44 citations · 134 across the 5 of their papers we have counts for
4 papers
Obstructed Telescopes vs Unobstructed Telescopes for Wide Field Survey - A Quantitative Analysis
Balasubramanian Singaravelu, Remi A. Cabanac
Telescopes with unobstructed pupil are known to deliver clean point spread function (PSF) to their focal plane, in contrast to traditional telescopes with obstructed pupil. Recent…
Large-Scale Alignments of Quasar Polarization Vectors: Evidence at Cosmological Scales for Very Light Pseudoscalar Particles Mixing with Photons?
D. Hutsemekers, A. Payez, R. Cabanac +4
Based on a sample of 355 quasars with significant optical polarization, we found that quasar polarization vectors are not randomly oriented over the sky as naturally expected. The…
New optical polarization measurements of quasi-stellar objects. The data
D. Sluse, D. Hutsemekers, H. Lamy +2
New linear polarization measurements (mainly in the V band) are presented for 203 quasi-stellar objects (QSOs). The sample is made up of 94 QSOs located in the North Galactic Pole…
Discovery of a high-redshift Einstein ring
R. A. Cabanac, D. Valls-Gabaud, A. O. Jaunsen +2
We report the discovery of a partial Einstein ring of radius 1.48arcsec produced by a massive (and seemingly isolated) elliptical galaxy. The spectroscopic follow-up at the VLT rev…