[en] The authors present their first observations of RX J0911.4+0551 at the 2.2-m ESO/MPI IRAC 2b in K-band which made them suspect that the QSO might be quadruple. This was confirmed on the optical data from the 2.56-m Nordic Optical Telescope, and on the NTT/SOFI data of the object. Careful deconvolution of the data allows to clearly resolve the object into four QSO components and a lensing galaxy.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Burud, I.
Courbin, F.
Lidman, C.
Meylan, G.
Magain, Pierre ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image
Jaunsen, A. O.
Hjorth, J.
Østensen, R.
Andersen, M. I.
Clasen, J. W.
Stabell, R.
Refsdal, S.
Language :
English
Title :
RX J0911.4+0551: a complex quadruply imaged gravitationally lensed QSO.
