Radio spectra and redshifts of 179 QSOs.
Abstract
A comparison is made between radio spectral type and red shift for all known QSOs having adequate radio and optical data. A ratio of CE (centimeter excess) to N (normal) spectrum sources is defined and its variation with red shift is given. A radio color-color versus red shift diagram for the 179 QSOs is also presented. The CE/N excess is found to increase rapidly for z greater than 2, and the significance of this trend is discussed.
- Publication:
-
The Astronomical Journal
- Pub Date:
- January 1975
- DOI:
- Bibcode:
- 1975AJ.....80....1K
- Keywords:
-
- Microwave Emission;
- Quasars;
- Radio Spectra;
- Red Shift;
- Astronomical Catalogs;
- Depolarization;
- Polarization Characteristics;
- Radio Astronomy;
- Tables (Data);
- Astrophysics