Proper motions in the knotty bipolar jet in Hen 2-90
Using second-epoch HST imaging of the unusual, bipolar jet source Hen 2-90, we have discovered proper motions of 0.03 arcsec yr-1 in the jet knots.
circumstellar matter↗
Engineering topics
Tingay, S.
Publications and source records attributed to Tingay, S..
The Pearson-Readhead Survey from Space
We are using the VSOP mission to observe a complete sample of Pearson-Readhead survey sources at 4.8 GHz to determine core brightness temperatures and pc-scale jet properties.
Radio↗
Observations of Pearson-Readhead Survey Sources Using VSO and the EVN
Explore the source record for details and available documents.
VSOP space VBLI observations Pearson-Readhead EVN↗
Observations of Pearson-Readhead Sources Using VSOP and the EVN
We present high resolution images, preliminary analysis, and interpretation from VSOP space VLBI observations of Pearson-Readhead survey sources.
VSOP space VLBI Pearson-Readhead EVN astrophysics↗
22 GHz VLBI Survey: Status Report and Preliminary Results
A ground-based VLBI survey to measure the visibilities and correlated flux densities in continuum at 22 GHz of more than 140 extragalactic radio sources has been conducted with baselines up to approximately 11 000 km. The project has been designed to help in preparation of target lists for VSOP and Radioastron Space VLBI missions as well as providing observational data for statistical study of structural properties at 22 GHz on sub-milliarcsecond scales for this large sample of extragalactic sources.
VLBI extragalactic radio sources survey↗
A Relativistically Expanding Radio Source Associated with GRO J1655-40
GRO J1655-40 was discovered as a new, bright X-ray source with the BATSE detector of the Gamma Ray Observatory (GRO) on July 27, 1994.
VLBI↗