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LIGHT CURVES OF THE LENSED IMAGES OF GLQ SDSS J0806+2006 AND TIME DELAY ESTIMATION

Gravitational lensed quasar, SDSS J0806+2006, time delay

Authors

  • Дилшод БЕКОВ базовый докторант (PhD)Национальный университет Узбекистана, Uzbekistan
  • Талъат АХУНОВ доктор ф.м.н.,зав.кафедрой ААФК Национальный университет Узбекистана, Uzbekistan
  • Отабек БУРХОНОВ заведующий отделом Астрономический институт АН РУз2, Uzbekistan
  • Нигина АЛИМОВА базовый докторант (PhD)Национальный университет Узбекистана, Uzbekistan

The paper presents the results of photometric analysis of images of the double gravitationally lensed quasar SDSS J0806+2006,
observed at the Maidanak Observatory in the period 2017-2021. The light curves showed that the brightness of the source-quasar
in this period has a noticeable, and possibly periodic, variability. The probable value of the delay time Δt AB = –17.0±2.5 days is
calculated, the brighter component A is the leading one. This value is consistent with previously predicted theoretical values for
this system.