Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978phys...17..257k&link_type=abstract
(Niels Bohr Institut, Teknisk Videnskabelige Forskningsrad, and Nordisk Institut for Teoretisk Atomfysik, Symposium on Quasars a
Astronomy and Astrophysics
Astronomy
23
Galactic Radio Waves, Galactic Structure, Quasars, Radio Astronomy, Radio Sources (Astronomy), Galactic Nuclei, Radiation Distribution, Radio Galaxies, Radio Telescopes
Scientific paper
High resolution observations made with intercontinental arrays of up to seven radio telescopes permit resolutions better than one thousandth of an arc second, and have disclosed remarkably complex structure in the nuclei of galaxies and quasars. Dimensions as small as a few hundredths of a parsec have been measured for the nuclei of some nearby galaxies; the source at the nucleus of our own Galaxy contains a component only 7 A.U. across and puts a limit on the size of the fundamental energy machine at the Galactic nucleus. In some compact sources, individual components appear to separate with linear velocities well in excess of the speed of light. Although a variety of explanations have been offered, none are entirely satisfactory.
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