X-RAY-EMITTING STARS IDENTIFIED FROM THE ROSAT ALL-SKY SURVEY AND THE SLOAN DIGITAL SKY SURVEY**Includes observations obtained with the Apache Point Observatory 3.5 m telescope, which is owned and operated by the Astrophysical Research Consortium.
The Astrophysical Journal Supplement Series American Astronomical Society 181:2 (2009) 444-465
Clover - Measuring the Cosmic Microwave Background B-mode Polarization
Twentieth International Symposium on Space Terahertz Technology (2009) 97-97
GUBBINS: A Novel Millimeter-Wave Heterodyne Interferometer
Twentieth International Symposium on Space Terahertz Technology (2009) 82-89
Phase-resolved Faraday rotation in pulsars
ArXiv 0903.5511 (2009)
Abstract:
We have detected significant Rotation Measure variations for 9 bright pulsars, as a function of pulse longitude. An additional sample of 10 pulsars showed a rather constant RM with phase, yet a small degree of RM fluctuation is visible in at least 3 of those cases. In all cases, we have found that the rotation of the polarization position angle across our 1.4 GHz observing band is consistent with the wavelength-squared law of interstellar Faraday Rotation. We provide for the first time convincing evidence that RM variations across the pulse are largely due to interstellar scattering, although we cannot exclude that magnetospheric Faraday Rotation may still have a minor contribution; alternative explanations of this phenomenon, like erroneous de-dispersion and the presence of non-orthogonal polarization modes, are excluded. If the observed, phase-resolved RM variations are common amongst pulsars, then many of the previously measured pulsar RMs may be in error by as much as a few tens of rad m-2.Jets from black hole X-ray binaries: testing, refining and extending empirical models for the coupling to X-rays
(2009)