Reference : HST observations of gravitationally lensed QSOs
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/21706
HST observations of gravitationally lensed QSOs
English
Claeskens, Jean-François [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Sluse, Dominique [> > > >]
Surdej, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Jun-2008
proceedings of the 41st ESLAB Symposium "The Impact of HST on European Astronomy" (June 2007)
Astrophysics and Space Science Proceedings series edited by Springer
0806
No
Yes
International
The 41st ESLAB Symposium "The Impact of HST on European Astronomy" (June 2007)
29 May to 1 June, 2007
ST-ECF
ESTEC, Noordwijk
Netherlands
[en] Astrophysics
[en] Thanks to its sharp view, HST has significantly improved our knowledge of tens of gravitationally lensed quasars in four different respects: (1) confirming their lensed nature; (2) detecting the lensing galaxy responsible for the image splitting; (3) improving the astrometric accuracy on the positions of the unresolved QSO images and of the lens; (4) resolving extended lensed structures from the QSO hosts into faint NIR or optical rings or arcs. These observations have helped to break some degeneracies on the lens potential, to probe the galaxy evolution and to reconstruct the true shape of the QSO host with an increased angular resolution.
Researchers
http://hdl.handle.net/2268/21706
http://esoads.eso.org/abs/2008arXiv0806.0567C
The authors thank SAO/NASA ADS Astronomy Abstract Service for their deposit authorization
http://de.arxiv.org/abs/0806.0567

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