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Highly polarized structures in the near-nuclear regions of Cygnus A: intrinsic anisotropy within the cones
(2000)
We present near-IR imaging polarimetry observations of the nucleus of Cygnus A, taken with the NICMOS camera of the HST at a wavelength of 2.0μm. These maps reveal a highly collimated region of polarized emission straddling ...
A near-infrared polarized bipolar cone in the Circinus galaxy
(2000)
We present near–infrared broad–band polarization images of the nuclear regions of the Circinus galaxy in the J, H and K bands. For the first time the south–eastern reflection cone is detected in polarized light, which is ...
Constraints on the nuclear emission of the Circinus galaxy : optical and near-IR spectropolarimetry
(2000)
We present optical and, for the first time, K-band spectropolarimetry of the nuclear region of the Circinus galaxy. In the optical we confirm the previous discovery of polarized broad Hα. We have not detected polarized ...
Studies in mid-infrared spectropolarimetry - II : An atlas of spectra
(2000)
We present 8–13 μm spectropolarimetry of 55 sources and 16–22 μm spectropolarimetry of six of these. This represents a substantial fraction of star formation regions that can be observed in this way with current technology ...
High Circular Polarization in the Star Forming Region NGC 6334: Implications
(Astronomical Society of the Pacific, 2000)
The amino-acids which form the building blocks of biological proteins are all left-handed molecules. By contrast, when these molecules are made in the laboratory equal numbers of the right and left-handed versions are made. ...
A Seyfert-like nucleus concealed in BL Lacertae?
(2000)
We present a series of new spectroscopic observations of BL Lacertae. The observations were obtained over a period of 30 months and sample the violent continuum flare of 1997 June–August. The equivalent width of the recently ...