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Toward a Trigonometric Parallax of Sgr A*

Published online by Cambridge University Press:  12 April 2016

M. J. Reid ,
A. C. S. Readhead ,
R. C. Vermeulen  and
R. N. Treuhaft
M. J. Reid
Affiliation:
Harvard-Smithsonian CfA, Cambridge, MA 02138, U.S.A.
A. C. S. Readhead
Affiliation:
Caltech, Pasadena, CA 91109, U.S.A.
R. C. Vermeulen
Affiliation:
Caltech, Pasadena, CA 91109, U.S.A.
R. N. Treuhaft
Affiliation:
Jet Propulsion Laboratory, Caltech, Pasadena, CA 91109, U.S.A.

Abstract

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We initiated a project with the VLBA to measure directly the distance to the Galactic Center, R0, via a trigonometric parallax. Here we describe the observing program and the first results–direct imaging of the effects of the Sun’s orbit about the Galactic Center.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 164: Radio Emission from Galactic and Extragalactic Compact Sources , 1998 , pp. 335 - 336
Copyright
Copyright © Astronomical Society of the Pacific 1998

References

Zoonematkermani, S. et al. 1990. ApJS, 74, 181–224.Google Scholar