PG 1115+080: variations of the A2/A1 flux ratio and new values of the time delays: PG 1115+080: A2/A1 flux ratio and time delays

V. S. Tsvetkova,V. G. Vakulik,V. M. Shulga,R. E. Schild,V. N. Dudinov,A. A. Minakov,S. N. Nuritdinov,B. P. Artamonov,A. Ye. Kochetov,G. V. Smirnov,A. A. Sergeyev,V. V. Konichek,I. Ye. Sinelnikov,A. P. Zheleznyak,V. V. Bruevich,R. Gaisin,T. Akhunov,O. Burkhonov

Monthly Notices of the Royal Astronomical Society（2010）

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摘要

We report the results of our multicolour observations of PG 1115+080 with the 1.5-m telescope of the Maidanak Observatory (Uzbekistan, Central Asia) in 2001–2006. Monitoring data in filter R spanning the 2004, 2005 and 2006 seasons (76 data points) demonstrate distinct brightness variations of the source quasar with the total amplitude of almost 0.4 mag. Our R light curves have shown image C leadi...

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关键词

gravitational lensing: strong,gravitational lensing: micro,quasars: individual: PG 1115+080

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