Microlensing Analysis of the Gravitationally Lensed Quasar SDSS 1650+4251

Details Microlensing Analysis of the Gravitationally Lensed Quasar SDSS 1650+4251 Microlensing Analysis of the Gravitationally Lensed Quasar SDSS 1650+4251

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21914603d&link_type=abstract

American Astronomical Society, AAS Meeting #219, #146.03

Astronomy and Astrophysics

Astronomy

Scientific paper

We present and analyze variability in the optical photometry from our monitoring campaign of the doubly-imaged lensed quasar SDSS1650+4251. We use point spread-function modeling to separate the flux from each of the system's two images in 4 seasons of optical monitoring data from the US Naval Observatory, Flagstaff Station. We analyze these light curves using a Monte Carlo microlensing analysis technique, attempting to reproduce the observed lightcurves with a reasonable set of physical variables. We compile the Monte Carlo results using a Bayesian maximum likelihood technique to yield estimates of the average stellar mass in the lens galaxy, the lens galaxy's dark matter fraction and the quasar's accretion disk size at optical wavelengths.

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