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research article
Microlensing variability in the gravitationally lensed quasar QSO 2237+0305 equivalent to the Einstein Cross - I. Spectrophotometric monitoring with the VLT
We present the results of the first long-term (2.2 years) spectroscopic monitoring of a gravitationally lensed quasar, namely the Einstein Cross QSO 2237+0305. The goal of this paper is to present the observational facts to be compared in follow-up papers with theoretical models to constrain the inner structure of the source quasar.
Type
research article
Web of Science ID
WOS:000253993900008
Authors
Publication date
2008
Published in
Volume
480
Start page
647
End page
661
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 30, 2010
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