4 papers
Mapping extreme-scale alignments of quasar polarization vectors
D. Hutsemekers, R. Cabanac, H. Lamy +1
Based on a new sample of 355 quasars with significant optical polarization and using complementary statistical methods, we confirm that quasar polarization vectors are not randomly…
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…
Polarization properties of broad absorption line QSOs : new statistical clues
H. Lamy, D. Hutsemekers
We report the results of statistical tests performed on a sample of 139 broad absorption line (BAL) QSOs with good quality optical spectra and/or optical polarization data. Correla…
A transonic collisionless model of the solar wind
I. Zouganelis, M. Maksimovic, N. Meyer-Vernet +2
Because of the semi-collisional nature of the solar wind, the collisionless or exospheric approach as well as the hydrodynamic one are both inaccurate. However, the advantage of si…