6 papers
Probing the polarization characteristics of SS433 on mas scales
Z. Paragi, R. C. Vermeulen, D. C. Homan +5
We present a status report of dedicated circular polarization (CP) global VLBI observations of SS433. The total intensity image of the source is presented. We do not detect linear…
Multi-Frequency VSOP and VLBA Polarization Observations of 3C279 and 3C345
C. C. Cheung, D. H. Roberts, J. F. C. Wardle +2
This contribution presents preliminary results from coordinated polarization sensitive VSOP and VLBA imaging of the blazars 3C~279 and 3C~345 at multiple frequencies.
Chandra Observations of Three SDSS Quasars at z~6
D. A. Schwartz, C. C. Cheung, J. F. C. Wardle
Chandra snapshot observations of the three most distant quasars then known, at redshifts 5.82, 5.99, and 6.28, gave signficant detections even in the short, 6 -- 8 ks, observations…
Making Movies from Radio Astronomical Images with AIPS
C. C. Cheung, D. C. Homan, J. F. C. Wardle +1
We present a detailed recipe for making movies from multi-epoch radio observations of astronomical sources. Images are interpolated linearly in time to create a smooth succession o…
The Nature of Jets: Evidence from Circular Polarization Observations
John F. C. Wardle, Daniel C. Homan
We review recent observations of circularly polarized radiation from AGN made with the VLBA and with the ATCA. We also discuss briefly the detections of the Galactic sources Sag A*…
Thermal material in jets
A. Celotti, Z. Kuncic, M. J. Rees +1
The properties of thermal material coexisting with non-thermal emitting plasma and strong magnetic field in the powerful jets of Active Galactic Nuclei (AGN) are examined. Theoreti…