|Author||Lo, K. Y. ♦ Schilizzi, R. T. ♦ Cohen, M. H. ♦ Ross, H. N.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Publisher||Institute of Physics (IOP)|
|Subject Keyword||Physics (Astrophysics & Cosmology)-Quasi-stellar, Radio & X-Ray Sources ♦ Physics (Astrophysics & Cosmology)-Galaxies ♦ Physics Research-Astrophysics & Cosmology-Quasi- Stellar, Radio & X-Ray Sources ♦ COSMIC RADIO SOURCES- RADIOWAVE RADIATION ♦ MILKY WAY- COSMIC RADIO SOURCES ♦ BRIGHTNESS ♦ FLUX DENSITY ♦ INTERFEROMETRY ♦ RESOLUTION ♦ SIZE ♦ TEMPERATURE DEPENDENCE|
|Abstract||A compact radio source at the galactic center has been detected at 3.7 cm on a very long baseline interferometer composed of the Goldstone 64-m and the Owens Valley 40-m telescopes (separation 252 km). The source has an angular size, theta/subs/, on the order of or less than 0./sub /''02, corresponding to a linear size approximately-less-than200 AU or 10$sup -3$ pc, at the distance of the galactic center (10 kpc). The measured flux density is 0.6+-0.1 Jy. The brightness temperature of the source is 3x10$sup 7$ K if theta/subs/approx. =0./ sub /''02. Comparison with previous high-resolution observations of the galactic center suggests time variation in the flux density. The nature of the compact radio source is discussed. (AIP)|
|Learning Resource Type||Article|
|Publisher Department||Owens Valley Radio Observatory, California Institute of Technology|
|Publisher Place||United States|
|Organization||Owens Valley Radio Observatory, California Institute of Technology|
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