Microlensing variability in FBQ 0951+2635: short-time-scale events or a long-time-scale fluctuation?

V. N. Shalyapin,L. J. Goicoechea,E. Koptelova,B. P. Artamonov,A. V. Sergeyev,A. P. Zheleznyak,T. A. Akhunov,O. A. Burkhonov,S. N. Nuritdinov,A. Ullán

Monthly Notices of the Royal Astronomical Society（2009）

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Abstract

We present and analyse new R-band frames of the gravitationally lensed double quasar FBQ 0951+2635. These images were obtained with the 1.5-m AZT-22 Telescope at Maidanak (Uzbekistan) during the 2001–2006 period. Previous results in the R band (1999–2001 period) and the new data allow us to discuss the dominant kind of microlensing variability in FBQ 0951+2635. The time evolution of the flux ratio...

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Key words

gravitational lensing,galaxies: general,quasars: general,quasars: individual: FBQ 0951+2635

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