RX J0911.4+0551 : A NEW MULTIPLE QSO SELECTED FROM THE ROSAT ALL-SKY SURVEY

@inproceedings{Bade1997RXJ,
  title={RX J0911.4+0551 : A NEW MULTIPLE QSO SELECTED FROM THE ROSAT ALL-SKY SURVEY},
  author={Norbert Bade and Joachim Siebert and Sebastian Pedraza Lopez and Wolfgang Voges and Dieter Reimers},
  year={1997}
}
We report from follow-up observations of high redshift AGN candidates from the ROSAT All-Sky Survey (RASS) that RX J0911.4+0551 is a gravitationally lensed QSO with z = 2.800. With an X-ray luminosity of LX = 4 · 1046 ergs s−1 it belongs to the X-ray brightest radio quiet QSOs. However, we must point out that the existing observations do not exclude the possibility that other objects inside the error circle are responsible for the X-ray flux, in particular a lensing cluster. Careful image… CONTINUE READING

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Time Delays in Gravitationally Lensed Quasars

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