837 citations · 19.2k across the 257 of their papers we have counts for
4 papers · 2 filters
The VLBA Imaging and Polarimetry Survey at 5 GHz
J. F. Helmboldt, G. B. Taylor, S. Tremblay +13
We present the first results of the VLBA Imaging and Polarimetry Survey (VIPS), a 5 GHz VLBI survey of 1,127 sources with flat radio spectra. Through automated data reduction and i…
The Origin and Motion of PSR J0538+2817 in S147
C. -Y. Ng, Roger W. Romani, Walter F. Brisken +2
We report on VLBA astrometry and CXO imaging of PSR J0538+2817 in the supernova remnant S147. We measure a parallax distance of kpc along with a high-precisio…
The Spectral Energy Distribution of the High-Z Blazar Q0906+693
Roger W. Romani
We describe further observations of QSO J0906+6930, a z=5.48 blazar likely to be detected in gamma-rays. New radio and X-ray data place significant constraints on any kpc-scale ext…
Proper Motion of the Crab Pulsar Revisited
C. -Y. Ng, Roger W. Romani
It has been suggested that the Crab pulsar's proper motion is well aligned with the symmetry axis of the pulsar wind nebula. We have re-visited this question, examining over 6 year…