Microlensing in the double quasar SBS 1520 + 530

  title={Microlensing in the double quasar SBS 1520 + 530},
  author={E. R. Gaynullina and Robert Warren Schmidt and T. Akhunov and O. Burkhonov and Stefan Gottloeber and K. Mirtadjieva and S. N. Nuritdinov and I. Tadjibaev and Joachim Wambsganss and Lutz Wisotzki},
We present the results of a monitoring campaign of the double quasar SBS1520 +530 at Maidanak observatory from April 2003 to August 2004. We obtained light curves in V andR filters that show small-amplitude ∆m ≈ 0.1 mag intrinsic variations of the quasar on time scales of about 100 days. The data set is consistent with the previously determined time d elay of ∆t = (130± 3) days by Burud et al. (2002). We find that the time delay corre cted magnitude di fference between the quasar images is now… CONTINUE READING

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Astronomy Reports

  • A P Zheleznyak, A V Sergeev, O A Burkhonov
  • Astronomy Reports
  • 2003
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