82 citations · 259 across the 12 of their papers we have counts for
5 papers · 1 filter
Redshifts and lens profile for the double quasar QJ 0158-4325
C. Faure, T. Anguita, A. Eigenbrod +5
We report on the redshift of the lensing galaxy and of the quasar QJ 0158-4325 and on the lens model of the system. A deep VLT/FORS2 spectrum and HST/NICMOS-F160W images are deconv…
COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses VII. Time delays and the Hubble constant from WFI J2033-4723
C. Vuissoz, F. Courbin, D. Sluse +10
Gravitationally lensed quasars can be used to map the mass distribution in lensing galaxies and to estimate the Hubble constant H0 by measuring the time delays between the quasar i…
DECPHOT: an optimal deconvolution-based photometric reduction method
M. Gillon, P. Magain, V. Chantry +5
A high accuracy photometric reduction method is needed to take full advantage of the potential of the transit method for the detection and characterization of exoplanets, especiall…
Deconvolution of HST images of the Cloverleaf gravitational lens : detection of the lensing galaxy and a partial Einstein ring
Virginie Chantry, Pierre Magain
Archival HST/NICMOS-2 images of the Cloverleaf gravitational lens (H1413+117), a quadruply imaged quasar, have been analysed with a new method derived from the MCS deconvolution al…
A deconvolution-based algorithm for crowded field photometry with unknown Point Spread Function
P. Magain, F. Courbin, M. Gillon +4
A new method is presented for determining the Point Spread Function (PSF) of images that lack bright and isolated stars. It is based on the same principles as the MCS (Magain, Cour…