Accession Number : AD0474634

Title :   OPTICAL IDENTIFICATION OF RADIO SOURCES IN THE 3C REVISED CATALOG,

Corporate Author : OWENS VALLEY RADIO OBSERVATORY PASADENA CA

Personal Author(s) : Wyndham, J. D.

Report Date : 1965

Pagination or Media Count : 55

Abstract : Radio positions with a mean error of + or - 12'' of arc in both coordinates have been used in a search for optical identifications for small diameter sources in the 3C Revised Catalog. The search has been carried out on the prints and plates which comprise the National Geographic Society-Palomar Observatory Sky Survey. Many new identifications are presented together with the previously published material of other workers. More than 50% of the extragalactic sources in the catalog are now identified while for sources with b sub II 15 degrees the figure is upwards of 69%. About 30% of all the identified extragalactic sources are of the quasi-stellar type. (Author)

Descriptors :   (*EXTRATERRESTRIAL RADIO WAVES, GALAXIES), RADIO ASTRONOMY, ASTRONOMY, IDENTIFICATION SYSTEMS, INTERFEROMETERS, ERRORS, STARS, SUPERNOVAE, COLORS, BRIGHTNESS.

Subject Categories : Astronomy

Distribution Statement : APPROVED FOR PUBLIC RELEASE