Active-Galaxy Science with the Large Synoptic Survey Telescope

Details Active-Galaxy Science with the Large Synoptic Survey Telescope Active-Galaxy Science with the Large Synoptic Survey Telescope

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21346012b&link_type=abstract

American Astronomical Society, AAS Meeting #213, #460.12; Bulletin of the American Astronomical Society, Vol. 41, p.368

Physics

Scientific paper

The Large Synoptic Survey Telescope (LSST) will provide great advances in our understanding of the physics and demography of active galactic nuclei (AGNs), owing to its unprecedented combination of solid-angle coverage, photometric and astrometric accuracy, sensitivity, broad wavelength coverage, and time sampling. Well-defined, large (20-80 million) samples of AGNs at 0 < z < 7.5 can be constructed via four approaches: location in color-color space, variability, lack of proper motion, and matching to multiwavelength data. The samples will allow studies of the AGN luminosity function and AGN clustering down to Seyfert luminosities out to z 6-7.5. The time baseline (minutes to years), coupled with the large sample size, will produce a variability data set that can be used to address the physics of the AGN accretion process. Rare events, such as stellar tidal disruptions, the mergers of supermassive black holes, and strong microlensing events, will be identified rapidly allowing intensive follow-up studies. Comparison of LSST data with archival X-ray and infrared fields will be the first stage of follow-up for more than a million AGNs, many of which will be heavily obscured.

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