Optical Observations of the Gravitational Lens SBS1 520+530 at the Ma[i]danak Observatory

Details Optical Observations of the Gravitational Lens SBS1 520+530 at the Ma[i]danak Observatory Optical Observations of the Gravitational Lens SBS1 520+530 at the Ma[i]danak Observatory

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003arep...47..717z&link_type=abstract

Astronomy Reports, vol. 47, Issue 9, p.717-727

Astronomy and Astrophysics

Astronomy

2

Scientific paper

Observations of the gravitationally lensed quasar SBS 1520+530 obtained in 2000 2001 on the 1.5-m telescope of the Ma danak Observatory (Uzbekistan) are presented. The photometric algorithms used to observe the components of SBS 1520+530 are discussed. The images have a resolution of 0.5″ 0.6″, enabling us to detect the lensing galaxy in the R and I bands and to measure its luminosity and coordinates. The results of photometric observations of components A and B of SBS 1520+530 are presented; the light curves show variability on various time scales from a few weeks to a year. A gravitational-lens model for SBS 1520+530 is constructed utilizing all currently available data.

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