Reduction and analysis of Vla maps for 281 radio-loud quasars using the Cray Y-Mp supercomputer

The thesis reports the reduction and analysis of Very Large Array snapshot observations at 6 cm with the A and C arrays of 192 and 192 + 89 radio sources associated with quasars. The sample includes all of the candidates for the complete samples of radio-loud quasars discussed by Wills and Lynds (1978). The routine reduction included two passes of phase self-calibration. Maps were made with image size of 512 x 512. The A (C) array maps have 0.1 (1.3) arcsec cell sizes, with 0.1 to 0.2 (0.2 to 0.4) mJy/Beam rms noise and dynamic ranges of a few thousand. Radio positions and flux densities were measured, and contour maps were plotted. A statistically significant excess of serendipitous radio sources was found within 2 arcmin of the quasars observed in the C array. These serendipitous sources could be radio galaxies at the quasar redshifts and the excess might arise from rich clusters of galaxies associated with the quasars.

Name thesis:degree_name

Master of Science (MS)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Physics

Grantor dc:publisher

University of Nevada, Las Vegas

Year

1992

Author dc:creator

• Ding, Ailian

Contributors dc:contributor

• P. M. Hintzen

Statement dc:rights

• IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/

Language dc:language

English

Identifier

https://oasis.library.unlv.edu/rtds/230

OAI identifier oai:identifier

oai:oasis.library.unlv.edu:rtds-1229