks. We also discuss the potential of LSST to revolutionize the study of millilensing by CDM substructure by providing not only flux ratios but also time delays for a large sample of lenses. Finally, we discuss the exciting prospect of having a lens sample large enough to examine how small-scale structure in galaxies and their nuclei evolves over a significant fraction of the age of the universe.
Chartas George
Dobler Gregory
Fassnacht Chris
Keeton Charles R. II
LSST Strong Lensing Science Collaboration
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