Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.2603k&link_type=abstract
American Astronomical Society Meeting 207, #26.03; Bulletin of the American Astronomical Society, Vol. 37, p.1202
Astronomy and Astrophysics
Astronomy
Scientific paper
The proposed Large Synoptic Survey Telescope will be the first to explore multiple dark energy probes simultaneously, including baryon acoustic oscillations, weak lensing, and strong gravitational lensing. The large data sample, covering the entire visible sky every few nights, will allow an unprecedented survey of deep supernova sources and their lensed images. The latter is a class of objects that have never been observed. Notably, LSST will measure the time delays between different strongly lensed images of the same supernova. This will provide an intriguing probe of dark matter, dark energy, and the expansion rate of the Universe. By simulating LSST observations under realistic conditions, we determined the time delay precision of multiple images from a representative strong-lensed Type Ia supernova. The output of the simulation was a set of light curves according to field and filter, which were subsequently analysed to determine the experimental time delays. We discuss the results of this analysis and its bearing on observing strategies given the predicted numbers of lensed supernovae.
Fassnacht Chris
Kirkby L.
LSST Collaboration
Marshall Patrice
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