Now showing items 1-6 of 6
Optical and infrared polarimetry and photometry of blazars
We have carried out a polarization study of 44 blazars and candidate blazars at optical and near-infrared frequencies covering the period 1986 August to 1988 February. The data show flux and polarization properties changing ...
The optical and infrared-emission of blazars
A polarization study is presented of 44 blazars and candidate blazars observed at optical and near-IR frequencies. The spectrum of the radiation is discussed in terms of shock acceleration models. Frequency dependence is ...
The cool phase of the interstellar medium : Atomic gas
An optical and near-infrared polarization survey of Seyfert and broad-line radio galaxies. 1 : statistical properties
The present broad-band and near-IR flux density and polarization measurements of a sample of 71 Seyfert galaxies and three broad-line radio galaxies confirms earlier indications that the polarization of Seyferts is generally ...
An optical and near-infrared polarization survey of Seyfert and broad-line radio galaxies. 2 : the wavelength dependence of polarization
We discuss the wavelength dependence (0.44-2.2 micron) of polarization of the sample of 71 Seyfert and three broad-line radio galaxies presented in Paper I. For four galaxies, 3A 0557-353, Fairall 51, IC 4329A and NGC 3753, ...