343 citations · 997 across the 16 of their papers we have counts for
7 papers · 1 filter
Getting Its Kicks: A VLBA Parallax for the Hyperfast Pulsar B1508+55
S. Chatterjee, W. H. T. Vlemmings, W. F. Brisken +7
The highest velocity neutron stars establish stringent constraints on natal kicks, asymmetries in supernova core collapse, and the evolution of close binary systems. Here we presen…
Pulsar Astrometry at the Microarcsecond Level
W. H. T. Vlemmings, S. Chatterjee, W. F. Brisken +12
Determination of pulsar parallaxes and proper motions addresses fundamental astrophysical questions. We have recently finished a VLBI astrometry project to determine the proper mot…
From Reference Frames to Relativistic Experiments: Absolute and Relative Radio Astrometry
E. B. Fomalont
Reference systems and frames are crucial for high precision absolute astrometric work, and their foundations must be well-defined. The current frame, the International Celestial Re…
Aberration and the Fundamental Speed of Gravity in the Jovian Deflection Experiment
Sergei M. Kopeikin, Edward B. Fomalont
We describe our explicit Lorentz-invariant solution of the Einstein and null geodesic equations for the deflection experiment of 2002 September 8 when a massive moving body, Jupite…
The Measurement of the Light Deflection from Jupiter: Experimental Results
E. B. Fomalont, S. M. Kopeikin
We have determined the relativistic light deflection of the quasar J0842+1835 as Jupiter passed within 3.7' on 2002 September 8, by measuring the time delay using the VLBA and Effe…
Sub-Milliarcsecond Precision of Pulsar Motions: Using In-Beam Calibrators with the VLBA
E. B. Fomalont, W. M. Goss, A. J. Beasley +1
We present Very Long Baseline Array phase-referenced measurements of the parallax and proper motion of two pulsars, B0919+06 and B1857-26. Sub-milliarcsecond positional accuracy wa…
Detection of a Small Scale Cosmic Background Anisotropy at 3.6 cm
E. A. Richards, E. B. Fomalont, K. I. Kellermann +2
We report on the detection of a feature with negative radio flux in a sensitive, low resolution observation with the VLA. This morphologically peculiar feature is approximately 25"…