Intrinsic quasar variability and time delay determination in the lensed quasar UM673

We present the results of time delay measurements between the A and B components of the gravitationally lensed quasar UM673. The measurements are based on the brightness variations of the quasar components observed with the 1.5-m telescope of the Maidanak Observatory in the V, R and I bands during t...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2010-02, Vol.401 (4), p.2805-2815
Hauptverfasser:	Koptelova, E., Oknyanskij, V. L., Artamonov, B. P., Burkhonov, O.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy cosmology: observations gravitational lensing Luminosity Quasars quasars: individual: UM673 (Q0142−100)
Online-Zugang:	Volltext
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