180 citations · 386 across the 4 of their papers we have counts for
8 papers · 1 filter
A Bursting Radio Transient in the Direction of the Galactic Center
Paul S. Ray, Scott D. Hyman, T. Joseph Lazio +4
The radio sky is poorly sampled for rapidly varying transients because of the narrow field-of-view of most imaging radio telescopes at cm and shorter wavelengths. The emergence of…
The VLA Low-frequency Sky Survey
A. S. Cohen, W. M. Lane, W. D. Cotton +5
The Very Large Array (VLA) Low-frequency Sky Survey (VLSS) has imaged 95% of the 3*pi sr of sky north of declination = -30 degrees at a frequency of 74 MHz (4 meter wavelength). Th…
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…
Pulsar Parallaxes at 5 GHz with the Very Long Baseline Array
S. Chatterjee, J. M. Cordes, W. H. T. Vlemmings +3
We present the first pulsar parallaxes measured with phase-referenced pulsar VLBI observations at 5 GHz. Due to the steep spectra of pulsars, previous astrometric measurements have…
NE2001. II. Using Radio Propagation Data to Construct a Model for the Galactic Distribution of Free Electrons
J. M. Cordes, T. J. W. Lazio
In Paper I we present a new model for the Galactic distribution of free electrons. In this paper we describe the input data and methodology for determining the structure and parame…