Toward Microarcsecond Astrometry: Pulsars and the Very Long Baseline Array

Details Toward Microarcsecond Astrometry: Pulsars and the Very Long Baseline Array Toward Microarcsecond Astrometry: Pulsars and the Very Long Baseline Array

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.5303l&link_type=abstract

American Astronomical Society Meeting 203, #53.03; Bulletin of the American Astronomical Society, Vol. 35, p.1291

Astronomy and Astrophysics

Astronomy

Scientific paper

Determination of pulsar parallaxes and proper motions addresses fundamental astrophysical questions such as (1) The physics of core-collapse supernovae; (2) The Galactic distribution of the warm ionized medium; (3) The "size" of neutron star photospheres, with implications for the nuclear equation of state; and (4) reference frame ties.
We are in the midst of a project to obtain parallaxes and proper motions to approximately 25 pulsars, thereby doubling the total number of pulsar parallaxes and proper motions. We are observing with the NRAO Very Long Baseline Array and have conducted half of the planned 8 epochs on most objects. We summarize our astrometric techniques and present preliminary results on selected objects.
See also the dissertation presentation by S. Chatterjee.
The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. Basic research in radio astronomy at the NRL is supported by the Office of Naval Research.

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